Protein Family Models for Protein (Select 505960708) - Protein Family Models

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Items: 4

Select item 4139711.

terminase small subunit

Packaging of double-stranded viral DNA concatemers requires interaction of the prohead with virus DNA. This process is mediated by a phage-encoded DNA recognition and terminase protein. The terminase enzymes described so far, which are hetero-oligomers composed of a small and a large subunit, do not have a significant level of sequence homology. The small terminase subunit is thought to form a nucleoprotein structure that helps to position the terminase large subunit at the packaging initiation site [1]. [1]. 2679356. DNA packaging in dsDNA bacteriophages. Black LW;. Annu Rev Microbiol 1989;43:267-292. (from Pfam)

GO Terms:

Biological Process:: chromosome organization (GO:0051276)

Date:: 2024-10-16

Family Accession:: NF015550.5
Method:: HMM

Select item 3913772.

new record, indexing in progress

Family Accession:

Select item 3489953.

new record, indexing in progress

Family Accession:

Select item 431194.

terminase small subunit

terminase small subunit binds to the packaging signal on phage DNA, allowing the terminase large subunit to cleave the DNA and thread it through the portal protein channel into the procapsid, powered by ATP hydrolysis