Structure of PDB 2nqh Chain A Binding Site BS03

Receptor Information
>2nqh Chain A (length=279) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MKYIGAHVSAAGGLANAAIRAAEIDATAFALFTKNQRQWRAAPLTTQTID
EFKAACEKYHYTSAQILPHDSYLINLGHPVTEALEKSRDAFIDEMQRCEQ
LGLSLLNFHPGSHLMQISEEDCLARIAESINIALDKTQGVTAVIENTAGQ
GSNLGFKFEHLAAIIDGVEDKSRVGVCIDTCHAFAAGYDLRTPAECEKTF
ADFARTVGFKYLRGMHLNDAKSTFGSRVDRHHSLGEGNIGHDAFRWIMQD
DRFDGIPLILQTINPDIWAEEIAWLKAQQ
Ligand information
Ligand IDZN
InChIInChI=1S/Zn/q+2
InChIKeyPTFCDOFLOPIGGS-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Zn++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Zn+2]
FormulaZn
NameZINC ION
ChEMBLCHEMBL1236970
DrugBankDB14532
ZINC
PDB chain2nqh Chain A Residue 303 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2nqh DNA apurinic-apyrimidinic site binding and excision by endonuclease IV.
Resolution1.1 Å
Binding residue
(original residue number in PDB)		H182 D229 H231
Binding residue
(residue number reindexed from 1)		H182 D229 H231
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) R37 H69 Y72 H109 E145 D179 H182 H216 D229 H231 Q261
Catalytic site (residue number reindexed from 1) R37 H69 Y72 H109 E145 D179 H182 H216 D229 H231 Q261
Enzyme Commision number 3.1.21.2: deoxyribonuclease IV.
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003906 DNA-(apurinic or apyrimidinic site) endonuclease activity
GO:0004519 endonuclease activity
GO:0008081 phosphoric diester hydrolase activity
GO:0008270 zinc ion binding
GO:0008296 3'-5'-DNA exonuclease activity
GO:0008833 deoxyribonuclease IV (phage-T4-induced) activity
GO:0016791 phosphatase activity
GO:0046872 metal ion binding
Biological Process
GO:0006281 DNA repair
GO:0006284 base-excision repair
Cellular Component
GO:0005829 cytosol

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Cellular Component
External links
PDB RCSB:2nqh, PDBe:2nqh, PDBj:2nqh
PDBsum2nqh
PubMed18408731
UniProtP0A6C1|END4_ECOLI Endonuclease 4 (Gene Name=nfo)

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