Influenzavirus A

VIRION

Molecular biology

Enveloped. Usually rounded but can be filamentous The virions are 80-120 nm in diameter|

GENOME

PB2 pb1 pb1f2 pa ha np na M1 M2 NS1 NEP

Segmented ssRNA(-) linear genome, encapsidated by nucleoprotein (NP). Contains 8 segments coding for 11 proteins. Segments size range from 890 to 2,341nt. Genome total size is 13.5Kb

GENE EXPRESSION

Viral RNA polymerase (PB1, PB2 and PA) transcribes one mRNA from each genome segment. Transcription is primed by cap cleaved from cellular mRNAS by Cap snatching. mRNA are polyadenylated by the viral polymerase stuttering on a poly U track MP and NS mRNA can be spliced, giving rise to mRNA coding for M2 and NEP proteins PB1-F2 is translated from the +1 ORF of PB1 mRNA

REPLICATION

video at XVIVO | Scientific Animation

NUCLEUS

  1. Virus attaches to sialic acid receptor through HA protein and is endocytosed in the host cell.
  2. Endosome acidification induces fusion of virus membrane with the vesicle membrane; encapsidated RNA segments migrate to the nucleus.
  3. Transcription of genomic segments by the viral polymerase produces mRNAs.
  4. genomic (-)RNA
  5. High level of M1 protein induces genomes segments export from nucleus by NEP protein.
  6. Virus assembly and budding occurs at the plasma membrane.
DB LINKS Nucleotide DB: NCBI
Protein DB: UniProtKB
Virus DB:
IRD Influenza research database
OpenfluDB
TAXONOMY Group V: Negative sense ssRNA viruses
Family: Orthomyxoviridae
Genus: Influenzavirus A
Subtype: H1N1
H5N1
SPECIES
Type: Influenza A/Puerto Rico/8/34 H1N1 (FLUAV)
Main: Influenza A virus A/Goose/Guangdong/1/96 H5N1 (FLUAV)
REFERENCE STRAIN Influenza A virus A/Puerto Rico/8/34 (H1N1)
Sequence: RNA1 RNA2 RNA3 RNA4 RNA5 RNA6 RNA7 RNA8
Genome | Proteome
HOST Aquatic birds, Human, Pig, Horse, Seals
CELL TROPISM epithelial respiratory cells
CELL RECEPTOR (S) Sialic acids

Epidemiology

GEOGRAPHY Worldwide, more common in winter
ASSOCIATED DISEASES Acute febrile respiratory tract infection
TRANSMISSION Mammals: Respiratory
Zoonosis, animal contact
Birds: Fecal-oral route from contaminated water
VACCINE Killed vaccine against annual strains of both influenza A and B
ANTIVIRAL DRUGS M2 ion channel inhibitor:
Amantidine, Rimantadine:
Neuraminidase inhibitor:
Zanamivir, Oseltamivir (Tamiflu), Peramivir

Influenza species tropism

It is generally accepted that human influenza viruses preferentially bind to host glycoproteins/glycolipids containing sialic acids in alpha 2,6 linkage, whereas avian influenza viruses bind to those containing sialic acids in alpha 2,3 linkage.

Recent studies have shown that the Human traches and alvoeli epithelial cells are mainly expressing alpha 2,6 sialic acids, when only alveoli are expressing alpha 2,3 sialic acids PubMed. This could explain why avian viruses could succesfully infect humans only when breathed at high doses. Indeed the trachea and bronchioles are much easier to reach than the alveoli for aerial-transmitted virus.

These results are debated, and investigations are needed to understand the whole picture PubMed

Matching UniProtKB/Swiss-Prot entries

533 entries grouped by strain

Only complete proteome entries are shown ( view all 1197 entries)

11 entries

Influenza A virus (strain A/Goose/Guangdong/1/1996 H5N1 genotype Gs/Gd) reference strain

Select_all Deselect_all  
HEMA_I96A0Hemagglutinin

pdb 3S11 

M1_I96A0Matrix protein 1 (M1)
M2_I96A0Matrix protein 2 (Proton channel protein M2)
NCAP_I96A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I96A0Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I96A0Neuraminidase (EC 3.2.1.18)
NS1_I96A0Non-structural protein 1 (NS1) (NS1A)
PA_I96A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)

pdb 3EBJ  3HW3  3HW4  3HW5  3HW6 

PB1F2_I96A0Protein PB1-F2
PB2_I96A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I96A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Puerto Rico/8/1934 H1N1) reference strain

