Structure of PDB 1or4 Chain B Binding Site BS01

Receptor Information
>1or4 Chain B (length=158) Species: 1423 (Bacillus subtilis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QKNRIQLTNKHADVKKQLKMVRLGDAELYVLEQLQPLIQENIVNIVDAFY
KNLDHESSLMDIINDHSSVDRLKQTLKRHIQEMFAGVIDDEFIEKRNRIA
SIHLRIGLLPKWYMGAFQELLLSMIDIYEASITNQQELLKAIKATTKILN
LEQQLVLE
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 chain1or4 Chain B Residue 180 [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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PDB1or4 Structure of the oxygen sensor in Bacillus subtilis: signal transduction of chemotaxis by control of symmetry.
Resolution2.15 Å
Binding residue
(original residue number in PDB)		F69 L73 L79 I83 L92 L96 H99 I119 H123 I126 L128 F137
Binding residue
(residue number reindexed from 1)		F49 L53 L59 I63 L72 L76 H79 I99 H103 I106 L108 F117
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0019825 oxygen binding
GO:0020037 heme binding

View graph for
Molecular Function
External links
PDB RCSB:1or4, PDBe:1or4, PDBj:1or4
PDBsum1or4
PubMed12962628
UniProtO07621|HEMAT_BACSU Heme-based aerotactic transducer HemAT (Gene Name=hemAT)

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