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TitleReactions of Pseudomonas 7A glutaminase-asparaginase with diazo analogues of glutamine and asparagine result in unexpected covalent inhibitions and suggests an unusual catalytic triad Thr-Tyr-Glu.
Journal, issue, pagesBiochemistry, Vol. 39, Page 1199-1204, Year 2000
Publish dateDec 3, 1999 (structure data deposition date)
AuthorsOrtlund, E. / Lacount, M.W. / Lewinski, K. / Lebioda, L.
External linksBiochemistry / PubMed:10684596
MethodsX-ray diffraction
Resolution1.9 - 2 Å
Structure data

PDB-1djo:
Crystal structure of Pseudomonas 7A Glutaminase-asparaginase with the inhibitor donv covalently bound in the active site
Method: X-RAY DIFFRACTION / Resolution: 2 Å

PDB-1djp:
CRYSTAL STRUCTURE OF PSEUDOMONAS 7A GLUTAMINASE-ASPARAGINASE WITH THE INHIBITOR DON COVALENTLY BOUND IN THE ACTIVE SITE
Method: X-RAY DIFFRACTION / Resolution: 1.9 Å

Chemicals

ChemComp-CAB:
4,4-dihydroxy-5-oxo-L-norvaline

ChemComp-DO2:
5,5-dihydroxy-6-oxo-L-norleucine

ChemComp-HOH:
WATER

Source
  • pseudomonas sp. (bacteria)
KeywordsHYDROLASE/HYDROLASE INHIBITOR / PGA / Glutaminase / Asparaginase / DONV / 5-diazo-4-oxo-L-norvaline / Glutaminase-Asparaginase / suicide inhibitor / covalently bound inhibitor / HYDROLASE-HYDROLASE INHIBITOR complex / HYDROLASE / DON / 6-diazo-5-oxo-L-norvaline

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