Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

2ZT9

Crystal Structure of the Cytochrome b6f Complex from Nostoc sp. PCC 7120

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0009055	molecular_function	electron transfer activity
A	0009579	cellular_component	thylakoid
A	0015979	biological_process	photosynthesis
A	0016020	cellular_component	membrane
A	0016491	molecular_function	oxidoreductase activity
A	0022904	biological_process	respiratory electron transport chain
A	0031676	cellular_component	plasma membrane-derived thylakoid membrane
A	0042651	cellular_component	thylakoid membrane
A	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
A	0046872	molecular_function	metal ion binding
B	0009055	molecular_function	electron transfer activity
B	0009579	cellular_component	thylakoid
B	0009767	biological_process	photosynthetic electron transport chain
B	0015979	biological_process	photosynthesis
B	0016020	cellular_component	membrane
B	0016491	molecular_function	oxidoreductase activity
B	0031676	cellular_component	plasma membrane-derived thylakoid membrane
B	0042651	cellular_component	thylakoid membrane
B	0043229	cellular_component	intracellular organelle
B	0045156	molecular_function	electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
B	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
C	0005506	molecular_function	iron ion binding
C	0009055	molecular_function	electron transfer activity
C	0009579	cellular_component	thylakoid
C	0015979	biological_process	photosynthesis
C	0016020	cellular_component	membrane
C	0020037	molecular_function	heme binding
C	0031676	cellular_component	plasma membrane-derived thylakoid membrane
C	0042651	cellular_component	thylakoid membrane
C	0043229	cellular_component	intracellular organelle
C	0046872	molecular_function	metal ion binding
D	0009496	molecular_function	plastoquinol--plastocyanin reductase activity
D	0009579	cellular_component	thylakoid
D	0015979	biological_process	photosynthesis
D	0016020	cellular_component	membrane
D	0031676	cellular_component	plasma membrane-derived thylakoid membrane
D	0042651	cellular_component	thylakoid membrane
D	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
D	0046872	molecular_function	metal ion binding
D	0051537	molecular_function	2 iron, 2 sulfur cluster binding
D	0055085	biological_process	transmembrane transport
E	0009055	molecular_function	electron transfer activity
E	0009512	cellular_component	cytochrome b6f complex
E	0009579	cellular_component	thylakoid
E	0015979	biological_process	photosynthesis
E	0016020	cellular_component	membrane
E	0031676	cellular_component	plasma membrane-derived thylakoid membrane
E	0042651	cellular_component	thylakoid membrane
E	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
F	0009055	molecular_function	electron transfer activity
F	0009512	cellular_component	cytochrome b6f complex
F	0009579	cellular_component	thylakoid
F	0015979	biological_process	photosynthesis
F	0016020	cellular_component	membrane
F	0031676	cellular_component	plasma membrane-derived thylakoid membrane
F	0042651	cellular_component	thylakoid membrane
G	0009512	cellular_component	cytochrome b6f complex
G	0009579	cellular_component	thylakoid
G	0015979	biological_process	photosynthesis
G	0016020	cellular_component	membrane
G	0017004	biological_process	cytochrome complex assembly
G	0031676	cellular_component	plasma membrane-derived thylakoid membrane
G	0042651	cellular_component	thylakoid membrane
G	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity
H	0009055	molecular_function	electron transfer activity
H	0009512	cellular_component	cytochrome b6f complex
H	0009579	cellular_component	thylakoid
H	0015979	biological_process	photosynthesis
H	0016020	cellular_component	membrane
H	0017004	biological_process	cytochrome complex assembly
H	0031676	cellular_component	plasma membrane-derived thylakoid membrane
H	0042651	cellular_component	thylakoid membrane
H	0043229	cellular_component	intracellular organelle
H	0045158	molecular_function	electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity

Functional Information from PDB Data

site_id	AC1
Number of Residues	14
Details	BINDING SITE FOR RESIDUE HEM A 301

Chain	Residue
A	GLN47
A	PHE131
A	GLY135
A	PRO139
A	HIS187
A	PHE189
A	PHE48
A	GLY51
A	MET54
A	ARG83
A	HIS86
A	ARG87
A	ALA90
A	MET93

site_id	AC2
Number of Residues	21
Details	BINDING SITE FOR RESIDUE HEM A 302

Chain	Residue
A	TYR34
A	GLY37
A	GLY38
A	THR40
A	LEU41
A	MET93
A	HIS100
A	VAL101
A	ARG103
A	VAL104
A	GLY109
A	TRP118
A	GLY121
A	VAL122
A	HIS202
A	PHE203
A	ILE206
A	ILE211
A	SER212
A	HEM303
A	HOH401

