Structure of PDB 2ig3 Chain A Binding Site BS01

Receptor Information
>2ig3 Chain A (length=127) Species: 197 (Campylobacter jejuni) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MKFETINQESIAKLMEIFYEKVRKDKDLGPIFNNAIGTSDEEWKEHKAKI
GNFWAGMLLGEGDYNGQPLKKHLDLPPFPQEFFEIWLKLFEESLNIVYNE
EMKNVILQRAQMIASHFQNMLYKYGGH
Ligand information
Ligand IDHEM
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,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;
InChIKeyKABFMIBPWCXCRK-RGGAHWMASA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.6Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Fe]36[N]7=C(C=C8N6C(=C5)C(=C8C)C=C)C(=C(C7=C2)C)C=C)C)CCC(=O)O
CACTVS 3.385CC1=C(CCC(O)=O)C2=Cc3n4[Fe]5|6|N2=C1C=c7n5c(=CC8=N|6C(=Cc4c(C)c3CCC(O)=O)C(=C8C=C)C)c(C)c7C=C
ACDLabs 12.01C=1c3c(c(c4C=C5C(=C(C=6C=C7C(=C(C8=CC=2C(=C(C=1N=2[Fe](n34)(N5=6)N78)CCC(=O)O)C)\C=C)C)\C=C)C)C)CCC(=O)O
FormulaC34 H32 Fe N4 O4
NamePROTOPORPHYRIN IX CONTAINING FE;
HEME
ChEMBL
DrugBankDB18267
ZINC
PDB chain2ig3 Chain A Residue 700 [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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PDB2ig3 Structural determinants in the group III truncated hemoglobin from Campylobacter jejuni.
Resolution2.15 Å
Binding residue
(original residue number in PDB)
F32 I36 K49 I50 F53 Y64 K71 H72 L75 F78 F82 F83 W86 I113 F117
Binding residue
(residue number reindexed from 1)
F32 I36 K49 I50 F53 Y64 K71 H72 L75 F78 F82 F83 W86 I113 F117
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0019825 oxygen binding
GO:0020037 heme binding
GO:0046872 metal ion binding
Cellular Component
GO:0005737 cytoplasm

View graph for
Molecular Function

View graph for
Cellular Component
External links
PDB RCSB:2ig3, PDBe:2ig3, PDBj:2ig3
PDBsum2ig3
PubMed17023416
UniProtQ0PB48|TRHBP_CAMJE Group 3 truncated hemoglobin ctb (Gene Name=ctb)

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