Structure of PDB 1q1k Chain A Binding Site BS01

Receptor Information
>1q1k Chain A (length=288) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TRLRIAMQKSGRLSDDSRELLARCGIKINLHTQRLIAMAENMPIDILRVR
DDDIPGLVMDGVVDLGIIGENVLEEELLNRRAQGEDPRYFTLRRLDFGGC
RLSLATPVDEAWDGPLSLNGKRIATSYPHLLKRYLDQKGISFKSCLLNGS
VEVAPRAGLADAICDLVSTGATLEANGLREVEVIYRSKACLIQRDGEMEE
SKQQLIDKLLTRIQGVIQARESKYIMMHAPTERLDEVIALLPGAERPTIL
PLAMHMVSSETLFWETMEKLKALGASSILVLPIEKMME
Ligand information
Ligand IDPRT
InChIInChI=1S/C15H25N5O20P4/c16-12-7-13(18-4-19(12)14-10(23)8(21)5(37-14)1-35-41(25,26)27)20(3-17-7)15-11(24)9(22)6(38-15)2-36-43(31,32)40-44(33,34)39-42(28,29)30/h3-6,8-11,14-16,21-24H,1-2H2,(H,31,32)(H,33,34)(H2,25,26,27)(H2,28,29,30)/b16-12-/t5-,6-,8-,9-,10-,11-,14-,15-/m1/s1
InChIKeyRKNHJBVBFHDXGR-DNVSJNHSSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.6[H]/N=C\1/c2c(n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N=CN1[C@H]4[C@@H]([C@@H]([C@H](O4)COP(=O)(O)O)O)O
OpenEye OEToolkits 2.0.6c1nc2c(n1C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N=CN(C2=N)C4C(C(C(O4)COP(=O)(O)O)O)O
CACTVS 3.385O[CH]1[CH](O)[CH](O[CH]1CO[P](O)(O)=O)N2C=Nc3n(cnc3C2=N)[CH]4O[CH](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]4O
CACTVS 3.385O[C@H]1[C@@H](O)[C@@H](O[C@@H]1CO[P](O)(O)=O)N2C=Nc3n(cnc3C2=N)[C@@H]4O[C@H](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]4O
FormulaC15 H25 N5 O20 P4
Name PHOSPHORIBOSYL ATP ;
[[(2~{R},3~{S},4~{R},5~{R})-5-[6-azanylidene-1-[(2~{R},3~{R},4~{S},5~{R})-3,4-bis(oxidanyl)-5-(phosphonooxymethyl)oxolan-2-yl]purin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate
ChEMBL
DrugBank
ZINC
PDB chain1q1k Chain A Residue 500 [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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PDB1q1k The structure of Escherichia coli ATP-phosphoribosyltransferase: identification of substrate binding sites and mode of AMP inhibition
Resolution2.9 Å
Binding residue
(original residue number in PDB)
R16 D55 D56 N75 V76 C104 Y131 E156 L170 S172 T173 G174 A175 T176
Binding residue
(residue number reindexed from 1)
R12 D51 D52 N71 V72 C100 Y127 E152 L166 S168 T169 G170 A171 T172
Annotation score5
Enzymatic activity
Enzyme Commision number 2.4.2.17: ATP phosphoribosyltransferase.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003879 ATP phosphoribosyltransferase activity
GO:0005524 ATP binding
GO:0016757 glycosyltransferase activity
GO:0046872 metal ion binding
Biological Process
GO:0000105 L-histidine biosynthetic process
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:1q1k, PDBe:1q1k, PDBj:1q1k
PDBsum1q1k
PubMed14741209
UniProtP60757|HIS1_ECOLI ATP phosphoribosyltransferase (Gene Name=hisG)

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