Glyoxylate Carboligase: A Unique Thiamin Diphosphate-Dependent Enzyme That Can Cycle between the 4′-Aminopyrimidinium and 1′,4′-Iminopyrimidine Tautomeric Forms in the Absence of the Conserved Glutamate
作者:Natalia Nemeria、Elad Binshtein、Hetalben Patel、Anand Balakrishnan、Ilan Vered、Boaz Shaanan、Ze’ev Barak、David Chipman、Frank Jordan
DOI:10.1021/bi300893v
日期:2012.10.9
glyoxylate to form tartronate semialdehyde (TSA). This enzyme is unique among ThDP enzymes in that it lacks a conserved glutamate near the N1′ atom of ThDP (replaced by Val51) or any other potential acid–base side chains near ThDP. The V51D substitution shifts the pH optimum to 6.0–6.2 (pKa of 6.2) for TSA formation from pH 7.0–7.7 in wild-type GCL. This pKa is similar to the pKa of 6.1 for the 1′,4′-iminopyrimidine
An Improved Synthesis of the Antibiotic Dehydrophos
作者:M. Mercedes Jiménez-Andreu、Francisco J. Sayago、Carlos Cativiela
DOI:10.1002/ejoc.201800689
日期:2018.8.7
This work was supported by the Ministerio de Economia y Competitividad (grant CTQ2013‐40855‐R) and the Gobierno de Aragon‐FEDER (Research group E19_17R) M. M. J.‐A. thanks the Gobierno de Aragon‐FSE for a predoctoral grant.
这项工作得到了Ministryio de Economia y Competitividad(授予CTQ2013-40855-R)和Gobierno de Aragon-FEDER(研究组E19_17R)MMJ-A的支持。感谢 Gobierno de Aragon-FSE 的博士前资助。
Active site generated analogs of reactive intermediates in enzymic reactions. Potent inhibition of pyruvate dehydrogenase by a phosphonate analog of pyruvate
作者:Ronald Kluger、David C. Pike
DOI:10.1021/ja00455a052
日期:1977.6
Karaman, Rafik; Goldblum, Amiram; Breuer, Eli, Journal of the Chemical Society. Perkin transactions I, 1989, # 4, p. 765 - 774