site_id	AC3
Number of Residues	13
Details	BINDING SITE FOR RESIDUE HEM A 303

Chain	Residue
A	TYR34
A	CYS35
A	GLY38
A	LEU41
A	ILE206
A	ARG207
A	GLY210
A	ILE211
A	HEM302
A	HOH401
B	VAL39
B	PHE40
H	ARG26

site_id	AC4
Number of Residues	18
Details	BINDING SITE FOR RESIDUE HEM C 301

Chain	Residue
C	TYR1
C	PRO2
C	TRP4
C	CYS22
C	CYS25
C	HIS26
C	GLN60
C	LEU70
C	ASN71
C	VAL72
C	GLY73
C	ASN154
C	GLY156
C	ARG157
C	GLY158
C	VAL160
C	TYR161
C	PRO162

site_id	AC5
Number of Residues	6
Details	BINDING SITE FOR RESIDUE FES D 200

Chain	Residue
D	CYS108
D	HIS110
D	LEU111
D	CYS126
D	HIS129
D	SER131

site_id	AC6
Number of Residues	12
Details	BINDING SITE FOR RESIDUE CLA B 201

Chain	Residue
A	ILE98
A	PHE102
A	TYR105
B	TYR80
B	VAL84
B	ILE87
B	MET101
B	PHE133
B	GLY136
B	THR140
B	OPC202
B	HOH211

site_id	AC7
Number of Residues	13
Details	BINDING SITE FOR RESIDUE BCR G 101

Chain	Residue
A	ILE32
A	PHE33
A	ILE39
A	LEU99
F	ILE16
F	TRP20
G	VAL16
G	ALA19
G	GLY20
G	TYR23
H	PHE15
H	ILE19
H	OPC30

site_id	AC8
Number of Residues	9
Details	BINDING SITE FOR RESIDUE OPC B 202

Chain	Residue
B	ILE114
B	GLU115
B	ASN118
B	ARG126
B	VAL128
B	ALA129
B	CLA201
B	SER103
B	VAL111

site_id	AC9
Number of Residues	11
Details	BINDING SITE FOR RESIDUE OPC H 30

Chain	Residue
A	MET92
C	PRO37
C	GLN38
E	TYR7
E	ILE8
F	SER12
G	LEU5
G	BCR101
H	MET1
H	TRP8
H	LEU12

site_id	BC1
Number of Residues	8
Details	BINDING SITE FOR RESIDUE UMQ A 304

Chain	Residue
A	GLU75
A	VAL76
A	ASN77
A	PHE78
A	TRP80
C	ASN253
C	ARG254
C	TRP257

site_id	BC2
Number of Residues	4
Details	BINDING SITE FOR RESIDUE UMQ A 305

Chain	Residue
A	ASN3
A	TYR5
A	UMQ306
B	SQD203

site_id	BC3
Number of Residues	8
Details	BINDING SITE FOR RESIDUE UMQ A 306

Chain	Residue
A	GLN15
A	ALA18
A	GLU19
A	THR22
A	UMQ305
B	TRP32
B	SQD203
C	ASN288

site_id	BC4
Number of Residues	8
Details	BINDING SITE FOR RESIDUE SQD B 203

Chain	Residue
A	UMQ305
A	UMQ306
B	TRP32
B	PRO33
C	LYS275
D	ARG16
D	ASN20
D	THR28

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	20
Details	TRANSMEM: Helical => ECO:0000255

Chain	Residue	Details
H	ILE3-VAL23
B	LEU95-GLU115
B	THR131-LEU151
A	ALA186-ILE206

site_id	SWS_FT_FI2
Number of Residues	4
Details	BINDING: BINDING => ECO:0000255\|HAMAP-Rule:MF_01335

Chain	Residue	Details
D	CYS108
D	HIS110
D	CYS126
D	HIS129

site_id	SWS_FT_FI3
Number of Residues	2
Details	BINDING: covalent => ECO:0000255\|HAMAP-Rule:MF_00610

Chain	Residue	Details
C	CYS22
C	CYS25
A	HIS187
A	HIS202

		Sequence (fasta)
		PDBx/mmCIF
		PDBML format (no-atom)
		PDB format (full)
		Validation report (PDF)
		EDMap 2fo-fc (MTZ)