Structure of PDB 4q1b Chain A Binding Site BS01

Receptor Information
>4q1b Chain A (length=229) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RIKKISIEGNIAAGKSTFVNILKQLSEDWEVVPEPVARWSTMEQKNGGNV
LQMMYEKPERWSFTFQTYACLSRIRAQLASLNGKLKDAEKPVLFFERSVY
SDRYIFASNLYESESMNETEWTIYQDWHDWMNNQFGQSLELDGIIYLQAT
PETCLHRIYLRGRNEEQGIPLEYLEKLHYKHESWLLHRTLKTNFDYLQEV
PILTLDVNEDFKDKYESLVEKVKEFLSTL
Ligand information
Ligand ID2Y0
InChIInChI=1S/C20H26N6O3S3/c1-3-5-16-15(12-30-20-25-17(21)11-18(22)26-20)24-19(31-16)13-6-4-7-14(10-13)29-9-8-23-32(2,27)28/h4,6-7,10-11,23H,3,5,8-9,12H2,1-2H3,(H4,21,22,25,26)
InChIKeyULNBDBXWVRBZMV-UHFFFAOYSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.6CCCc1c(nc(s1)c2cccc(c2)OCCNS(=O)(=O)C)CSc3nc(cc(n3)N)N
CACTVS 3.385CCCc1sc(nc1CSc2nc(N)cc(N)n2)c3cccc(OCCN[S](C)(=O)=O)c3
ACDLabs 12.01O=S(=O)(NCCOc1cccc(c1)c2nc(c(s2)CCC)CSc3nc(N)cc(n3)N)C
FormulaC20 H26 N6 O3 S3
NameN-(2-(3-(4-(((4,6-diaminopyrimidin-2-yl)thio)methyl)-5-propylthiazol-2-yl)phenoxy)ethyl)methanesulfonamide;
N-{2-[3-(4-{[(4,6-diaminopyrimidin-2-yl)sulfanyl]methyl}-5-propyl-1,3-thiazol-2-yl)phenoxy]ethyl}methanesulfonamide
ChEMBLCHEMBL2426565
DrugBank
ZINCZINC000096283901
PDB chain4q1b Chain A Residue 301 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4q1b Structure-guided development of deoxycytidine kinase inhibitors with nanomolar affinity and improved metabolic stability.
Resolution2.15 Å
Binding residue
(original residue number in PDB)		E53 V55 L82 M85 Y86 Q97 D133 F137 N140 S144 Y204
Binding residue
(residue number reindexed from 1)		E34 V36 L51 M54 Y55 Q66 D102 F106 N109 S113 Y173
Annotation score1
Binding affinityMOAD: Ki=1.9nM
PDBbind-CN: -logKd/Ki=8.72,Ki=1.9nM
BindingDB: IC50=12nM,Ki=1.9nM
Enzymatic activity
Catalytic site (original residue number in PDB) E53 R128
Catalytic site (residue number reindexed from 1) E34 R97
Enzyme Commision number 2.7.1.113: deoxyguanosine kinase.
2.7.1.74: deoxycytidine kinase.
2.7.1.76: deoxyadenosine kinase.
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:4q1b, PDBe:4q1b, PDBj:4q1b
PDBsum4q1b
PubMed25341194
UniProtP27707|DCK_HUMAN Deoxycytidine kinase (Gene Name=DCK)

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