Structure of PDB 6ymx Chain C

Receptor sequence

>6ymxC (length=385) Species: 559292 (Saccharomyces cerevisiae S288C) [Search protein sequence]

MAFRKSNVYLSLVNSYIIDSPQPSSINYWWNMGSLLGLCLVIQIVTGIFM
AMHYSSNIELAFSSVEHIMRDVHNGYILRYLHANGASFFFMVMFMHMAKG
LYYGSYRSPRVTLWNVGVIIFILTIATAFLGYCCVYGQMSHWGATVITNL
FSAIPFVGNDIVSWLWGGFSVSNPTIQRFFALHYLVPFIIAAMVIMHLMA
LHIHGSSNPLGITGNLDRIPMHSYFIFKDLVTVFLFMLILALFVFYSPNT
LGHPDNYIPGNPLVTPASIVPEWYLLPFYAILRSIPDKLLGVITMFAAIL
VLLVLPFTDRSVVRGNTFKVLSKFFFFIFVFNFVLLGQIGACHVEVPYVL
MGQIATFIYFAYFLIIVPVISTIENVLFYIGRVNK

3D structure

PDB

6ymx Respiratory supercomplexes enhance electron transport by decreasing cytochrome c diffusion distance.

Chain

Resolution

3.17 Å

3D
structure

Catalytic site residues are labeled in the structure
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Enzymatic activity

Catalytic site (original residue number in PDB)	H202 S206 K228 D229 E272
Catalytic site (residue number reindexed from 1)	H202 S206 K228 D229 E272
Enzyme Commision number	7.1.1.8: quinol--cytochrome-c reductase.

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	C	Q43 I44 G47 I48 M50 R79 H82 A83 A86 G131 Y132 V135 H183 Y184 P187	Q43 I44 G47 I48 M50 R79 H82 A83 A86 G131 Y132 V135 H183 Y184 P187
BS02	HEM	C	W30 G33 F89 H96 M97 K99 S105 W114 G117 H197 S206 S207	W30 G33 F89 H96 M97 K99 S105 W114 G117 H197 S206 S207
BS03	CN5	C	L12 Y16 M199	L12 Y16 M199
BS04	UQ6	C	Y16 I17 S34 V41 F49 V194 M221	Y16 I17 S34 V41 F49 V194 M221

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:0006122	mitochondrial electron transport, ubiquinol to cytochrome c
GO:0009060	aerobic respiration
GO:0022904	respiratory electron transport chain
GO:0045333	cellular respiration
GO:1902600	proton transmembrane transport

	Cellular Component
GO:0005739	mitochondrion
GO:0005743	mitochondrial inner 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:6ymx, PDBe:6ymx, PDBj:6ymx
PDBsum	6ymx
PubMed	33016568
UniProt	P00163\|CYB_YEAST Cytochrome b (Gene Name=COB)

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