Structure of PDB 4q19 Chain A

Receptor sequence
>4q19A (length=228) Species: 9606 (Homo sapiens) [Search protein sequence]
IKKISIEGNIAAGKSTFVNILKQLSEDWEVVPEPVARWSLTMEQKNGGNV
LQMMYEKPERWSFTFQTYACLSRIRAQLASLGKLKDAEKPVLFFERSVYS
DRYIFASNLYESESMNETEWTIYQDWHDWMNNQFGQSLELDGIIYLQATP
ETCLHRIYLRGRNEEQGIPLEYLEKLHYKHESWLLHRTLKTNFDYLQEVP
ILTLDVNEDFKDKYESLVEKVKEFLSTL
3D structure
PDB4q19 Structure-guided development of deoxycytidine kinase inhibitors with nanomolar affinity and improved metabolic stability.
ChainA
Resolution2.09 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E53 R128
Catalytic site (residue number reindexed from 1) E33 R96
Enzyme Commision number 2.7.1.113: deoxyguanosine kinase.
2.7.1.74: deoxycytidine kinase.
2.7.1.76: deoxyadenosine 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 2XL A E53 V55 Y86 P89 Q97 F137 Y204 E33 V35 Y55 P58 Q66 F105 Y172 MOAD: Ki=8.9nM
PDBbind-CN: -logKd/Ki=8.05,Ki=8.9nM
BindingDB: IC50=19nM,Ki=8.9nM
BS02 UDP A A31 A32 G33 K34 S35 T36 R188 R192 D241 A11 A12 G13 K14 S15 T16 R156 R160 D209
Gene Ontology
Molecular Function
GO:0004136 deoxyadenosine kinase activity
GO:0004137 deoxycytidine kinase activity
GO:0004138 deoxyguanosine kinase activity
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0016301 kinase activity
GO:0019136 deoxynucleoside kinase activity
GO:0042803 protein homodimerization activity
GO:0043771 cytidine kinase activity
Biological Process
GO:0006139 nucleobase-containing compound metabolic process
GO:0006220 pyrimidine nucleotide metabolic process
GO:0009224 CMP biosynthetic process
GO:0016310 phosphorylation
GO:0106383 dAMP salvage
GO:1901135 carbohydrate derivative metabolic process
GO:1901293 nucleoside phosphate biosynthetic process
Cellular Component
GO:0005634 nucleus
GO:0005654 nucleoplasm
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4q19, PDBe:4q19, PDBj:4q19
PDBsum4q19
PubMed25341194
UniProtP27707|DCK_HUMAN Deoxycytidine kinase (Gene Name=DCK)

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