P2virus

VIRION

Non-enveloped, head-tail structure. The icosahedral head is about 60 nm, with a T=7 dextro symmetry , composed of 72 capsomers. The tail is contractile, about 135 × 18 nm, has 6 short kinked fibers.

GENOME

Linear, dsDNA genome of about 34 kb, encoding for approximately 45 proteins. The genome has cohesive ends (cos sites).

GENE EXPRESSION

Genes are transcribed by operons.

REPLICATION

CYTOPLASMIC

  1. Adsorption: the phage attaches to the target cell through its tail fibers.
  2. Ejection of the viral DNA into host cell cytoplasm by contraction of the tail sheath.
  3. Transcription and translation of early genes.
  4. Synthesis of linear concatemers copies of viral DNA by rolling circle. Transcription and translation of late genes.
  5. Assembly of an empty procapsid and packaging of the genome.
  6. Viral tail fibers assembly and viral tail assembly.
  7. Mature virions are released from the cell by lysis.

Matching UniProtKB/Swiss-Prot entries

55 entries grouped by strain (browse by keywords)

39 entries

Escherichia phage P2 (Bacteriophage P2) reference strain

Select_allDeselect_all
ENLYS_BPP2 Endolysin (EC 4.2.2.n2) (Lysis protein) (Lysozyme) (Protein gpK) (Transglycosylase)
BPX_BPP2 Baseplate protein X (Gene X protein) (GpX)
RPC_BPP2 Repressor protein C
HOLIN_BPP2 Holin
FIBH_BPP2 Probable tail fiber protein (GpH)
TSP_BPP2 Tail sheath protein (TSP) (Major tail sheath protein) (Protein FI)
TMP_BPP2 Probable tape measure protein (TMP) (Gene product T) (gpT)
SPAN1_BPP2 Probable spanin, inner membrane subunit (i-spanin) (Protein lysB)
SPAN2_BPP2 Probable spanin, outer lipoprotein subunit (Protein lysC)
SCAF_BPP2 Capsid assembly scaffolding protein (Gene product O) (GpO) (Head morphogenesis protein) (Scaffold ...
TAP_BPP2 Tail assembly protein E (Gene product E) (gpE) (Tail assembly chaperone) (TAC)
VPA_BPP2 Replication gene A protein (EC 3.1.-.-) (GpA)
TFA_BPP2 Probable tail fiber assembly protein (GpG)
TUBE_BPP2 Tail tube protein (TTP) (Protein FII)
BPJ_BPP2 Baseplate protein J (Gene J protein) (GpJ)
CAPSD_BPP2 Capsid proteins (GpN) [Cleaved into: Minor capsid protein H1; Minor capsid protein H2; Major capsid ...
BPI_BPP2 Baseplate protein I (Gene I protein) (GpI)
BPW_BPP2 Baseplate protein W (Gene W protein) (GpW)
BPD_BPP2 Probable baseplate hub protein (Gene D protein) (GpD)
VCOX_BPP2 Regulatory protein cox
YO91_BPP2 Uncharacterized 12.9 kDa protein in GpA 3'region (ORF5)
YO83_BPP2 Uncharacterized 10.2 kDa protein in GpA 5'region (ORF4)
YO80_BPP2 Uncharacterized 8.3 kDa protein in GpA 5'region (ORF1)
YO81_BPP2 Uncharacterized 11.3 kDa protein in GpA 5'region (ORF2)
YO82_BPP2 Uncharacterized 8.2 kDa protein in gpA 5'region (ORF3)
VPB_BPP2 Replication gene B protein (GpB)
VINT_BPP2 Integrase (EC 2.7.7.-) (EC 3.1.-.-)
VOGR_BPP2 Late control protein ogr
VPS_BPP2 Tail completion protein S (GpS)
VPL_BPP2 Head completion/stabilization protein (GpL)
VPM_BPP2 Terminase, endonuclease subunit (GpM)
VPR_BPP2 Tail completion protein R (GpR)
YSV_BPP2 Uncharacterized 30.4 kDa protein in S-V intergenic region (ORF-30)
VOLD_BPP2 Overcoming lysogenization defect protein
VPP_BPP2 Terminase, ATPase subunit (GpP)
ANTIH_BPP2 Putative antiholin (Protein lysA)
SPIKE_BPP2 Spike protein (Baseplate assembly protein gpV) (Gene V protein) (GpV)
TAPFS_BPP2 Tail assembly protein E' (Gene product E') (gpE') (Tail assembly chaperone) (TAC)
PORTL_BPP2 Probable portal protein (GpQ)

16 entries

Escherichia phage 186 (Bacteriophage 186) reference strain

Select_allDeselect_all
CP81_BP186 Uncharacterized exonuclease CP81 (EC 3.1.-.-)
CP79_BP186 Uncharacterized 8.8 kDa protein in GpA 5'region
CP69_BP186 Uncharacterized 8.4 kDa protein
CP84_BP186 Uncharacterized 37.8 kDa protein in gpa 5'region
CP83_BP186 Uncharacterized 10.4 kDa protein in GpA 5'region
CP80_BP186 Uncharacterized 8.5 kDa protein in gpA 5'region
RPC1_BP186 Repressor protein CI
RPC2_BP186 Regulatory protein CII
VAPL_BP186 Protein apl
TUM_BP186 SOS operon TUM protein (ORF95 protein) (Protein TUM95)
VPA_BP186 Replication gene A protein (EC 3.1.-.-) (GpA)
BPD_BP186 Probable baseplate hub protein (Gene D protein) (GpD) (Late control gene D protein)
VPB_BP186 Late control gene B protein (GpB)
VINT_BP186 Integrase (EC 2.7.7.-) (EC 3.1.-.-)
VDHR_BP186 Protein dhr
VFIL_BP186 Protein fil