Structure of PDB 3k5k Chain A Binding Site BS05

Receptor Information
>3k5k Chain A (length=272) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RTEKIICRDVARGYENVPIPCVNGVDGEPCPEDYKYISENCETSTMNIDR
NITHLQHCTCVDDCSSSNCLCGQLSIRCWYDKDGRLLQEFNKIEPPLIFE
CNQACSCWRNCKNRVVQSGIKVRLQLYRTAKMGWGVRALQTIPQGTFICE
YVGELISDAEADVREDDSYLFDLDNKEVYCIDARYYGNISRFINHLCDPN
IIPVRVFMLHQDLRFPRIAFFSSRDIRTGEELGFDYGDRFWDIKSKYFTC
QCGSEKCKHSAEAIALEQSRLA
Ligand information
Ligand IDSAH
InChIInChI=1S/C14H20N6O5S/c15-6(14(23)24)1-2-26-3-7-9(21)10(22)13(25-7)20-5-19-8-11(16)17-4-18-12(8)20/h4-7,9-10,13,21-22H,1-3,15H2,(H,23,24)(H2,16,17,18)/t6-,7+,9+,10+,13+/m0/s1
InChIKeyZJUKTBDSGOFHSH-WFMPWKQPSA-N
SMILES
SoftwareSMILES
CACTVS 3.341N[CH](CCSC[CH]1O[CH]([CH](O)[CH]1O)n2cnc3c(N)ncnc23)C(O)=O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)C3C(C(C(O3)CSCCC(C(=O)O)N)O)O)N
CACTVS 3.341N[C@@H](CCSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23)C(O)=O
ACDLabs 10.04O=C(O)C(N)CCSCC3OC(n2cnc1c(ncnc12)N)C(O)C3O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CSCC[C@@H](C(=O)O)N)O)O)N
FormulaC14 H20 N6 O5 S
NameS-ADENOSYL-L-HOMOCYSTEINE
ChEMBLCHEMBL418052
DrugBankDB01752
ZINCZINC000004228232
PDB chain3k5k Chain A Residue 1198 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3k5k Discovery of a 2,4-diamino-7-aminoalkoxyquinazoline as a potent and selective inhibitor of histone lysine methyltransferase G9a.
Resolution1.7 Å
Binding residue
(original residue number in PDB)		M1048 W1050 Y1085 R1109 F1110 N1112 H1113 Y1154 F1158 F1166 C1168 Q1169
Binding residue
(residue number reindexed from 1)		M132 W134 Y169 R191 F192 N194 H195 Y236 F240 F248 C250 Q251
Annotation score5
Binding affinityBindingDB: Ki=570nM,IC50=2000nM
Enzymatic activity
Catalytic site (original residue number in PDB) Y1067 Y1154
Catalytic site (residue number reindexed from 1) Y151 Y236
Enzyme Commision number 2.1.1.-
2.1.1.367: [histone H3]-lysine(9) N-methyltransferase.
Gene Ontology
Molecular Function
GO:0002039 p53 binding
GO:0008270 zinc ion binding
GO:0016279 protein-lysine N-methyltransferase activity
GO:0042054 histone methyltransferase activity
Cellular Component
GO:0005634 nucleus

View graph for
Molecular Function
View graph for
Cellular Component
External links
PDB RCSB:3k5k, PDBe:3k5k, PDBj:3k5k
PDBsum3k5k
PubMed19891491
UniProtQ96KQ7|EHMT2_HUMAN Histone-lysine N-methyltransferase EHMT2 (Gene Name=EHMT2)

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