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HEMA_I34A1Hemagglutinin

pdb 1RU7  1RVX  1RVZ 

M1_I34A1Matrix protein 1 (M1)

pdb 1AA7  1EA3  1HHI 

M2_I34A1Matrix protein 2 (Proton channel protein M2)
NCAP_I34A1Nucleoprotein (Nucleocapsid protein) (Protein N)

pdb 2WFS 

NEP_I34A1Nuclear export protein (NEP) (Non-structural protein 2) (NS2)

pdb 1PD3 

NRAM_I34A1Neuraminidase (EC 3.2.1.18)
NS1_I34A1Non-structural protein 1 (NS1) (NS1A)

pdb 2GX9  2ZKO  3L4Q  3O9Q  3O9R  3O9S  3O9T  3O9U  3RVC 

PA_I34A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)

pdb 2ZNL 

PB1F2_I34A1Protein PB1-F2

pdb 2HN8  3BUY 

PB2_I34A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)

pdb 2ZTT  3A1G  3CW4 

RDRP_I34A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

pdb 2ZNL  2ZTT  3A1G 

11 entries

Influenza A virus (strain A/Beijing/39/1975 H3N2)

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HEMA_I75A0Hemagglutinin
M1_I75A0Matrix protein 1 (M1)
M2_I75A0Matrix protein 2 (Proton channel protein M2)
NCAP_I75A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I75A0Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I75A0Neuraminidase (EC 3.2.1.18)
NS1_I75A0Non-structural protein 1 (NS1) (NS1A)
PA_I75A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I75A0Protein PB1-F2
PB2_I75A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I75A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Brazil/11/1978 H1N1)

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HEMA_I77AAHemagglutinin
M1_I77AAMatrix protein 1 (M1)
M2_I77AAMatrix protein 2
NCAP_I77AANucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I77AANuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I77AANeuraminidase (EC 3.2.1.18)
NS1_I77AANon-structural protein 1 (NS1) (NS1A)
PA_I77AAPolymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I77AAProtein PB1-F2
PB2_I77AAPolymerase basic protein 2
RDRP_I77AARNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Brevig Mission/1/1918 H1N1) (Influenza A virus (strain A/South Carolina/1/1918 H1N1))

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HEMA_I18A0Hemagglutinin

pdb 1RD8  1RUZ  2WRG  3GBN  3LZF  3R2X 

M1_I18A0Matrix protein 1 (M1)
M2_I18A0Matrix protein 2 (Proton channel protein M2)
NCAP_I18A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I18A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I18A0Neuraminidase (EC 3.2.1.18)

pdb 3B7E  3BEQ  3CYE 

NS1_I18A0Non-structural protein 1 (NS1) (NS1A)
PA_I18A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I18A0Protein PB1-F2
PB2_I18A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I18A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Chicken/Pennsylvania/1/1983 H5N2)

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HEMA_I83A5Hemagglutinin
M1_I83A5Matrix protein 1 (M1)
M2_I83A5Matrix protein 2 (Proton channel protein M2)
NCAP_I83A5Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I83A5Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I83A5Neuraminidase (EC 3.2.1.18)
NS1_I83A5Non-structural protein 1 (NS1) (NS1A)
PA_I83A5Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I83A5Protein PB1-F2
PB2_I83A5Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I83A5RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Chicken/Scotland/1959 H5N1)

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HEMA_I59A0Hemagglutinin
M1_I59A0Matrix protein 1 (M1)
M2_I59A0Matrix protein 2 (Proton channel protein M2)
NCAP_I59A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I59A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I59A0Neuraminidase (EC 3.2.1.18)
NS1_I59A0Non-structural protein 1 (NS1) (NS1A)
PA_I59A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I59A0Protein PB1-F2
PB2_I59A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I59A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Chile/1/1983 H1N1)

