Structure of PDB 1caq Chain A Binding Site BS03

Receptor Information
>1caq Chain A (length=168) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
FRTFPGIPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTF
SRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDD
DEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRF
RLSQDDINGIQSLYGPPP
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 chain1caq Chain A Residue 303 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
PDB1caq X-ray structure of human stromelysin catalytic domain complexed with nonpeptide inhibitors: implications for inhibitor selectivity.
Resolution1.8 Å
Binding residue
(original residue number in PDB)		D158 G159 G161 V163 D181 E184
Binding residue
(residue number reindexed from 1)		D76 G77 G79 V81 D99 E102
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) H201 E202 H205 H211
Catalytic site (residue number reindexed from 1) H119 E120 H123 H129
Enzyme Commision number 3.4.24.17: stromelysin 1.
Gene Ontology
Molecular Function
GO:0004222 metalloendopeptidase activity
GO:0008237 metallopeptidase activity
GO:0008270 zinc ion binding
Biological Process
GO:0006508 proteolysis
Cellular Component
GO:0031012 extracellular matrix

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1caq, PDBe:1caq, PDBj:1caq
PDBsum1caq
PubMed10422833
UniProtP08254|MMP3_HUMAN Stromelysin-1 (Gene Name=MMP3)

[Back to BioLiP]