Structure of PDB 1ot3 Chain B

Receptor sequence
>1ot3B (length=192) Species: 7227 (Drosophila melanogaster) [Search protein sequence]
TKYAEGTQPFTVLIEGNIGSGKTTYLNHFEKYKNDICLLTEPVEKWRNVN
GVNLLELMYKDPKKWAMPFQSYVTLTMLQSHTAPTNKKLKIMERSIFSAR
YCFVENMRRNGSLEQGMYNTLEEWYKFIEESIHVQADLIIYLRTSPEVAY
ERIRQRARSEESCVPLKYLQELHELHEDWLIHQCKVLVLDAD
3D structure
PDB1ot3 Structural Basis for Feedback Inhibition of the Deoxyribonucleoside Salvage Pathway: Studies of the Drosophila Deoxyribonucleoside Kinase.
ChainB
Resolution2.5 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E52 R105
Catalytic site (residue number reindexed from 1) E41 R94
Enzyme Commision number 2.7.1.145: deoxynucleoside kinase.
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 THM B I29 E52 W57 Y70 F80 Q81 R105 A110 F114 E172 I18 E41 W46 Y59 F69 Q70 R94 A99 F103 E161
Gene Ontology
Molecular Function
GO:0004136 deoxyadenosine kinase activity
GO:0004137 deoxycytidine kinase activity
GO:0004138 deoxyguanosine kinase activity
GO:0004797 thymidine kinase activity
GO:0004849 uridine kinase activity
GO:0005524 ATP binding
GO:0016301 kinase activity
GO:0019136 deoxynucleoside kinase activity
GO:0043771 cytidine kinase activity
Biological Process
GO:0006139 nucleobase-containing compound metabolic process
GO:0006170 dAMP biosynthetic process
GO:0006222 UMP biosynthetic process
GO:0009157 deoxyribonucleoside monophosphate biosynthetic process
GO:0009224 CMP biosynthetic process
GO:0016310 phosphorylation
GO:0043174 nucleoside salvage
GO:0071897 DNA biosynthetic process
GO:1901293 nucleoside phosphate biosynthetic process
Cellular Component
GO:0005737 cytoplasm
GO:0005739 mitochondrion

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Cellular Component
External links
PDB RCSB:1ot3, PDBe:1ot3, PDBj:1ot3
PDBsum1ot3
PubMed12741827
UniProtQ9XZT6|DNK_DROME Deoxynucleoside kinase (Gene Name=dnk)

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