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HEMA_I83A1Hemagglutinin
M1_I83A1Matrix protein 1 (M1)
M2_I83A1Matrix protein 2
NCAP_I83A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I83A1Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I83A1Neuraminidase (EC 3.2.1.18)
NS1_I83A1Non-structural protein 1 (NS1) (NS1A)
PA_I83A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I83A1Protein PB1-F2
PB2_I83A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I83A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/China:Nanchang/11/1996 H1N1)

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HEMA_I96A3Hemagglutinin
M1_I96A3Matrix protein 1 (M1)
M2_I96A3Matrix protein 2
NCAP_I96A3Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I96A3Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I96A3Neuraminidase (EC 3.2.1.18)
NS1_I96A3Non-structural protein 1 (NS1) (NS1A)
PA_I96A3Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I96A3Protein PB1-F2
PB2_I96A3Polymerase basic protein 2
RDRP_I96A3RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Duck/England/1/1956 H11N6)

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HEMA_I56A2Hemagglutinin
M1_I56A2Matrix protein 1 (M1)
M2_I56A2Matrix protein 2 (Proton channel protein M2)
NCAP_I56A2Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I56A2Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I56A2Neuraminidase (EC 3.2.1.18)

pdb 1V0Z  1W1X  1W20  1W21  2CML 

NS1_I56A2Non-structural protein 1 (NS1) (NS1A)
PA_I56A2Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I56A2Protein PB1-F2
PB2_I56A2Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I56A2RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Duck/Hokkaido/8/1980 H3N8)

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HEMA_I80A6Hemagglutinin
M1_I80A6Matrix protein 1 (M1)
M2_I80A6Matrix protein 2 (Proton channel protein M2)
NCAP_I80A6Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80A6Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I80A6Neuraminidase (EC 3.2.1.18)
NS1_I80A6Non-structural protein 1 (NS1) (NS1A)
PA_I80A6Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80A6Protein PB1-F2
PB2_I80A6Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I80A6RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Duck/Hong Kong/2986.1/2000 H5N1 genotype C)

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HEMA_I00A0Hemagglutinin

pdb 3S11 

M1_I00A0Matrix protein 1 (M1)
M2_I00A0Matrix protein 2 (Proton channel protein M2)
NCAP_I00A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I00A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I00A0Neuraminidase (EC 3.2.1.18)
NS1_I00A0Non-structural protein 1 (NS1) (NS1A)
PA_I00A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I00A0Protein PB1-F2
PB2_I00A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I00A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Grey teal/Australia/2/1979 H4N4)

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HEMA_I79A7Hemagglutinin
M1_I79A7Matrix protein 1 (M1)
M2_I79A7Matrix protein 2 (Proton channel protein M2)
NCAP_I79A7Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I79A7Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I79A7Neuraminidase (EC 3.2.1.18)
NS1_I79A7Non-structural protein 1 (NS1) (NS1A)
PA_I79A7Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I79A7Protein PB1-F2
PB2_I79A7Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I79A7RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Gull/Maryland/704/1977 H13N6)

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HEMA_I77AFHemagglutinin
M1_I77AFMatrix protein 1 (M1)
M2_I77AFMatrix protein 2
NCAP_I77AFNucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I77AFNuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I77AFNeuraminidase (EC 3.2.1.18)
NS1_I77AFNon-structural protein 1 (NS1) (NS1A)
PA_I77AFPolymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I77AFProtein PB1-F2
PB2_I77AFPolymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I77AFRNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Gull/Minnesota/945/1980 H13N6)

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HEMA_I80ADHemagglutinin
M1_I80ADMatrix protein 1 (M1)
M2_I80ADMatrix protein 2 (Proton channel protein M2)
NCAP_I80ADNucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80ADNuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I80ADNeuraminidase (EC 3.2.1.18)
NS1_I80ADNon-structural protein 1 (NS1) (NS1A)
PA_I80ADPolymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80ADProtein PB1-F2
PB2_I80ADPolymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I80ADRNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Henry/1936 H1N1)

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HEMA_I36A0Hemagglutinin
M1_I36A0Matrix protein 1 (M1)
M2_I36A0Matrix protein 2
NCAP_I36A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I36A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I36A0Neuraminidase (EC 3.2.1.18)
NS1_I36A0Non-structural protein 1 (NS1) (NS1A)
PA_I36A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I36A0Protein PB1-F2
PB2_I36A0Polymerase basic protein 2
RDRP_I36A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Hickox/1940 H1N1)

