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. Coccolithovirus have an outer membrane



Linear, dsDNA genome of 100-560 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. The viral genome can enter latency by integrating in host chromosome.
  4. Synthesis of early proteins.
  5. Replication of genomic DNA.
  6. Late proteins synthesis, assembly of new virions in the cytoplasm
  7. Cell lysis and virion release in the extracellular space.

Matching UniProtKB/Swiss-Prot entries

29 entries grouped by strain (browse by keywords)

16 entries

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

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

1 entry

Paramecium bursaria Chlorella virus NY2A (PBCV-NY2A) reference strain

Y663R_PBCVN Putative transcription factor B663R

2 entries

Chrysochromulina ericina virus (CeV01)

DPOL_CEV01 DNA polymerase (EC [Cleaved into: CeV01 dpo intein]
MCP_CEV01 Major capsid protein (MCP)

2 entries

Paramecium bursaria Chlorella virus IL3A (PBCV-IL3A)

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

2 entries

Paramecium bursaria Chlorella virus NC1A (PBCV-NC1A)

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

1 entry

Paramecium bursaria Chlorella virus NY2A (PBCV-NY2A)

DPOL_PBCVN DNA polymerase (EC

2 entries

Phaeocystis pouchetii virus (PpV01)

DPOL_PPV01 DNA polymerase (EC
MCP_PPV01 Major capsid protein (MCP)

2 entries

Pyramimonas orientalis virus (PoV01)

DPOL_POV01 DNA polymerase (EC
MCP_POV01 Major capsid protein (MCP)

1 entry

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

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