6T6O

Y201W mutant of the orange carotenoid protein from Synechocystis at pH 4.6

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0005515	molecular_function	protein binding
A	0009579	cellular_component	thylakoid
A	0009881	molecular_function	photoreceptor activity
A	0016020	cellular_component	membrane
A	0016037	biological_process	light absorption
A	0030089	cellular_component	phycobilisome
A	0031404	molecular_function	chloride ion binding
A	0031676	cellular_component	plasma membrane-derived thylakoid membrane

Functional Information from PDB Data

site_id	AC1
Number of Residues	8
Details	binding site for residue ASN A 401

Chain	Residue
A	ARG27
A	ALA137
A	THR141
A	LEU312
A	LEU313
A	HOH530
A	HOH753
A	HOH821

---

site_id	AC2
Number of Residues	20
Details	binding site for residue ECH A 402

Chain	Residue
A	TYR44
A	ILE53
A	LEU107
A	TRP110
A	TYR111
A	GLY114
A	ILE151
A	THR152
A	ARG155
A	VAL158
A	TRP201
A	LEU205
A	CYS245
A	LEU250
A	VAL273
A	THR275
A	TRP277
A	MET284
A	TRP288
A	ILE40

---

site_id	AC3
Number of Residues	2
Details	binding site for residue CL A 403

Chain	Residue
A	THR275
A	HOH596

---

site_id	AC4
Number of Residues	10
Details	binding site for residue GOL A 404

Chain	Residue
A	ALA55
A	PRO56
A	GLY57
A	GLU174
A	PRO276
A	TRP277
A	HOH567
A	HOH568
A	HOH611
A	HOH678

---

site_id	AC5
Number of Residues	5
Details	binding site for residue HIS A 405

Chain	Residue
A	GLN119
A	GLY120
A	ASP211
A	ILE214
A	GLU215

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	3
Details	BINDING: only in form RCP => ECO:0000269|PubMed:26113721

Chain	Residue	Details
A	GLU34
A	THR80
A	ILE125

---

site_id	SWS_FT_FI2
Number of Residues	2
Details	BINDING: in forms OCP and RCP => ECO:0000269|PubMed:20368334, ECO:0000269|PubMed:26113721

Chain	Residue	Details
A	LEU37
A	LEU107

---

site_id	SWS_FT_FI3
Number of Residues	1
Details	BINDING: residues alter contact in forms OCP and RCP => ECO:0000269|PubMed:20368334, ECO:0000269|PubMed:26113721

Chain	Residue	Details
A	ILE151

---

site_id	SWS_FT_FI4
Number of Residues	4
Details	BINDING: only in form OCP => ECO:0000269|PubMed:20368334, ECO:0000269|PubMed:26113721

Chain	Residue	Details
A	TRP201
A	CYS245
A	VAL273
A	TRP288

---