Structure of PDB 1kyo Chain D Binding Site BS01

Receptor Information
>1kyo Chain D (length=245) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MTAAEHGLHAPAYAWSHNGPFETFDHASIRRGYQVYREVCAACHSLDRVA
WRTLVGVSHTNEEVRNMAEEFEYDDEPDEQGNPKKRPGKLSDYIPGPYPN
EQAARAANQGALPPDLSLIVKARHGGCDYIFSLLTGYPDEPPAGVALPPG
SNYNPYFPGGSIAMARVLFDDMVEYEDGTPATTSQMAKDVTTFLNWCAEP
EHDERKRLGLKTVIILSSLYLLSIWVKKFKWAGIKTRKFVFNPPK
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 D Residue 503 [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)		C101 C104 H105 N169 P174 P175 R184 Y190 L195 F218 A224 M225 V228
Binding residue
(residue number reindexed from 1)		C40 C43 H44 N108 P113 P114 R123 Y129 L134 F157 A163 M164 V167
Annotation score1
Enzymatic activity
Enzyme Commision number 7.1.1.8: quinol--cytochrome-c reductase.
Gene Ontology
Molecular Function
GO:0009055 electron transfer activity
GO:0020037 heme binding

View graph for
Molecular Function
External links
PDB RCSB:1kyo, PDBe:1kyo, PDBj:1kyo
PDBsum1kyo
PubMed11880631
UniProtP07143|CY1_YEAST Cytochrome c1, heme protein, mitochondrial (Gene Name=CYT1)

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