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HEMA_I40A0Hemagglutinin
M1_I40A0Matrix protein 1 (M1)
M2_I40A0Matrix protein 2
NCAP_I40A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I40A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I40A0Neuraminidase (EC 3.2.1.18)
NS1_I40A0Non-structural protein 1 (NS1) (NS1A)
PA_I40A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I40A0Protein PB1-F2
PB2_I40A0Polymerase basic protein 2
RDRP_I40A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Hong Kong/1/1968 H3N2)

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HEMA_I68A4Hemagglutinin

pdb 3SDY  3ZTJ 

M1_I68A4Matrix protein 1 (M1)
M2_I68A4Matrix protein 2 (Proton channel protein M2)
NCAP_I68A4Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I68A4Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I68A4Neuraminidase (EC 3.2.1.18)
NS1_I68A4Non-structural protein 1 (NS1) (NS1A)
PA_I68A4Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I68A4Protein PB1-F2
PB2_I68A4Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I68A4RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Hong Kong/156/1997 H5N1 genotype Gs/Gd)

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HEMA_I97A1Hemagglutinin
M1_I97A1Matrix protein 1 (M1)
M2_I97A1Matrix protein 2 (Proton channel protein M2)

pdb 2KAD  2KQT  3C9J  3LBW 

NCAP_I97A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I97A1Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I97A1Neuraminidase (EC 3.2.1.18)
NS1_I97A1Non-structural protein 1 (NS1) (NS1A)
PA_I97A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I97A1Protein PB1-F2
PB2_I97A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I97A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

pdb 3CM8 

11 entries

Influenza A virus (strain A/Hong Kong/5/1983 H3N2)

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HEMA_I83A8Hemagglutinin
M1_I83A8Matrix protein 1 (M1)
M2_I83A8Matrix protein 2 (Proton channel protein M2)
NCAP_I83A8Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I83A8Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I83A8Neuraminidase (EC 3.2.1.18)
NS1_I83A8Non-structural protein 1 (NS1) (NS1A)
PA_I83A8Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I83A8Protein PB1-F2
PB2_I83A8Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I83A8RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/India/6263/1980 H1N1)

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HEMA_I80AAHemagglutinin
M1_I80AAMatrix protein 1 (M1)
M2_I80AAMatrix protein 2
NCAP_I80AANucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80AANuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I80AANeuraminidase (EC 3.2.1.18)
NS1_I80AANon-structural protein 1 (NS1) (NS1A)
PA_I80AAPolymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80AAProtein PB1-F2
PB2_I80AAPolymerase basic protein 2
RDRP_I80AARNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Malaysia:Malaya/302/1954 H1N1)

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HEMA_I54A2Hemagglutinin
M1_I54A2Matrix protein 1 (M1)
M2_I54A2Matrix protein 2
NCAP_I54A2Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I54A2Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I54A2Neuraminidase (EC 3.2.1.18)
NS1_I54A2Non-structural protein 1 (NS1) (NS1A)
PA_I54A2Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I54A2Protein PB1-F2
PB2_I54A2Polymerase basic protein 2
RDRP_I54A2RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/1/1971 H3N2)

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HEMA_I71A1Hemagglutinin
M1_I71A1Matrix protein 1 (M1)
M2_I71A1Matrix protein 2 (Proton channel protein M2)
NCAP_I71A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I71A1Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I71A1Neuraminidase (EC 3.2.1.18)
NS1_I71A1Non-structural protein 1 (NS1) (NS1A)
PA_I71A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I71A1Protein PB1-F2
PB2_I71A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I71A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/101/1972 H3N2)

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HEMA_I72A4Hemagglutinin
M1_I72A4Matrix protein 1 (M1)
M2_I72A4Matrix protein 2 (Proton channel protein M2)
NCAP_I72A4Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I72A4Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I72A4Neuraminidase (EC 3.2.1.18)
NS1_I72A4Non-structural protein 1 (NS1) (NS1A)
PA_I72A4Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I72A4Protein PB1-F2
PB2_I72A4Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I72A4RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/110/1976 H3N2)

