HMM Summary Page: TIGR01538

Functionphage portal protein, SPP1 family
Trusted Cutoff165.85
Domain Trusted Cutoff165.85
Noise Cutoff38.35
Domain Noise Cutoff38.35
Isology Typeequivalog
HMM Length426
Mainrole CategoryMobile and extrachromosomal element functions
Subrole CategoryProphage functions
Gene Ontology TermGO:0005198: structural molecule activity molecular_function
GO:0046798: viral portal complex cellular_component
GO:0051027: DNA transport biological_process
AuthorFouts DE, Haft DH
Entry DateJun 7 2002 4:17PM
Last ModifiedFeb 14 2011 3:27PM
CommentThis HMM represents one of several distantly related families of phage portal protein. This protein forms a hole, or portal, that enables DNA passage during packaging and ejection. It also forms the junction between the phage head (capsid) and the tail proteins. It functions as a dodecamer of a single polypeptide of average mol. wt. of 40-90 KDa.
ReferencesRM 10467096 RT Structure of the 13-fold symmetric portal protein of bacteriophage SPP1. RA Orlova EV, Dube P, Beckmann E, Zemlin F, Lurz R, Trautner TA, Tavares P, van Heel M. RL Nat Struct Biol 1999 Sep;6(9):842-6
Genome PropertyGenProp0208: phage: major features (HMM)