An enzyme catalyzing liberation of pyrroloquinoline quinone(PQQ) from PQQ-adducts.
نویسندگان
چکیده
منابع مشابه
The pyrroloquinoline quinone (PQQ)-containing quinoprotein dehydrogenases.
L. (1995) Biochemistry 34, 11080-1 1089 10 Friden, H. and Hederstedt, L. (1990) Mol. Microbiol. 4, 1045-1056 1 1 Nakamura, K., Yamaki, M., Sarada, M., Nakayama, S., Vibat, C. R. T., Gennis, R. B., Nakayashiki, T., Inokuchi, H., Kojima, S. and Kita, K. (1996) J. Biol. Chem. 271, 521-527 12 Hagerhall, C. and Hederstedt, L. (1996) FEBS Lett. 389, 25-31 13 Pennoyer, J. D., Ohnishi, T. and Trumpower...
متن کاملThe Life History of Pyrroloquinoline Quinone (PQQ): A Versatile Molecule with Novel Impacts on Living Systems
Pyrroloquinoline quinone (4, 5-dihydro(4), 5-dioxo(1) H-pyrroloquinoline-2,7, 9 tricarboxylic acid) being a three ortho cyclic quinone substitutes the role of a redox-cofactor for various bacterial dehydrogenases such as methanol, ethanol and glucose dehydrogenases [1-6] also termed as methotaxin [7]. PQQ structure prediction shows that it has been originated from tyrosine and Glutamic-acid [8]...
متن کاملIdentification of lactate dehydrogenase as a mammalian pyrroloquinoline quinone (PQQ)-binding protein
Pyrroloquinoline quinone (PQQ), a redox-active o-quinone, is an important nutrient involved in numerous physiological and biochemical processes in mammals. Despite such beneficial functions, the underlying molecular mechanisms remain to be established. In the present study, using PQQ-immobilized Sepharose beads as a probe, we examined the presence of protein(s) that are capable of binding PQQ i...
متن کاملNorcoclaurine synthase: mechanism of an enantioselective pictet-spengler catalyzing enzyme.
The use of bifunctional catalysts in organic synthesis finds inspiration in the selectivity of enzymatic catalysis which arises from the specific interactions between basic and acidic amino acid residues and the substrate itself in order to stabilize developing charges in the transition state. Many enzymes act as bifunctional catalysts using amino acid residues at the active site as Lewis acids...
متن کاملOne-electron Reduction of Pyrroloquinoline Quinone (pqq), in Aqueous Solutions: a Pulse Radiolysis Study
One electron reduction of Pyrroloquinoline quinone (PQQ) was studied using pulse radiolysis technique. Reactions of hydrated electron, H atom, radical and superoxide radicals produced very similar transient species. The radicals did not show decay in few milliseconds. The one-electron reduction potential of PQQ was determined at pH 7 using both methyl viologen and benzyl viologen couples and wa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1990
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.54.2481