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4KNF

Crystal structure of a blue-light absorbing proteorhodopsin double-mutant D97N/Q105L from HOT75

Functional Information from GO Data
ChainGOidnamespacecontents
A0006811biological_processmonoatomic ion transport
A0010461molecular_functionlight-activated monoatomic ion channel activity
A0016020cellular_componentmembrane
B0006811biological_processmonoatomic ion transport
B0010461molecular_functionlight-activated monoatomic ion channel activity
B0016020cellular_componentmembrane
C0006811biological_processmonoatomic ion transport
C0010461molecular_functionlight-activated monoatomic ion channel activity
C0016020cellular_componentmembrane
D0006811biological_processmonoatomic ion transport
D0010461molecular_functionlight-activated monoatomic ion channel activity
D0016020cellular_componentmembrane
E0006811biological_processmonoatomic ion transport
E0010461molecular_functionlight-activated monoatomic ion channel activity
E0016020cellular_componentmembrane
Functional Information from PDB Data
site_idAC1
Number of Residues13
DetailsBINDING SITE FOR RESIDUE RET A 301
ChainResidue
ATYR95
ATYR204
ATYR224
AASP228
ALYS232
ATRP98
ATHR101
AVAL102
AMET134
AGLY138
ATRP159
ATRP197
ATYR200

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE RET B 301
ChainResidue
BTRP98
BTHR101
BVAL102
BMET134
BGLY138
BTRP197
BTYR200
BTYR204
BLYS232

site_idAC3
Number of Residues9
DetailsBINDING SITE FOR RESIDUE RET C 301
ChainResidue
CTRP98
CTHR101
CVAL102
CMET134
CGLY138
CTRP197
CTYR200
CTYR224
CLYS232

site_idAC4
Number of Residues10
DetailsBINDING SITE FOR RESIDUE RET D 301
ChainResidue
DTRP98
DTHR101
DVAL102
DMET134
DGLY138
DGLY155
DTRP159
DTRP197
DTYR200
DLYS232

site_idAC5
Number of Residues9
DetailsBINDING SITE FOR RESIDUE RET E 301
ChainResidue
ETRP98
ETHR101
EVAL102
EMET134
EGLY138
ETRP159
ETRP197
ETYR200
ELYS232

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues680
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues5
DetailsSite: {"description":"Primary proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues5
DetailsSite: {"description":"Responsible for spectral tuning"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues5
DetailsSite: {"description":"Primary proton donor"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues5
DetailsModified residue: {"description":"N6-(retinylidene)lysine","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

243083

PDB entries from 2025-10-15

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