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3MG2

Crystal structure of the orange carotenoid protein Y44S mutant from cyanobacteria synechocystis sp. PCC 6803

Replaces:  3I1W
Functional Information from GO Data
ChainGOidnamespacecontents
A0005515molecular_functionprotein binding
A0009881molecular_functionphotoreceptor activity
A0016037biological_processlight absorption
A0030076cellular_componentlight-harvesting complex
A0030089cellular_componentphycobilisome
A0031404molecular_functionchloride ion binding
A0031676cellular_componentplasma membrane-derived thylakoid membrane
B0005515molecular_functionprotein binding
B0009881molecular_functionphotoreceptor activity
B0016037biological_processlight absorption
B0030076cellular_componentlight-harvesting complex
B0030089cellular_componentphycobilisome
B0031404molecular_functionchloride ion binding
B0031676cellular_componentplasma membrane-derived thylakoid membrane
Functional Information from PDB Data
site_idAC1
Number of Residues16
DetailsBINDING SITE FOR RESIDUE ECH A 351
ChainResidue
AILE40
ALEU248
AVAL273
ATHR275
APHE278
AMET284
ATRP288
AILE303
ASER44
ALEU107
ATRP110
AGLY114
AARG155
AVAL158
ATYR201
ACYS245

site_idAC2
Number of Residues18
DetailsBINDING SITE FOR RESIDUE ECH B 351
ChainResidue
BILE40
BSER44
BTRP110
BTYR111
BGLY114
BILE151
BTHR152
BARG155
BVAL158
BTYR201
BCYS245
BVAL273
BTHR275
BTRP277
BPHE278
BMET284
BTRP288
BILE303

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues22
DetailsBinding site: {"description":"only in form RCP","evidences":[{"source":"PubMed","id":"26113721","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues34
DetailsBinding site: {"description":"in forms OCP and RCP","evidences":[{"source":"PubMed","id":"20368334","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"26113721","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues20
DetailsBinding site: {"description":"residues alter contact in forms OCP and RCP","evidences":[{"source":"PubMed","id":"20368334","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"26113721","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues36
DetailsBinding site: {"description":"only in form OCP","evidences":[{"source":"PubMed","id":"20368334","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"26113721","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246031

PDB entries from 2025-12-10

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