P1virus

VIRION

Non-enveloped, head-tail structure. The icosahedral head is about 85 nm in diameter and virions also produce head size variants (about 47-65 nm). The tail is long, 228 × 18 nm, contractile, has six 90 nm-long kinked fibers and a base plate.

GENOME

Linear, dsDNA genome of about 100 kb, encoding for approximately 100 proteins. The genome is terminally redundant and circularly permuted.

GENE EXPRESSION

Genes are transcribed by operons.

REPLICATION

CYTOPLASMIC

  1. Adsorption: the phage attaches to the target cell through its tail fibers. Two types of fibers are encoded by the phage to allow receptor tropism switching.
  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. 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

30 entries grouped by protein (browse by keywords)

All proteins are shown (view only 19 complete proteome entries)

1 entry

Antirepressor protein 1 (ant1) (Repressor bypass protein B) (rebB)

ANT_BPP1
Escherichia phage P1 (Bacteriophage P1)

1 entry

Modulator protein

BOF_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

2 entries

DNA-invertase (Site-specific recombinase)

Select_allDeselect_all
CIN_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain
CIN_BPP7
Enterobacteria phage P7 (Bacteriophage P7)

1 entry

Defense against restriction protein A (DarA)

DARA_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Defense against restriction protein B (EC 3.6.4.-) (DarB)

DARB_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Methyltransferase Dmt (EC 2.1.1.-)

DMT_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Protein kinase doc (EC 2.7.11.1) (Death on curing protein) (Toxin doc)

DOC_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Protein kilA

KILA_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Late promoter-activating protein (Gp10)

LPA_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Lysozyme (EC 3.2.1.17) (Endolysin) (Lysis protein) (Muramidase) (Protein gp17)

LYS_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

2 entries

Terminase A protein (DNA-packaging protein A) (PACase A protein)

Select_allDeselect_all
PACA_BPP1
Escherichia phage P1 (Bacteriophage P1)
PACA_BPP7
Enterobacteria phage P7 (Bacteriophage P7)

1 entry

Antitoxin phd (Addiction protein pdh) (Prevent host death protein)

PHD_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Recombinase cre

RECR_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Recombination enhancement function protein

REF_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Replication protein repL

REPL_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

2 entries

Repressor protein C1

Select_allDeselect_all
RPC1_BPP1
Escherichia phage P1 (Bacteriophage P1)
RPC1_BPP7
Enterobacteria phage P7 (Bacteriophage P7)

Repressor protein C1 (P7c1)

1 entry

Repressor protein C4

RPC4_BPP1
Escherichia phage P1 (Bacteriophage P1)

1 entry

Single-stranded DNA-binding protein (SSB-P1)

SSB_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Type III restriction-modification system EcoPI enzyme mod (M.EcoPI) (EC 2.1.1.72) (EcoPI methyltransferase)

T3MO_BPP1
Escherichia phage P1 (Bacteriophage P1)

1 entry

Type III restriction-modification system EcoPI enzyme res (EC 3.1.21.5)

T3RE_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Protein tec

TEC_BPP1
Escherichia phage P1 (Bacteriophage P1)

2 entries

Probable terminase, large subunit (EC 3.1.-.-) (DNA-packaging protein B) (PACase B protein) (Terminase B protein)

Select_allDeselect_all
TERL_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

Probable terminase, large subunit (EC 3.1.-.-) (DNA-packaging protein B) (PACase B protein) (Terminase B protein) (Terminase large subunit)

TERL_BPP7
Enterobacteria phage P7 (Bacteriophage P7)

1 entry

Tail fiber assembly protein U (Gene product U) (gpU)

U1_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Tail fiber assembly protein U' (Gene product U') (gpU')

U2_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Tail fiber protein R (GpR)

VGR_BPP1
Escherichia phage P1 (Bacteriophage P1) reference strain

1 entry

Uncharacterized 36.0 kDa protein in doc-Gp10 intergenic region (ORFA)

YORA_BPP1
Escherichia phage P1 (Bacteriophage P1)