Structure of PDB 1nnj Chain A Binding Site BS01

Receptor Information
>1nnj Chain A (length=267) Species: 1358 (Lactococcus lactis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GELPEVETVRRELEKRIVGQKIISIEATYPRMVLTGFEQLKKELTGKTIQ
GISRRGKYLIFEIGDDFRLISHLRMEGKYRLATLDAPREKHDHLTMKFAD
GQLIYADVRKFGTWELISTDQVLPYFLKKKIGPEPTYEDFDEKLFREKLR
KSTKKIKPYLLEQTLVAGLGNIYVDEVLWLAKIHPEKETNQLIESSIHLL
HDSIIEILQKAIKLGGSSIALGSTGKMQNELQVYGKTGEKCSRCGAEIQK
IKVAGRGTHFCPVCQQK
Ligand information
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1nnj Structural insights into abasic site for Fpg specific binding and catalysis: comparative high-resolution crystallographic studies of Fpg bound to various models of abasic site analogues-containing DNA.
Resolution1.9 Å
Binding residue
(original residue number in PDB)		E2 K57 H72 R74 M75 K129 G170 N171 Y238 K254 K256 R260
Binding residue
(residue number reindexed from 1)		E2 K57 H72 R74 M75 K129 G170 N171 Y234 K250 K252 R256
Binding affinityPDBbind-CN: Kd=6nM
Enzymatic activity
Catalytic site (original residue number in PDB) G1
Catalytic site (residue number reindexed from 1) G1
Enzyme Commision number 3.2.2.23: DNA-formamidopyrimidine glycosylase.
4.2.99.18: DNA-(apurinic or apyrimidinic site) lyase.
Gene Ontology
Molecular Function
GO:0003676 nucleic acid binding
GO:0003677 DNA binding
GO:0003684 damaged DNA binding
GO:0003906 DNA-(apurinic or apyrimidinic site) endonuclease activity
GO:0008270 zinc ion binding
GO:0008534 oxidized purine nucleobase lesion DNA N-glycosylase activity
GO:0016787 hydrolase activity
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0016799 hydrolase activity, hydrolyzing N-glycosyl compounds
GO:0016829 lyase activity
GO:0019104 DNA N-glycosylase activity
GO:0034039 8-oxo-7,8-dihydroguanine DNA N-glycosylase activity
GO:0046872 metal ion binding
GO:0140078 class I DNA-(apurinic or apyrimidinic site) endonuclease activity
Biological Process
GO:0006281 DNA repair
GO:0006284 base-excision repair

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Molecular Function
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Biological Process
External links
PDB RCSB:1nnj, PDBe:1nnj, PDBj:1nnj
PDBsum1nnj
PubMed16243784
UniProtP42371|FPG_LACLC Formamidopyrimidine-DNA glycosylase (Gene Name=mutM)

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