Structure of PDB 1xkb Chain A Binding Site BS01

Receptor Information
>1xkb Chain A (length=91) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
DQCETSPCQNQGKCKDGLGEYTCTCLEGFEGKNCELFTRKLCSLDNGDCD
QFCHEEQNSVVCSCARGYTLADNGKACIPTGPYPCGKQTLE
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain1xkb Chain A Residue 501 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1xkb Structural basis for chemical inhibition of human blood coagulation factor Xa.
Resolution2.4 Å
Binding residue
(original residue number in PDB)		Q49 D63 L65 G66
Binding residue
(residue number reindexed from 1)		Q2 D16 L18 G19
Annotation score4
Enzymatic activity
Enzyme Commision number 3.4.21.6: coagulation factor Xa.
Gene Ontology
Molecular Function
GO:0005509 calcium ion binding

View graph for
Molecular Function
External links
PDB RCSB:1xkb, PDBe:1xkb, PDBj:1xkb
PDBsum1xkb
PubMed9618463
UniProtP00742|FA10_HUMAN Coagulation factor X (Gene Name=F10)

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