Structure of PDB 3fz0 Chain B Binding Site BS01

Receptor Information

>3fz0 Chain B (length=338) Species: 5691 (Trypanosoma brucei)

VHRKLIIDTDCGGDDAIAIMLAMTQPDVEVIAITVVWGNVEVNQGMENIG
KLLDLYDADIPFFRGAEGPLVGERETVQWGGFGSDGFGDAGFPPSQRVAL
QPKRHAALEILKILEEAEPSDDVVYQLVALGPLTNVALALRLNPDLFSKL
GTDTIPGIVIMNGTSESKGNSNMAAEFNSHCDPEAGVVVLQHKGWKCPVQ
LVNWEVTVNSPMTWGFYDKLVNRESTPNGRVAVNQNKWQEFIEKLFQRLE
AFTRVTCVVPDAVAVLVAIRPESVLDSFLTYVTVELHGRETRGATCIDWY
GTEQSMAKKGRWRNCNVITKVDNEMFLKALRDIVEYVA

Ligand information

• Ligand ID: CA
• InChI: InChI=1S/Ca/q+2
• InChIKey: BHPQYMZQTOCNFJ-UHFFFAOYSA-N
• SMILES:
  CACTVS 3.341: [Ca++]
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Ca+2]
• Formula: Ca
• Name: CALCIUM ION
• DrugBank: DB14577
• PDB chain: 3fz0 Chain B Residue 400

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3fz0 Structure and mechanism of the 6-oxopurine nucleosidase from Trypanosoma brucei brucei
• Resolution: 2.5 Å
• Binding residue (original residue number in PDB): D11 D16 L131 D280
• Binding residue (residue number reindexed from 1): D10 D15 L130 D261
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): D11 D16 N40 L131 F178 N179 P279 D280
• Catalytic site (residue number reindexed from 1): D10 D15 N39 L130 F177 N178 P260 D261
• Enzyme Commision number: 3.2.2.1: purine nucleosidase.

Gene Ontology

Molecular Function

• GO:0008477 purine nucleosidase activity
• GO:0016798 hydrolase activity, acting on glycosyl bonds
• GO:0016799 hydrolase activity, hydrolyzing N-glycosyl compounds
• GO:0046872 metal ion binding
• GO:0047724 inosine nucleosidase activity

Biological Process

• GO:0006139 nucleobase-containing compound metabolic process
• GO:0006179 guanosine salvage
• GO:0006190 inosine salvage

Cellular Component

• GO:0005737 cytoplasm
• GO:0020015 glycosome

External links

• PDB: RCSB:3fz0, PDBe:3fz0, PDBj:3fz0
• PDBsum: 3fz0
• PubMed: 20825170
• UniProt: Q57X73