id: Pfam:PF11152
pfam_id: PF11152
name: Cofactor assembly of complex C subunit B, CCB2/CCB4
short_name: CCB2_CCB4
seed_status: EX_DUF
characterization_status: UNSCORED
curation_status: SEEDED
source_url: https://www.ebi.ac.uk/interpro/api/entry/pfam/PF11152
counters:
  proteins: 1618
  matches: 1658
  proteomes: 708
  taxa: 1973
  structures: 0
  alphafold_models: 1249
  domain_architectures: 32
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:IPR021325
description: 'Cofactor maturation pathways such as the CCB system (system IV) for cytochrome c-heme attachment
  are conserved in all organisms performing oxygenic photosynthesis [[cite:PUB00075312]]. The CCB system
  consists of four proteins: CCB1-4. CCB2 and CCB4 are paralogues derived from a unique cyanobacterial
  ancestor [[cite:PUB00075312]]. Orthologues are conserved in higher plants [[cite:PUB00075315]].'