Structure of PDB 3ihl Chain B Binding Site BS01

Receptor Information

>3ihl Chain B (length=229) Species: 9606 (Homo sapiens)

MKYILVTGGVISGIGKGIIASSIGTILKSCGLRVTAIKIDPYINIDAGTF
SPYEHGEVFVLNDGGEVQVVPHITDAVQEWVMNQAKVPVDGNKEEPQICV
IELGGTIGDIEGMPFVEAFRQFQFKAKRENFCNIHVSLVPQLSATGEQKT
KPTQNSVRALRGLGLSPDLIVCRSSTPIEMAVKEKISMFCHVNPEQVICI
HDVSSTYRVPVLLEEQSIVKYFKERLHLP

Ligand information

• Ligand ID: ADP
• InChI: InChI=1S/C10H15N5O10P2/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(17)6(16)4(24-10)1-23-27(21,22)25-26(18,19)20/h2-4,6-7,10,16-17H,1H2,(H,21,22)(H2,11,12,13)(H2,18,19,20)/t4-,6-,7-,10-/m1/s1
• InChIKey: XTWYTFMLZFPYCI-KQYNXXCUSA-N
• SMILES:
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)OP(=O)(O)O)O)O)N
  CACTVS 3.341: Nc1ncnc2n(cnc12)[CH]3O[CH](CO[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]3O
  ACDLabs 10.04: O=P(O)(O)OP(=O)(O)OCC3OC(n2cnc1c(ncnc12)N)C(O)C3O
  CACTVS 3.341: Nc1ncnc2n(cnc12)[C@@H]3O[C@H](CO[P@@](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]3O
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)O)O)O)N
• Formula: C10 H15 N5 O10 P2
• Name: ADENOSINE-5'-DIPHOSPHATE
• ChEMBL: CHEMBL14830
• DrugBank: DB16833
• ZINC: ZINC000012360703
• PDB chain: 3ihl Chain B Residue 300

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3ihl Human CTPS2 crystal structure
• Resolution: 2.8 Å
• Binding residue (original residue number in PDB): G13 I14 G15 K16 G17 I18 D246 V247
• Binding residue (residue number reindexed from 1): G13 I14 G15 K16 G17 I18 D202 V203
• Annotation score: 5

Enzymatic activity

• Enzyme Commision number: 6.3.4.2: CTP synthase (glutamine hydrolyzing).

Gene Ontology

Molecular Function

• GO:0003883 CTP synthase activity

Biological Process

• GO:0006221 pyrimidine nucleotide biosynthetic process

External links

• PDB: RCSB:3ihl, PDBe:3ihl, PDBj:3ihl
• PDBsum: 3ihl
• UniProt: Q9NRF8|PYRG2_HUMAN CTP synthase 2 (Gene Name=CTPS2)