Structure of PDB 1pl0 Chain B Binding Site BS02

Receptor Information
>1pl0 Chain B (length=587) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GQLALFSVSDKTGLVEFARNLTALGLNLVASGGTAKALRDAGLAVRDVSE
LTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMARLDFNLIRVVACNL
YPFVKTVASPGVTVEEAVEQIDIGGVTLLRAAAKNHARVTVVCEPEDYVV
VSTEMQSSESKDTSLETRRQLALKAFTHTAQYDEAISDYFRKQYSKGVSQ
MPLRYGMNPHQTPAQLYTLQPKLPITVLNGAPGFINLCDALNAWQLVKEL
KEALGIPAAASFKHVSPAGAAVGIPLSEDEAKVCMVYDLYKTLTPISAAY
ARARGADRMSSFGDFVALSDVCDVPTAKIISREVSDGIIAPGYEEEALTI
LSKKKNGNYCVLQMDQSYKPDENEVRTLFGLHLSQKRNNGVVDKSLFSNV
VTKNKDLPESALRDLIVATIAVKYTQSNSVCYAKNGQVIGIGAGQQSRIH
CTRLAGDKANYWWLRHHPQVLSMKFKTGVAEISNAIDQYVTGTIGEDEDL
IKWKALFEEVPELLTEAEKKEWVEKLTEVSISSDAFFPFRDNVDRAKRSG
VAYIAAPSGSAADKVVIEACDELGIILAHTNLRLFHH
Ligand information
Ligand IDBW2
InChIInChI=1S/C20H19N5O8S/c21-20-23-14-6-3-11(9-13(14)18(29)24-20)25-34(32,33)12-4-1-10(2-5-12)17(28)22-15(19(30)31)7-8-16(26)27/h1-6,9,15,25H,7-8H2,(H,22,28)(H,26,27)(H,30,31)(H3,21,23,24,29)
InChIKeyILTMHHAQXFNQFZ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341NC1=Nc2ccc(N[S](=O)(=O)c3ccc(cc3)C(=O)NC(CCC(O)=O)C(O)=O)cc2C(=O)N1
OpenEye OEToolkits 1.5.0c1cc(ccc1C(=O)NC(CCC(=O)O)C(=O)O)S(=O)(=O)Nc2ccc3c(c2)C(=O)NC(=N3)N
OpenEye OEToolkits 1.5.0c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)S(=O)(=O)Nc2ccc3c(c2)C(=O)NC(=N3)N
ACDLabs 10.04O=C(O)C(NC(=O)c1ccc(cc1)S(=O)(=O)Nc3ccc2N=C(NC(=O)c2c3)N)CCC(=O)O
FormulaC20 H19 N5 O8 S
NameN-(4-{[(2-AMINO-4-OXO-3,4-DIHYDROQUINAZOLIN-6-YL)AMINO]SULFONYL}BENZOYL)GLUTAMIC ACID;
BW2315U89UC
ChEMBL
DrugBank
ZINC
PDB chain1pl0 Chain B Residue 802 [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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PDB1pl0 Crystal Structures of Human Bifunctional Enzyme Aminoimidazole-4-carboxamide Ribonucleotide Transformylase/IMP Cyclohydrolase in Complex with Potent Sulfonyl-containing Antifolates.
Resolution2.6 Å
Binding residue
(original residue number in PDB)
S450 R451 I452 F541 P543 F544 N547
Binding residue
(residue number reindexed from 1)
S447 R448 I449 F536 P538 F539 N542
Annotation score2
Binding affinityPDBbind-CN: -logKd/Ki=8.22,Ki=6nM
BindingDB: Ki=6.0nM,IC50=1000nM
Enzymatic activity
Catalytic site (original residue number in PDB) K266 H267 N431 H592
Catalytic site (residue number reindexed from 1) K263 H264 N428 H587
Enzyme Commision number 2.1.2.3: phosphoribosylaminoimidazolecarboxamide formyltransferase.
3.5.4.10: IMP cyclohydrolase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0003937 IMP cyclohydrolase activity
GO:0004643 phosphoribosylaminoimidazolecarboxamide formyltransferase activity
GO:0016740 transferase activity
GO:0016787 hydrolase activity
GO:0042803 protein homodimerization activity
GO:0045296 cadherin binding
Biological Process
GO:0003360 brainstem development
GO:0006139 nucleobase-containing compound metabolic process
GO:0006164 purine nucleotide biosynthetic process
GO:0006177 GMP biosynthetic process
GO:0006189 'de novo' IMP biosynthetic process
GO:0021549 cerebellum development
GO:0021987 cerebral cortex development
GO:0031100 animal organ regeneration
GO:0044208 'de novo' AMP biosynthetic process
GO:0046452 dihydrofolate metabolic process
GO:0046654 tetrahydrofolate biosynthetic process
GO:0097294 'de novo' XMP biosynthetic process
GO:0098761 cellular response to interleukin-7
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0005886 plasma membrane
GO:0016020 membrane
GO:0070062 extracellular exosome

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Molecular Function

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Biological Process

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Cellular Component
External links
PDB RCSB:1pl0, PDBe:1pl0, PDBj:1pl0
PDBsum1pl0
PubMed14966129
UniProtP31939|PUR9_HUMAN Bifunctional purine biosynthesis protein ATIC (Gene Name=ATIC)

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