Structure of PDB 4by3 Chain A Binding Site BS02

Receptor Information

>4by3 Chain A (length=362) Species: 9606 (Homo sapiens)

KLVRLPGLIDVHVHLREPGGTHKEDFASGTAAALAGGITMVCAMPNTRPP
IIDAPALALAQKLAEAGARCDFALFLGASSENAGTLGTVAGSAAGLKLYL
NETFSELRLDSVVQWMEHFETWPSHLPIVAHAEQQTVAAVLMVAQLTQRS
VHICHVARKEEILLIKAAKARGLPVTCEVAPHHLFLSHDDLERLGPGKGE
VRPELGSRQDVEALWENMAVIDCFASDHAPHTLEEKCGSRPPPGFPGLET
MLPLLLTAVSEGRLSLDDLLQRLHHNPRRIFHLPPQEDTYVEVDLEHEWT
IPSHMPFSKAHWTPFEGQKVKGTVRRVVLRGEVAYIDGQVLVPPGYGQDV
RKWPQGAVPQLP

Ligand information

• Ligand ID: ZN
• InChI: InChI=1S/Zn/q+2
• InChIKey: PTFCDOFLOPIGGS-UHFFFAOYSA-N
• SMILES:
  CACTVS 3.341: [Zn++]
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Zn+2]
• Formula: Zn
• Name: ZINC ION
• ChEMBL: CHEMBL1236970
• DrugBank: DB14532
• PDB chain: 4by3 Chain A Residue 1001

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4by3 Structure, Functional Characterization, and Evolution of the Dihydroorotase Domain of Human Cad.
• Resolution: 1.73 Å
• Binding residue (original residue number in PDB): K1556 H1590 H1614
• Binding residue (residue number reindexed from 1): K97 H131 H155
• Annotation score: 1

Enzymatic activity

• Enzyme Commision number: 2.1.3.2: aspartate carbamoyltransferase.
  3.5.1.2: glutaminase.
  3.5.2.3: dihydroorotase.
  6.3.4.16: carbamoyl-phosphate synthase (ammonia).
  6.3.5.5: carbamoyl-phosphate synthase (glutamine-hydrolyzing).

Gene Ontology

Molecular Function

• GO:0016787 hydrolase activity
• GO:0016810 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
• GO:0016812 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides

External links

• PDB: RCSB:4by3, PDBe:4by3, PDBj:4by3
• PDBsum: 4by3
• PubMed: 24332717
• UniProt: P27708|PYR1_HUMAN Multifunctional protein CAD (Gene Name=CAD)