Ontology highlight
ABSTRACT:
SUBMITTER: Dearborn AD
PROVIDER: S-EPMC3361666 | biostudies-literature | 2012 Jun
REPOSITORIES: biostudies-literature
Journal of structural biology 20120409 3
Bacteriophage P4 is dependent on structural proteins supplied by a helper phage, P2, to assemble infectious virions. Bacteriophage P2 normally forms an icosahedral capsid with T=7 symmetry from the gpN capsid protein, the gpO scaffolding protein and the gpQ portal protein. In the presence of P4, however, the same structural proteins are assembled into a smaller capsid with T=4 symmetry. This size determination is effected by the P4-encoded protein Sid, which forms an external scaffold around the ...[more]