Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

4H44

2.70 A Cytochrome b6f Complex Structure From Nostoc 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	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	0046872	molecular_function	metal ion binding
D	0005886	cellular_component	plasma membrane
D	0009496	molecular_function	plastoquinol--plastocyanin reductase activity
D	0009579	cellular_component	thylakoid
D	0015979	biological_process	photosynthesis
D	0016020	cellular_component	membrane
D	0016491	molecular_function	oxidoreductase activity
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	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	17
Details	BINDING SITE FOR RESIDUE HEM A 301

Chain	Residue
A	GLN47
A	THR128
A	PHE131
A	GLY135
A	LEU138
A	PRO139
A	HIS187
A	PHE189
A	HOH422
A	PHE48
A	GLY51
A	PHE52
A	MET54
A	ARG83
A	HIS86
A	ARG87
A	ALA90

site_id	AC2
Number of Residues	25
Details	BINDING SITE FOR RESIDUE HEM A 302

Chain	Residue
A	TYR34
A	GLY37
A	GLY38
A	THR40
A	MET93
A	HIS100
A	VAL101
A	ARG103
A	VAL104
A	GLY109
A	ARG114
A	THR117
A	TRP118
A	GLY121
A	VAL122
A	MET199
A	HIS202
A	PHE203
A	ILE206
A	ILE211
A	SER212
A	HEM303
A	HOH401
A	HOH409
A	HOH413

site_id	AC3
Number of Residues	17
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	UMQ307
A	HOH401
A	HOH416
A	HOH425
A	HOH426
B	VAL39
B	PHE40
H	ARG26

site_id	AC4
Number of Residues	6
Details	BINDING SITE FOR RESIDUE UMQ A 304

Chain	Residue
A	ASN3
A	TYR5
A	ILE17
A	ALA18
A	UMQ305
D	SQD201

site_id	AC5
Number of Residues	8
Details	BINDING SITE FOR RESIDUE UMQ A 305

Chain	Residue
A	ALA18
A	GLU19
A	THR22
A	UMQ304
A	UMQ307
B	TRP32
C	ASN288
D	SQD201

site_id	AC6
Number of Residues	2
Details	BINDING SITE FOR RESIDUE MYS A 306

Chain	Residue
A	SER130
B	CLA201

site_id	AC7
Number of Residues	8
Details	BINDING SITE FOR RESIDUE UMQ A 307

Chain	Residue
A	LYS24
A	ARG207
A	HEM303
A	UMQ305
A	HOH407
B	ALA31
B	LEU36
B	PHE40

site_id	AC8
Number of Residues	4
Details	BINDING SITE FOR RESIDUE UMQ A 309

Chain	Residue
A	MET1
A	ALA2
A	VAL4
A	TRP7

site_id	AC9
Number of Residues	20
Details	BINDING SITE FOR RESIDUE CLA B 201

Chain	Residue
B	GLY136
B	VAL139
B	THR140
B	OPC202
B	HOH301
B	HOH306
B	HOH318
F	UMQ101
A	ILE98
A	PHE102
A	TYR105
A	ALA125
A	VAL129
A	MYS306
B	TYR80
B	PRO83
B	VAL84
B	LEU108
B	VAL132
B	PHE133

site_id	BC1
Number of Residues	13
Details	BINDING SITE FOR RESIDUE OPC B 202

Chain	Residue
A	TYR105
B	ILE87
B	SER103
B	VAL104
B	GLY107
B	ILE114
B	GLU115
B	ASN118
B	ARG126
B	VAL128
B	ALA129
B	CLA201
B	HOH304

site_id	BC2
Number of Residues	20
Details	BINDING SITE FOR RESIDUE HEM C 301

Chain	Residue
C	TYR1
C	PRO2
C	TRP4
C	ALA5
C	CYS22
C	CYS25
C	HIS26
C	GLN60
C	LEU70
C	ASN71
C	VAL72
C	GLY73
C	ALA74
C	ASN154
C	GLY156
C	ARG157
C	GLY158
C	VAL160
C	TYR161
C	HOH440

site_id	BC3
Number of Residues	11
Details	BINDING SITE FOR RESIDUE OPC C 302

Chain	Residue
C	PRO37
C	GLN38
C	SER39
E	ALA3
E	TYR7
F	GLU4
F	LEU11
G	BCR101
H	MET1
H	LEU12
H	PHE15

site_id	BC4
Number of Residues	7
Details	BINDING SITE FOR RESIDUE 7PH C 303

Chain	Residue
A	PHE78
B	VAL52
C	ASP251
C	TRP257
D	GLY33
D	ALA34
D	TYR36

site_id	BC5
Number of Residues	2
Details	BINDING SITE FOR RESIDUE CD C 304

Chain	Residue
A	ASN74
C	HIS143

site_id	BC6
Number of Residues	8
Details	BINDING SITE FOR RESIDUE SQD D 201

Chain	Residue
A	UMQ304
A	UMQ305
B	TRP32
B	TYR38
B	HOH305
C	LYS275
D	ARG16
D	ASN20

site_id	BC7
Number of Residues	6
Details	BINDING SITE FOR RESIDUE FES D 202

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

site_id	BC8
Number of Residues	10
Details	BINDING SITE FOR RESIDUE UMQ F 101

Chain	Residue
B	THR140
B	LEU141
B	ILE145
B	LEU149
B	CLA201
F	MET1
F	SER2
F	LEU5
G	VAL2
G	SER7

site_id	BC9
Number of Residues	2
Details	BINDING SITE FOR RESIDUE OCT F 102

Chain	Residue
F	TRP20
F	ALA24

site_id	CC1
Number of Residues	11
Details	BINDING SITE FOR RESIDUE BCR G 101

Chain	Residue
A	PHE33
A	ILE39
A	MET96
C	OPC302
F	ILE16
G	VAL16
G	ALA19
G	GLY20
G	TYR23
H	SER18
H	ILE19

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)