id: Pfam:PF09931
pfam_id: PF09931
name: Baseplate hub protein, N-terminal attachment domain
short_name: Phage_phiJL001_Gp84_N
seed_status: EX_DUF
characterization_status: UNSCORED
curation_status: SEEDED
source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/PF09931
counters:
  proteins: 2302
  matches: 2303
  proteomes: 1940
  taxa: 3191
  structures: 6
  alphafold_models: 1505
  domain_architectures: 12
provenance:
  snapshot_id: interpro-pfam-duf-2026-10-10
  path: data/worklists/interpro-pfam-duf-2026-10-10.json
  sha256: 17fb625876c9326ed284263a47bcd84e0d7844a31c040dc06cd2260c36f1c383
  generated_at: '2026-10-10T07:44:21.614711Z'
  source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/
description: This entry represents the N-terminal attachment domain (residues 1-142) of the baseplate
  hub protein found in phages and gene transfer agents [[cite:PUB00153971]]. This domain is part of a
  multi-domain protein that also contains an ion-binding domain (143-167, 250-263), an oligosaccharide-binding
  domain (168-249), and a C-terminal clip domain (264-296). The attachment domain enables binding to the
  distal tail proteins and helps anchor the hub protein within the baseplate structure. This family is
  found almost exclusively in phages and prophage regions of bacterial genomes, including the Rhodobacter
  capsulatus gene transfer agent.