id: Pfam:PF11102
pfam_id: PF11102
name: Group 4 capsule polysaccharide lipoprotein gfcB, YjbF
short_name: YjbF
seed_status: EX_DUF
characterization_status: UNSCORED
curation_status: SEEDED
source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/PF11102
counters:
  proteins: 1487
  matches: 1487
  proteomes: 1355
  taxa: 1884
  structures: 1
  alphafold_models: 951
  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:IPR021308
description: This family includes lipoprotein GfcB (YmcC), involved in group 4 capsule polysaccharide
  formation [[cite:PUB00066719]]. YjbF is a family of Gram-negative bacterial outer-membrane lipoproteins,
  predicted to be a beta-barrel and possibly a porin that is one of four gene-products expressed from
  an operon, yjbEFGH, which is regulated by the Rcs phosphorelay in a RcsA-dependent manner, similar to
  that of other exopolysaccharide biosynthetic pathways. It is highly possible that the yjbEFGH operon
  encodes a system involved in EPS secretion since none of the products is predicted to have enzymic activity,
  the products are all secreted and YbjF and H are predicted to be beta-barrel lipoproteins similar to
  porins. It may be that the operon products play some role in biofilm formation and/or matrix production
  [[cite:PUB00066719]].