Enveloped virion of which the membrane is surrounded by a capsid with an icosahedral symmetry (T=169), 100-220 nm in diameter. Dense material are present at each 5-fold symmetry vertex
Source: Van Etten 2003 (Pubmed )


Linear, dsDNA genome of about 330 kb with crosslinked hairpin ends. PBCV-1 genome encode for approximately 700 ORFs.




  1. Virus attaches to host receptors , inducing release of viral genome into the cell.
  2. Migration of the DNA core to the nucleus?
  3. Synthesis of early proteins.
  4. Replication of genomic DNA..
  5. Late proteins synthesis, assembly of new virions in the cytoplasm
  6. Cell lysis and virion release in the extracellular space.

Matching UniProtKB/Swiss-Prot entries

23 entries grouped by strain (browse by keywords)

All proteins are shown (view only 16 complete proteome entries)

16 entries

Paramecium bursaria Chlorella virus 1 (PBCV-1) reference strain

THYX_PBCV1 Probable flavin-dependent thymidylate synthase (FDTS) (EC (FAD-dependent thymidylate ...
Y445_PBCV1 Uncharacterized protein A445L
Y284L_PBCV1 Uncharacterized protein A284L
A464_PBCV1 Putative protein A464R
A625_PBCV1 Putative transposase A625R
DPOL_PBCV1 DNA polymerase (EC
DUT_PBCV1 Deoxyuridine 5'-triphosphate nucleotidohydrolase (dUTPase) (EC (dUTP pyrophosphatase)
PCNA1_PBCV1 Probable DNA polymerase sliding clamp 1 (Proliferating cell nuclear antigen homolog 1) (PCNA 1)
PCNA2_PBCV1 Probable DNA polymerase sliding clamp 2 (Proliferating cell nuclear antigen homolog 2) (PCNA 2)
KCV_PBCV1 Potassium channel protein kcv
MCP_PBCV1 Major capsid protein (MCP) (VP54)
MCE_PBCV1 mRNA-capping enzyme (GTP--RNA guanylyltransferase) (mRNA guanylyltransferase) (EC
MTC2_PBCV1 Modification methylase CviAII (M.CviAII) (EC (Adenine-specific methyltransferase CviAII)
SODC_PBCV1 Superoxide dismutase [Cu-Zn] (EC
T2C2_PBCV1 Type-2 restriction enzyme CviAII (R.CviAII) (EC (Endonuclease CviAII) (Type II restriction ...
Y494R_PBCV1 Putative transcription factor A494R

2 entries

Paramecium bursaria Chlorella virus IL3A (PBCV-IL3A)

MTC1_PBCVI Modification methylase CviJI (M.CviJI) (EC (Cytosine-specific methyltransferase CviJI)
T2C1_PBCVI Type-2 restriction enzyme CviJI (R.CviJI) (EC (Endonuclease CviJI) (Type II restriction ...

2 entries

Paramecium bursaria Chlorella virus NC1A (PBCV-NC1A)

MTC1_PBCVC Modification methylase CviBI (M.CviBI) (EC (Adenine-specific methyltransferase CviBI)
MTC3_PBCVC Modification methylase CviBIII (M.CviBIII) (EC (Adenine-specific methyltransferase ...

2 entries

Paramecium bursaria Chlorella virus NY2A (PBCV-NY2A)

DPOL_PBCVN DNA polymerase (EC
Y663R_PBCVN Putative transcription factor B663R

1 entry

Paramecium bursaria Chlorella virus XZ-6E (PBCV-XZ-6E)

MTR1_PBCVX Modification methylase CviRI (M.CviRI) (EC (Adenine-specific methyltransferase CviRI)