id: Pfam:PF09909
pfam_id: PF09909
name: Uncharacterized protein conserved in bacteria (DUF2138)
short_name: DUF2138
seed_status: KNOWN_HISTORICAL_DUF
characterization_status: UNSCORED
curation_status: SEEDED
source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/PF09909
counters:
  proteins: 286
  matches: 292
  proteomes: 286
  taxa: 385
  structures: 0
  alphafold_models: 152
  domain_architectures: 2
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:IPR018671
description: This entry includes uncharacterised protein YfaA from Escherichia coli (strain K12). This
  protein has a fold that seems to be a a fusion of membrane permeability and extracellular sensor domains
  according to DALI pairwise alignment of PDBe:eszA, PDBe:3k8hA and PDBe:4esqA structures [[cite:PUB00152793]].
  This suggests that the protein could serve as a signaling device.