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HEMA_I76A6Hemagglutinin
M1_I76A6Matrix protein 1 (M1)
M2_I76A6Matrix protein 2 (Proton channel protein M2)
NCAP_I76A6Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I76A6Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I76A6Neuraminidase (EC 3.2.1.18)
NS1_I76A6Non-structural protein 1 (NS1) (NS1A)
PA_I76A6Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I76A6Protein PB1-F2
PB2_I76A6Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I76A6RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/18/1978 H3N2)

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HEMA_I78A8Hemagglutinin
M1_I78A8Matrix protein 1 (M1)
M2_I78A8Matrix protein 2 (Proton channel protein M2)
NCAP_I78A8Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I78A8Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I78A8Neuraminidase (EC 3.2.1.18)
NS1_I78A8Non-structural protein 1 (NS1) (NS1A)
PA_I78A8Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I78A8Protein PB1-F2
PB2_I78A8Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I78A8RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/2/1978 H3N2)

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HEMA_I78A7Hemagglutinin
M1_I78A7Matrix protein 1 (M1)
M2_I78A7Matrix protein 2 (Proton channel protein M2)
NCAP_I78A7Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I78A7Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I78A7Neuraminidase (EC 3.2.1.18)
NS1_I78A7Non-structural protein 1 (NS1) (NS1A)
PA_I78A7Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I78A7Protein PB1-F2
PB2_I78A7Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I78A7RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Memphis/4/1980 H3N2)

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HEMA_I80A4Hemagglutinin
M1_I80A4Matrix protein 1 (M1)
M2_I80A4Matrix protein 2 (Proton channel protein M2)
NCAP_I80A4Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80A4Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I80A4Neuraminidase (EC 3.2.1.18)
NS1_I80A4Non-structural protein 1 (NS1) (NS1A)
PA_I80A4Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80A4Protein PB1-F2
PB2_I80A4Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I80A4RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Port Chalmers/1/1973 H3N2)

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HEMA_I73A5Hemagglutinin
M1_I73A5Matrix protein 1 (M1)
M2_I73A5Matrix protein 2 (Proton channel protein M2)
NCAP_I73A5Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I73A5Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I73A5Neuraminidase (EC 3.2.1.18)
NS1_I73A5Non-structural protein 1 (NS1) (NS1A)
PA_I73A5Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I73A5Protein PB1-F2
PB2_I73A5Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I73A5RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Russia:St.Petersburg/8/2006 H1N1)

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HEMA_I06A0Hemagglutinin
M1_I06A0Matrix protein 1 (M1)
M2_I06A0Matrix protein 2
NCAP_I06A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I06A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I06A0Neuraminidase (EC 3.2.1.18)
NS1_I06A0Non-structural protein 1 (NS1) (NS1A)
PA_I06A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I06A0Protein PB1-F2
PB2_I06A0Polymerase basic protein 2
RDRP_I06A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Seal/Massachusetts/1/1980 H7N7)

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HEMA_I80A2Hemagglutinin
M1_I80A2Matrix protein 1 (M1)
M2_I80A2Matrix protein 2 (Proton channel protein M2)
NCAP_I80A2Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80A2Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I80A2Neuraminidase (EC 3.2.1.18)
NS1_I80A2Non-structural protein 1 (NS1) (NS1A)
PA_I80A2Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80A2Protein PB1-F2
PB2_I80A2Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I80A2RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Swine/Colorado/1/1977 H3N2)

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HEMA_I77A4Hemagglutinin
M1_I77A4Matrix protein 1 (M1)
M2_I77A4Matrix protein 2 (Proton channel protein M2)
NCAP_I77A4Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I77A4Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I77A4Neuraminidase (EC 3.2.1.18)
NS1_I77A4Non-structural protein 1 (NS1) (NS1A)
PA_I77A4Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I77A4Protein PB1-F2
PB2_I77A4Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I77A4RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Swine/Wisconsin/1/1961 H1N1)

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HEMA_I61A1Hemagglutinin
M1_I61A1Matrix protein 1 (M1)
M2_I61A1Matrix protein 2 (Proton channel protein M2)
NCAP_I61A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I61A1Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I61A1Neuraminidase (EC 3.2.1.18)
NS1_I61A1Non-structural protein 1 (NS1) (NS1A)
PA_I61A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I61A1Putative protein PB1-F2
PB2_I61A1Polymerase basic protein 2
RDRP_I61A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Turkey/Ireland/1378/1983 H5N8)

