Structure of PDB 1i8o Chain A Binding Site BS01

Receptor Information
>1i8o Chain A (length=114) Species: 1076 (Rhodopseudomonas palustris) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QDAKAGEAVFKQCMTCHRADKNMVGPALAGVVGRKAGTAAGFTYSPLNHN
SGEAGLVWTADNIVPYLADPNAFLKKFLTEKGKADQAVGVTKMTFKLANE
QQRKDVVAYLATLK
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 chain1i8o Chain A Residue 115 [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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PDB1i8o Cleavage of the iron-methionine bond in c-type cytochromes: crystal structure of oxidized and reduced cytochrome c(2) from Rhodopseudomonas palustris and its ammonia complex.
Resolution1.15 Å
Binding residue
(original residue number in PDB)		C13 C16 H17 G25 P26 G37 Y44 S45 N48 W58 Y66 L67 T91 K92 M93 F95
Binding residue
(residue number reindexed from 1)		C13 C16 H17 G25 P26 G37 Y44 S45 N48 W58 Y66 L67 T91 K92 M93 F95
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0009055 electron transfer activity
GO:0020037 heme binding
GO:0046872 metal ion binding
Biological Process
GO:0015979 photosynthesis

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:1i8o, PDBe:1i8o, PDBj:1i8o
PDBsum1i8o
PubMed11742117
UniProtP00091|CYC22_RHOPA Cytochrome c2 (Gene Name=cycA)

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