Structure of PDB 5x2s Chain E Binding Site BS01

Receptor Information
>5x2s Chain E (length=140) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHG
SAQVKGHGKKVADALTNAVAHVDDMPNALSALSDLHAHKLRVDPVNFKLL
SHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
Ligand information
Ligand IDHNI
InChIInChI=1S/C34H34N4O4.Ni/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-;
InChIKeyIJROJBFZULUEEG-RGGAHWMASA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Ni]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[Ni][N]5C(=CC1=N2)C(=C(C=C)C5=CC6=NC(=Cc4c(C)c3CCC(O)=O)C(=C6C)C=C)C
CACTVS 3.385CC1=C(CCC(O)=O)C2=Cc3n4[Ni][N@]5C(=CC1=N2)C(=C(C=C)C5=CC6=NC(=Cc4c(C)c3CCC(O)=O)C(=C6C)C=C)C
FormulaC34 H32 N4 Ni O4
NamePROTOPORPHYRIN IX CONTAINING NI(II)
ChEMBL
DrugBank
ZINC
PDB chain5x2s Chain E Residue 201 [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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PDB5x2s Direct observation of conformational population shifts in crystalline human hemoglobin.
Resolution2.39 Å
Binding residue
(original residue number in PDB)		M32 Y42 F43 H45 H58 K61 V62 L83 H87 L91 V93 N97 F98 L136
Binding residue
(residue number reindexed from 1)		M31 Y41 F42 H44 H57 K60 V61 L82 H86 L90 V92 N96 F97 L135
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0004601 peroxidase activity
GO:0005344 oxygen carrier activity
GO:0005506 iron ion binding
GO:0005515 protein binding
GO:0019825 oxygen binding
GO:0020037 heme binding
GO:0031720 haptoglobin binding
GO:0043177 organic acid binding
GO:0046872 metal ion binding
Biological Process
GO:0015670 carbon dioxide transport
GO:0015671 oxygen transport
GO:0030185 nitric oxide transport
GO:0042542 response to hydrogen peroxide
GO:0042744 hydrogen peroxide catabolic process
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005576 extracellular region
GO:0005615 extracellular space
GO:0005829 cytosol
GO:0005833 hemoglobin complex
GO:0016020 membrane
GO:0031838 haptoglobin-hemoglobin complex
GO:0070062 extracellular exosome
GO:0071682 endocytic vesicle lumen
GO:0072562 blood microparticle

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:5x2s, PDBe:5x2s, PDBj:5x2s
PDBsum5x2s
PubMed28931607
UniProtP69905|HBA_HUMAN Hemoglobin subunit alpha (Gene Name=HBA1)

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