Structure of PDB 2tsr Chain A Binding Site BS02

Receptor Information
>2tsr Chain A (length=281) Species: 10116 (Rattus norvegicus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QHGELQYLRQVEHIMRCGFKKEDRTGTGTLSVFGMQARYSLRDEFPLLTT
KRVFWKGVLEELLWFIKGSTNAKELSSKGVRIWDANGSRDFLDSLGFSAR
QEGDLGPVYGFQWRHFGADYKDMDSDYSGQGVDQLQKVIDTIKTNPDDRR
IIMCAWNPKDLPLMALPPCHALCQFYVVNGELSCQLYQRSGDMGLGVPFN
IASYALLTYMIAHITGLQPGDFVHTLGDAHIYLNHIEPLKIQLQREPRPF
PKLRILRKVETIDDFKVEDFQIEGYNPHPTI
Ligand information
Ligand IDD16
InChIInChI=1S/C21H22N4O6S/c1-11-22-14-4-3-12(9-13(14)19(28)23-11)10-25(2)17-7-6-16(32-17)20(29)24-15(21(30)31)5-8-18(26)27/h3-4,6-7,9,15H,5,8,10H2,1-2H3,(H,24,29)(H,26,27)(H,30,31)(H,22,23,28)/t15-/m0/s1
InChIKeyIVTVGDXNLFLDRM-HNNXBMFYSA-N
SMILES
SoftwareSMILES
ACDLabs 12.01O=C(c3sc(N(C)Cc2ccc1NC(=NC(=O)c1c2)C)cc3)NC(C(=O)O)CCC(=O)O
CACTVS 3.370CN(Cc1ccc2NC(=NC(=O)c2c1)C)c3sc(cc3)C(=O)N[CH](CCC(O)=O)C(O)=O
OpenEye OEToolkits 1.7.6CC1=NC(=O)c2cc(ccc2N1)CN(C)c3ccc(s3)C(=O)N[C@@H](CCC(=O)O)C(=O)O
CACTVS 3.370CN(Cc1ccc2NC(=NC(=O)c2c1)C)c3sc(cc3)C(=O)N[C@@H](CCC(O)=O)C(O)=O
OpenEye OEToolkits 1.7.6CC1=NC(=O)c2cc(ccc2N1)CN(C)c3ccc(s3)C(=O)NC(CCC(=O)O)C(=O)O
FormulaC21 H22 N4 O6 S
NameTOMUDEX;
ZD1694;
Raltitrexed
ChEMBLCHEMBL225071
DrugBankDB00293
ZINCZINC000003832372
PDB chain2tsr Chain A Residue 309 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2tsr Crystal structures of rat thymidylate synthase inhibited by Tomudex, a potent anticancer drug.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		R72 I102 D212 G216 F219 Y252
Binding residue
(residue number reindexed from 1)		R52 I82 D192 G196 F199 Y232
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=7.54,Ki=29nM
Enzymatic activity
Catalytic site (original residue number in PDB) E81 W103 Y129 C189 R209 D212
Catalytic site (residue number reindexed from 1) E61 W83 Y109 C169 R189 D192
Enzyme Commision number 2.1.1.45: thymidylate synthase.
Gene Ontology
Molecular Function
GO:0000900 mRNA regulatory element binding translation repressor activity
GO:0003729 mRNA binding
GO:0004799 thymidylate synthase activity
GO:0005542 folic acid binding
GO:0008168 methyltransferase activity
GO:0016741 transferase activity, transferring one-carbon groups
GO:0042803 protein homodimerization activity
GO:1901363 heterocyclic compound binding
GO:1990825 sequence-specific mRNA binding
Biological Process
GO:0006206 pyrimidine nucleobase metabolic process
GO:0006231 dTMP biosynthetic process
GO:0006235 dTTP biosynthetic process
GO:0006417 regulation of translation
GO:0007623 circadian rhythm
GO:0009165 nucleotide biosynthetic process
GO:0009410 response to xenobiotic stimulus
GO:0009636 response to toxic substance
GO:0014070 response to organic cyclic compound
GO:0017148 negative regulation of translation
GO:0019860 uracil metabolic process
GO:0032259 methylation
GO:0032570 response to progesterone
GO:0033189 response to vitamin A
GO:0034097 response to cytokine
GO:0035999 tetrahydrofolate interconversion
GO:0045471 response to ethanol
GO:0046653 tetrahydrofolate metabolic process
GO:0046683 response to organophosphorus
GO:0048589 developmental growth
GO:0051216 cartilage development
GO:0051384 response to glucocorticoid
GO:0051593 response to folic acid
GO:0060574 intestinal epithelial cell maturation
GO:0097421 liver regeneration
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005743 mitochondrial inner membrane
GO:0005759 mitochondrial matrix
GO:0005829 cytosol

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Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:2tsr, PDBe:2tsr, PDBj:2tsr
PDBsum2tsr
PubMed9894005
UniProtP45352|TYSY_RAT Thymidylate synthase (Gene Name=Tyms)

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