Structure of PDB 1s56 Chain B Binding Site BS01

Receptor Information
>1s56 Chain B (length=135) Species: 1773 (Mycobacterium tuberculosis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GLLSRLRKREPISIYDKIGGHEAIEVVVEDFYVRVLADDQLSAFFSGTNM
SRLKGKQVEFFAAALGGPEPYTGAPMKQVHQGRGITMHHFSLVAGHLADA
LTAAGVPSETITEILGVIAPLAVDVTSGESTTAPV
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 chain1s56 Chain B Residue 144 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1s56 Heme-ligand tunneling in group I truncated hemoglobins
Resolution2.43 Å
Binding residue
(original residue number in PDB)		F45 F46 T49 R53 L54 K57 Q58 F61 G74 A75 M77 V80 H81 I86 F91 V94 V126
Binding residue
(residue number reindexed from 1)		F44 F45 T48 R52 L53 K56 Q57 F60 G73 A74 M76 V79 H80 I85 F90 V93 V125
Annotation score1
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0005344 oxygen carrier activity
GO:0005515 protein binding
GO:0008379 thioredoxin peroxidase activity
GO:0008941 nitric oxide dioxygenase NAD(P)H activity
GO:0019825 oxygen binding
GO:0020037 heme binding
GO:0046872 metal ion binding
Biological Process
GO:0015671 oxygen transport
GO:0034599 cellular response to oxidative stress
GO:0045454 cell redox homeostasis
GO:0046210 nitric oxide catabolic process
GO:0051410 detoxification of nitrogen compound
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1s56, PDBe:1s56, PDBj:1s56
PDBsum1s56
PubMed15016811
UniProtP9WN25|TRHBN_MYCTU Group 1 truncated hemoglobin GlbN (Gene Name=glbN)

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