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HEMA_I83A4Hemagglutinin
M1_I83A4Matrix protein 1 (M1)
M2_I83A4Matrix protein 2 (Proton channel protein M2)
NCAP_I83A4Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I83A4Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I83A4Neuraminidase (EC 3.2.1.18)
NS1_I83A4Non-structural protein 1 (NS1) (NS1A)
PA_I83A4Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I83A4Protein PB1-F2
PB2_I83A4Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I83A4RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Turkey/Minnesota/833/1980 H4N2)

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HEMA_I80A8Hemagglutinin
M1_I80A8Matrix protein 1 (M1)
M2_I80A8Matrix protein 2 (Proton channel protein M2)
NCAP_I80A8Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I80A8Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I80A8Neuraminidase (EC 3.2.1.18)
NS1_I80A8Non-structural protein 1 (NS1) (NS1A)
PA_I80A8Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I80A8Protein PB1-F2
PB2_I80A8Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I80A8RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Turkey/Ontario/6118/1968 H8N4)

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HEMA_I68A3Hemagglutinin
M1_I68A3Matrix protein 1 (M1)
M2_I68A3Matrix protein 2 (Proton channel protein M2)
NCAP_I68A3Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I68A3Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I68A3Neuraminidase (EC 3.2.1.18)
NS1_I68A3Non-structural protein 1 (NS1) (NS1A)
PA_I68A3Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I68A3Protein PB1-F2
PB2_I68A3Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I68A3RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Turkey/Wisconsin/1/1966 H9N2)

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HEMA_I66A1Hemagglutinin
M1_I66A1Matrix protein 1 (M1)
M2_I66A1Matrix protein 2 (Proton channel protein M2)
NCAP_I66A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I66A1Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I66A1Neuraminidase (EC 3.2.1.18)
NS1_I66A1Non-structural protein 1 (NS1) (NS1A)
PA_I66A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I66A1Protein PB1-F2
PB2_I66A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I66A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/USA:Albany/12/1951 H1N1)

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HEMA_I51A0Hemagglutinin
M1_I51A0Matrix protein 1 (M1)
M2_I51A0Matrix protein 2
NCAP_I51A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I51A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I51A0Neuraminidase (EC 3.2.1.18)
NS1_I51A0Non-structural protein 1 (NS1) (NS1A)
PA_I51A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I51A0Protein PB1-F2
PB2_I51A0Polymerase basic protein 2
RDRP_I51A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/USA:Huston/AA/1945 H1N1)

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HEMA_I45A0Hemagglutinin
M1_I45A0Matrix protein 1 (M1)
M2_I45A0Matrix protein 2
NCAP_I45A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I45A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I45A0Neuraminidase (EC 3.2.1.18)
NS1_I45A0Non-structural protein 1 (NS1) (NS1A)
PA_I45A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I45A0Protein PB1-F2
PB2_I45A0Polymerase basic protein 2
RDRP_I45A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/USA:Iowa/1943 H1N1)

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HEMA_I43A0Hemagglutinin
M1_I43A0Matrix protein 1 (M1)
M2_I43A0Matrix protein 2
NCAP_I43A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I43A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I43A0Neuraminidase (EC 3.2.1.18)
NS1_I43A0Non-structural protein 1 (NS1) (NS1A)
PA_I43A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I43A0Protein PB1-F2
PB2_I43A0Polymerase basic protein 2
RDRP_I43A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/USA:Memphis/10/1996 H1N1)

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HEMA_I96A2Hemagglutinin
M1_I96A2Matrix protein 1 (M1)
M2_I96A2Matrix protein 2
NCAP_I96A2Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I96A2Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I96A2Neuraminidase (EC 3.2.1.18)
NS1_I96A2Non-structural protein 1 (NS1) (NS1A)
PA_I96A2Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I96A2Protein PB1-F2
PB2_I96A2Polymerase basic protein 2
RDRP_I96A2RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/USA:Phila/1935 H1N1)

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HEMA_I35A3Hemagglutinin
M1_I35A3Matrix protein 1 (M1)
M2_I35A3Matrix protein 2
NCAP_I35A3Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I35A3Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I35A3Neuraminidase (EC 3.2.1.18)
NS1_I35A3Non-structural protein 1 (NS1) (NS1A)
PA_I35A3Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I35A3Protein PB1-F2
PB2_I35A3Polymerase basic protein 2
RDRP_I35A3RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

