Structure of PDB 1kyo Chain W Binding Site BS01

Receptor Information
>1kyo Chain W (length=108) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEG
YSYTDANIKKNVLWDENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLI
TYLKKACE
Ligand information
Ligand IDHEC
InChIInChI=1S/C34H34N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,9-12H2,1-6H3,(H,39,40)(H,41,42);/q-4;+4/b21-7?,22-8?,26-13-,29-14-,30-15-,31-16-;
InChIKeyHXQIYSLZKNYNMH-LJNAALQVSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04O=C(O)CCC1=C(C2=CC6=C(C(=C/C)\C5=CC4=C(C(\C3=Cc7c(c(c8C=C1N2[Fe](N34)(N56)n78)CCC(=O)O)C)=C/C)C)C)C
OpenEye OEToolkits 1.5.0CC=C1C(=C2C=C3C(=CC)C(=C4N3[Fe]56N2C1=Cc7n5c(c(c7C)CCC(=O)O)C=C8N6C(=C4)C(=C8CCC(=O)O)C)C)C
CACTVS 3.341C\C=C1/C(=C2C=C3N4C(=Cc5n6c(C=C7N8C(=C(C)\C7=C/C)C=C1N2[Fe@@]468)c(C)c5CCC(O)=O)C(=C3C)CCC(O)=O)C
CACTVS 3.341CC=C1C(=C2C=C3N4C(=Cc5n6c(C=C7N8C(=C(C)C7=CC)C=C1N2[Fe]468)c(C)c5CCC(O)=O)C(=C3C)CCC(O)=O)C
FormulaC34 H34 Fe N4 O4
NameHEME C
ChEMBL
DrugBank
ZINC
PDB chain1kyo Chain W Residue 526 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1kyo Crystal structure of the yeast cytochrome bc1 complex with its bound substrate cytochrome c.
Resolution2.97 Å
Binding residue
(original residue number in PDB)		R18 C19 C22 H23 V33 G34 I40 S45 G46 Y53 T54 N57 W64 Y72 T83 K84 M85 F87
Binding residue
(residue number reindexed from 1)		R18 C19 C22 H23 V33 G34 I40 S45 G46 Y53 T54 N57 W64 Y72 T83 K84 M85 F87
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0005515 protein binding
GO:0009055 electron transfer activity
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:1901612 cardiolipin binding
Biological Process
GO:0006122 mitochondrial electron transport, ubiquinol to cytochrome c
GO:0006123 mitochondrial electron transport, cytochrome c to oxygen
Cellular Component
GO:0005739 mitochondrion
GO:0005758 mitochondrial intermembrane space

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Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1kyo, PDBe:1kyo, PDBj:1kyo
PDBsum1kyo
PubMed11880631
UniProtP00044|CYC1_YEAST Cytochrome c isoform 1 (Gene Name=CYC1)

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