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4QKY

Crystal Structure Analysis of the Membrane Transporter FhaC

Replaces:  2QDZ
Functional Information from GO Data
ChainGOidnamespacecontents
A0006811biological_processmonoatomic ion transport
A0008320molecular_functionprotein transmembrane transporter activity
A0009279cellular_componentcell outer membrane
A0015031biological_processprotein transport
A0015288molecular_functionporin activity
A0046819biological_processprotein secretion by the type V secretion system
A0046930cellular_componentpore complex
A0098046cellular_componenttype V protein secretion system complex
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE PO4 A 601
ChainResidue
APRO160
ALEU276
AGLY277
AARG278
AARG316

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues151
DetailsTransmembrane: {"description":"Beta stranded","evidences":[{"source":"PubMed","id":"17702945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues75
DetailsDomain: {"description":"POTRA","evidences":[{"source":"PROSITE-ProRule","id":"PRU01115","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues20
DetailsRegion: {"description":"Alpha helix H1, not required for FHA secretion","evidences":[{"source":"PubMed","id":"17702945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues75
DetailsRegion: {"description":"POTRA 1; required for FHA secretion but not channel formation","evidences":[{"evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"17702945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues73
DetailsRegion: {"description":"POTRA 2; required for FHA secretion but not channel formation","evidences":[{"evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"17702945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues42
DetailsRegion: {"description":"Loop L6, required for FHA secretion and possibly for channel stability","evidences":[{"source":"PubMed","id":"17702945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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