Structure of PDB 3u7h Chain B Binding Site BS02

Receptor Information

>3u7h Chain B (length=375) Species: 10090 (Mus musculus)

SSLGWESLKKLLVFTASGVKPQGKVAAFALDGTLITTRSGKVFPTSPSDW
RILYPEIPKKLQELAAEGYKLVIFTNQMGIGRGKLPAEVFKGKVEAVLEK
LGVPFQVLVATHAGLNRKPVSGMWDHLQEQANEGIPISVEDSVFVGDAAG
RLANWAPGRKKKDFSCADRLFALNVGLPFATPEEFFLKWPAARFELPAFD
PRTISSAGPLYLPESSSLLSPNPEVVVAVGFPGAGKSTFIQEHLVSAGYV
HVNRDTLCVSSCQAALRQGKRVVIDNTNPDVPSRARYIQCAKDAGVPCRC
FNFCATIEQARHNNRFREMTDPSHAPVSDMVMFSYRKQFEPPTLAEGFLE
ILEIPFRLQHLDPALQRLYRQFSEG

Ligand information

• Ligand ID: MG
• InChI: InChI=1S/Mg/q+2
• InChIKey: JLVVSXFLKOJNIY-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Mg+2]
  CACTVS 3.341: [Mg++]
• Formula: Mg
• Name: MAGNESIUM ION
• DrugBank: DB01378
• PDB chain: 3u7h Chain B Residue 532

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3u7h Structural basis for the phosphatase activity of polynucleotide kinase/phosphatase on single- and double-stranded DNA substrates.
• Resolution: 2.0 Å
• Binding residue (original residue number in PDB): D172 D288
• Binding residue (residue number reindexed from 1): D31 D147
• Annotation score: 1

Enzymatic activity

• Enzyme Commision number: 2.7.1.78: polynucleotide 5'-hydroxyl-kinase.
  3.1.3.32: polynucleotide 3'-phosphatase.

Gene Ontology

Molecular Function

• GO:0046403 polynucleotide 3'-phosphatase activity
• GO:0046404 ATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity

Biological Process

• GO:0006281 DNA repair

External links

• PDB: RCSB:3u7h, PDBe:3u7h, PDBj:3u7h
• PDBsum: 3u7h
• PubMed: 22171004
• UniProt: Q9JLV6|PNKP_MOUSE Bifunctional polynucleotide phosphatase/kinase (Gene Name=Pnkp)