11 entries

Influenza A virus (strain A/Wilson-Smith/1933 H1N1) (Influenza A virus (strain A/WS/1933 H1N1))

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HEMA_I33A0Hemagglutinin
M1_I33A0Matrix protein 1 (M1)
M2_I33A0Matrix protein 2 (Proton channel protein M2)
NCAP_I33A0Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I33A0Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I33A0Neuraminidase (EC 3.2.1.18)
NS1_I33A0Non-structural protein 1 (NS1) (NS1A)
PA_I33A0Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I33A0Protein PB1-F2
PB2_I33A0Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I33A0RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/Duck/Czechoslovakia/1956 H4N6)

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HEMA_I56A1Hemagglutinin
M1_I56A1Matrix protein 1 (M1)
M2_I56A1Matrix protein 2 (Proton channel protein M2)
NCAP_I56A1Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I56A1Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NS1_I56A1Non-structural protein 1 (NS1) (NS1A)
PA_I56A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I56A1Protein PB1-F2
PB2_I56A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I56A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/Duck/Germany/1949 H10N7)

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HEMA_I49A1Hemagglutinin
M1_I49A1Matrix protein 1 (M1)
M2_I49A1Matrix protein 2 (Proton channel protein M2)
NEP_I49A1Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I49A1Neuraminidase (EC 3.2.1.18)
NS1_I49A1Non-structural protein 1 (NS1) (NS1A)
PA_I49A1Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I49A1Protein PB1-F2
PB2_I49A1Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I49A1RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/Memphis/102/1972 H3N2)

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HEMA_I72A3Hemagglutinin
M1_I72A3Matrix protein 1 (M1)
M2_I72A3Matrix protein 2 (Proton channel protein M2)
NEP_I72A3Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I72A3Neuraminidase (EC 3.2.1.18)
NS1_I72A3Non-structural protein 1 (NS1) (NS1A)
PA_I72A3Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I72A3Protein PB1-F2
PB2_I72A3Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I72A3RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/Singapore/1/1957 H2N2)

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HEMA_I57A5Hemagglutinin

pdb 2WR7  2WRB  2WRC 

M1_I57A5Matrix protein 1 (M1)
M2_I57A5Matrix protein 2 (Proton channel protein M2)
NCAP_I57A5Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I57A5Nuclear export protein (NEP) (Non structural protein 2) (NS2)
NRAM_I57A5Neuraminidase (EC 3.2.1.18)
NS1_I57A5Non-structural protein 1 (NS1) (NS1A)
PA_I57A5Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB2_I57A5Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I57A5RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/USSR/90/1977 H1N1)

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HEMA_I77ABHemagglutinin
M1_I77ABMatrix protein 1 (M1)
M2_I77ABMatrix protein 2 (Proton channel protein M2)

pdb 1NYJ  2H95 

NCAP_I77ABNucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I77ABNuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I77ABNeuraminidase (EC 3.2.1.18)
PA_I77ABPolymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB1F2_I77ABProtein PB1-F2
PB2_I77ABPolymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I77ABRNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...

10 entries

Influenza A virus (strain A/Udorn/307/1972 H3N2)

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HEMA_I72A2Hemagglutinin
M1_I72A2Matrix protein 1 (M1)
M2_I72A2Matrix protein 2 (Proton channel protein M2)

pdb 1MP6  2KIH  2KWX  2L0J  2RLF 

NCAP_I72A2Nucleoprotein (Nucleocapsid protein) (Protein N)
NEP_I72A2Nuclear export protein (NEP) (Non-structural protein 2) (NS2)
NRAM_I72A2Neuraminidase (EC 3.2.1.18)
NS1_I72A2Non-structural protein 1 (NS1) (NS1A)

pdb 1AIL  1NS1  2KKZ  2RHK  3EE8  3EE9  3KWG  3KWI 

PA_I72A2Polymerase acidic protein (RNA-directed RNA polymerase subunit P2)
PB2_I72A2Polymerase basic protein 2 (RNA-directed RNA polymerase subunit P3)
RDRP_I72A2RNA-directed RNA polymerase catalytic subunit (EC 2.7.7.48) (Polymerase basic ...
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