id: Pfam:PF13262
pfam_id: PF13262
name: E217 head-to-tail connector protein gp27-like
short_name: E217_gp27
seed_status: EX_DUF
characterization_status: UNSCORED
curation_status: SEEDED
source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/PF13262
counters:
  proteins: 946
  matches: 947
  proteomes: 868
  taxa: 1880
  structures: 8
  alphafold_models: 371
  domain_architectures: 3
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/
interpro_id: InterPro:IPR025127
description: This entry, previously know as DUF4054, represents Pseudomonas bacteriophage E217 head-to-tail
  connector protein gp27 and related proteins, including bacteriophage T1 adaptor protein gp45 [[cite:PUB00153918],[cite:PUB00163740]].
  Twelve copies of the head-to-tail adaptor gp27 assemble on the portal dodecamer [[cite:PUB00153918]].
  Gp27 assembles to the portal by inserting its extended C-terminal tail at the interface generated by
  two portal subunits, suggesting the head-to-tail connector oligomerizes upon binding instead of existing
  as a pre-formed ring [[cite:PUB00153918]].