Structure of PDB 5kli Chain K

Receptor sequence

>5kliK (length=428) Species: 1063 (Cereibacter sphaeroides) [Search protein sequence]

GIPHDHYEPRTGIEKWLHSRLPIVALAYDTIMIPTPRNLNWMWIWGVVLA
FCLVLQIVTGIVLAMHYTPHVDLAFASVEHIMRNVNGGFMLRYLHANGAS
LFFIAVYLHIFRGLYYGSYKAPREVTWIVGMLIYLAMMATAFMGYVLPWG
QMSFWGATVITGLFGAIPGIGHSIQTWLLGGPAVDNATLNRFFSLHYLLP
FVIAALVAIHIWAFHSTGNNNPTGVEVRRTSKAEAQKDTVPFWPYFIIKD
VFALAVVLLVFFAIVGFMPNYLGHPDNYIEANPLSTPAHIVPEWYFLPFY
AILRAFTADVWVVQIANFISFGIIDAKFFGVLAMFGAILVMALVPWLDTS
PVRSGRYRPMFKIYFWLLAADFVILTWVGAQQTTFPYDWISLIASAYWFA
YFLVILPILGAIEKPVAPPATIEEDFNA

3D structure

PDB

5kli Hydrogen Bonding to the Substrate Is Not Required for Rieske Iron-Sulfur Protein Docking to the Quinol Oxidation Site of Complex III.

Chain

Resolution

2.996 Å

3D
structure

Catalytic site residues are labeled in the structure
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Enzymatic activity

Catalytic site (original residue number in PDB)	H217 N221 K251 D252
Catalytic site (residue number reindexed from 1)	H215 N219 K249 D250
Enzyme Commision number	?

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)
BS01	HEM	K	Q58 G62 L65 A66 R94 H97 T142 G146 L149 P150 H198 Y199 P202	Q56 G60 L63 A64 R92 H95 T140 G144 L147 P148 H196 Y197 P200
BS02	HEM	K	W45 G48 L51 A52 F104 H111 R114 S120 R125 G132 V209 H212 F216 N221 N222	W43 G46 L49 A50 F102 H109 R112 S118 R123 G130 V207 H210 F214 N219 N220
BS03	SMA	K	M140 F144 M145 G158 V161 I162 P294 F298 Y302 M336	M138 F142 M143 G156 V159 I160 P292 F296 Y300 M334
BS04	ANJ	K	L41 W45 V49 A52 I213 F216 N221 F244 D252	L39 W43 V47 A50 I211 F214 N219 F242 D250
BS05	LOP	K	L110 F113 Y117 Y118 R358 F367	L108 F111 Y115 Y116 R356 F365

Gene Ontology

	Molecular Function
GO:0008121	ubiquinol-cytochrome-c reductase activity
GO:0009055	electron transfer activity
GO:0016491	oxidoreductase activity
GO:0046872	metal ion binding

	Biological Process
GO:0022904	respiratory electron transport chain
GO:1902600	proton transmembrane transport

	Cellular Component
GO:0005886	plasma membrane
GO:0016020	membrane
GO:0045275	respiratory chain complex III

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Molecular Function

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Biological Process

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Cellular Component

External links

PDB	RCSB:5kli, PDBe:5kli, PDBj:5kli
PDBsum	5kli
PubMed	27758861
UniProt	Q02761\|CYB_CERSP Cytochrome b (Gene Name=petB)

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