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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]].","domain_architectures":3,"interpro_id":"IPR021308","known_evidence_count":null,"matches":1487,"name":"Group 4 capsule polysaccharide lipoprotein gfcB, YjbF","partial_evidence_count":null,"pfam_id":"PF11102","proteins":1487,"proteomes":1355,"short_name":"YjbF","source_url":"https://www.ebi.ac.uk/interpro/api/entry/pfam/PF11102","structures":1,"taxa":1884,"unknown_status":"EX_DUF"},"inputs":{"cross_mech":"cross-mech-duf-examples-2026-10-10","members":"pfam-uniprot-uniref90-2026-10-07","protein_examples":"duf-protein-examples-2026-10-13","worklist":"interpro-pfam-duf-2026-10-10"},"members":[],"metadata":{"curation_status":"SEEDED","local_source":"source/data/families/PF11102.yaml","record":{"characterization_status":"UNSCORED","counters":{"alphafold_models":951,"domain_architectures":3,"matches":1487,"proteins":1487,"proteomes":1355,"structures":1,"taxa":1884},"curation_status":"SEEDED","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]].","id":"Pfam:PF11102","interpro_id":"InterPro:IPR021308","name":"Group 4 capsule polysaccharide lipoprotein gfcB, 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