Structure of PDB 1qo4 Chain A Binding Site BS03

Receptor Information
>1qo4 Chain A (length=306) Species: 3702 (Arabidopsis thaliana) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MQLNATFYSGTCPNASAIVRSTIQQALQSDTRIGASLIRLHFHDCFVNGC
DASILLDDTGSIQSEKNAGPNVNSARGFNVVDNIKTALENACPGVVSCSD
VLALASEASVSLAGGPSWTVLLGRRDSLTANLAGANSSIPSPIESLSNIT
FKFSAVGLNTNDLVALSGAHTFGRARCGVFNNRLFNFSGTGNPDPTLNST
LLSTLQQLCPQNGSASTITNLDLSTPDAFDNNYFANLQSNDGLLQSDQEL
FSTTGSSTIAIVTSFASNQTLFFQAFAQSMINMGNISPLTGSNGEIRLDC
KKVNGS
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 chain1qo4 Chain A Residue 376 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1qo4 Differential Activity and Structure of Highly Similar Peroxidases. Spectroscopic, Crystallographic, and Enzymatic Analyses of Lignifying Arabidopsis Thaliana Peroxidase A2 and Horseradish Peroxidase A2
Resolution3.0 Å
Binding residue
(original residue number in PDB)		T170 D221 T224 A227 D229
Binding residue
(residue number reindexed from 1)		T171 D222 T225 A228 D230
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) R38 H42 N70 H169
Catalytic site (residue number reindexed from 1) R39 H43 N71 H170
Enzyme Commision number 1.11.1.7: peroxidase.
Gene Ontology
Molecular Function
GO:0004601 peroxidase activity
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:0140825 lactoperoxidase activity
Biological Process
GO:0002215 defense response to nematode
GO:0006979 response to oxidative stress
GO:0009908 flower development
GO:0042744 hydrogen peroxide catabolic process
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005576 extracellular region
GO:0005794 Golgi apparatus

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1qo4, PDBe:1qo4, PDBj:1qo4
PDBsum1qo4
PubMed11551197
UniProtQ42578|PER53_ARATH Peroxidase 53 (Gene Name=PER53)

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