Structure of PDB 4ndf Chain B

Receptor sequence
>4ndfB (length=180) Species: 9606 (Homo sapiens) [Search protein sequence]
GSHMGHWSQGLKISMQDPKMQVYKDEQVVVIKDKYPKARYHWLVLPWTSI
SSLKAVAREHLELLKHMHTVGEKVIVDFAGSSKLRFRLGYHAIPSMSHVH
LHVISQDFDSPCLKNKKHWNSFNTEYFLESQAVIEMVQEAGRVTVRDGMP
ELLKLPLRCHECQQLLPSIPQLKEHLRKHW
3D structure
PDB4ndf Aprataxin resolves adenylated RNA-DNA junctions to maintain genome integrity.
ChainB
Resolution1.944 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 3.6.1.71: adenosine-5'-diphospho-5'-[DNA] diphosphatase.
3.6.1.72: DNA-3'-diphospho-5'-guanosine diphosphatase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 dna B W167 Y195 K197 S255 M256 K277 H278 W7 Y35 K37 S95 M96 K117 H118
BS02 dna B K276 S328 I329 K116 S168 I169
BS03 AMP B L171 D193 K194 Y195 L203 H251 S255 M256 H260 H262 L11 D33 K34 Y35 L43 H91 S95 M96 H100 H102
BS04 ZN B C319 C322 H335 H339 C159 C162 H175 H179
Gene Ontology
Molecular Function
GO:0003824 catalytic activity

View graph for
Molecular Function
External links
PDB RCSB:4ndf, PDBe:4ndf, PDBj:4ndf
PDBsum4ndf
PubMed24362567
UniProtQ7Z2E3|APTX_HUMAN Aprataxin (Gene Name=APTX)

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