Structure of PDB 1kzi Chain A Binding Site BS01

Receptor Information
>1kzi Chain A (length=264) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRC
HLRSIIHELLWFLQGDTNIAYLHENNVTIWDEWADENGDLGPVYGKQWRA
WPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFF
QFYVADGKLSCQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFV
WTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIFDYRFEDFEIE
GYDPHPGIKAPVAI
Ligand information
Ligand IDCO3
InChIInChI=1S/CH2O3/c2-1(3)4/h(H2,2,3,4)/p-2
InChIKeyBVKZGUZCCUSVTD-UHFFFAOYSA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0C(=O)([O-])[O-]
ACDLabs 10.04
CACTVS 3.341		[O-]C([O-])=O
FormulaC O3
NameCARBONATE ION
ChEMBL
DrugBankDB14531
ZINC
PDB chain1kzi Chain A Residue 805 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1kzi Tryptophan 80 and leucine 143 are critical for the hydride transfer step of thymidylate synthase by controlling active site access.
Resolution1.75 Å
Binding residue
(original residue number in PDB)		R225 H255
Binding residue
(residue number reindexed from 1)		R225 H255
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) E58 W80 Y94 C146 R166 D169 P175
Catalytic site (residue number reindexed from 1) E58 W80 Y94 C146 R166 D169 P175
Enzyme Commision number 2.1.1.45: thymidylate synthase.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003723 RNA binding
GO:0004799 thymidylate synthase activity
GO:0008168 methyltransferase activity
GO:0016741 transferase activity, transferring one-carbon groups
GO:0042803 protein homodimerization activity
Biological Process
GO:0006231 dTMP biosynthetic process
GO:0006235 dTTP biosynthetic process
GO:0006417 regulation of translation
GO:0009165 nucleotide biosynthetic process
GO:0009314 response to radiation
GO:0032259 methylation
Cellular Component
GO:0005737 cytoplasm
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:1kzi, PDBe:1kzi, PDBj:1kzi
PDBsum1kzi
PubMed12033935
UniProtP0A884|TYSY_ECOLI Thymidylate synthase (Gene Name=thyA)

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