Zobrazeno 1 - 10
of 19
pro vyhledávání: '"K Barbara, Schowen"'
Publikováno v:
Journal of Physical Organic Chemistry. 26:1066-1070
The glucose dehydrogenase of the mesophilic bacterium Bacillus megaterium (optimal growth around 35 °C) exhibits non-linear Eyring temperature dependences from 25 to 55 °C in its catalysis of the oxidation by hydride-transfer to NAD+ of the β-anom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80d3603196668dbd0427be84437c4731
https://doi.org/10.1002/poc.3166
https://doi.org/10.1002/poc.3166
Publikováno v:
Journal of Physical Organic Chemistry. 23:586-605
Arrhenius curves of selected hydrogen transfer reactions in organic molecules and enzymes are reviewed with the focus on systems exhibiting temperature-independent kinetic isotope effects. The latter can be rationalized in terms of a ‘pre-tunneling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20f99126877f836ebf957dda97b41a22
https://doi.org/10.1002/poc.1663
https://doi.org/10.1002/poc.1663
Publikováno v:
Zeitschrift für Physikalische Chemie. 222:1333-1347
The thermophilic archaeon Thermoplasma acidophilum, with an optimal growth temperature in the region of 60 °C, has evolved a D-glucose dehydrogenase, dependent on NADP+ and accepting only the β-anomer of D-glucose, that exhibits a temperature depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d5067e0173fc76ca4ed0e749aa835be
https://doi.org/10.1524/zpch.2008.5391
https://doi.org/10.1524/zpch.2008.5391
Publikováno v:
Canadian Journal of Chemistry. 77:781-786
The hydrolysis of N-carbobenzyloxyaminoacyl-O-p-nitrophenyl esters derived from L-leucine, L-phenylalanine, and L-tryptophan, with catalysis by bovine pancreatic α-chymotrypsin at pH 7.00 at 25.00°C in water containing acetonitrile from 15.0% to 60
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83eb1556376e16606d563d29591915bd
https://doi.org/10.1139/v99-054
https://doi.org/10.1139/v99-054
Autor:
K. Barbara Schowen, Jeffrey A. Bibbs, Paul D. Tittel, Richard L. Schowen, Michael P. Garoutte, Bing Wang
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 102:573-579
The curvature of proton-inventory functions (rate constants in mixtures of protium and deuterium oxides) for hydrolysis of substrates of varying structure by trypsins from four different sources has been used as a signal of transition-state stabiliza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57ca0830ac724257cc68c5b99cbd885c
https://doi.org/10.1002/bbpc.19981020342
https://doi.org/10.1002/bbpc.19981020342
Publikováno v:
Canadian Journal of Chemistry. 74:931-938
Phosphoryl transfer to methanol from tris(p-nitrophenyl) phosphate (PNNN), methyl bis(p-nitrophenyl) phosphate (PMNN), and dimethyl p-nitrophenyl phosphate (PMMN) exhibits general base catalysis by acetate ion but no detectable catalysis by acetic ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1956f9259011f6d64bc91cf5a4776ead
https://doi.org/10.1139/v96-102
https://doi.org/10.1139/v96-102
Publikováno v:
Bioorganic & Medicinal Chemistry. 2:691-695
Deuterium oxide at atom fractions of deuterium from 0.0 to 0.97 has an effect of less than 20% on the kinetic term kcat/KmB (believed to reflect the transition state for the hydride-transfer step) for the reduction of pyruvic acid by NADH at 55 degre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8e1f1c909e21450130dff74c5e5d23f
https://doi.org/10.1016/0968-0896(94)85019-4
https://doi.org/10.1016/0968-0896(94)85019-4
Publikováno v:
Pure and Applied Chemistry. 66:695-702
The lactate dehydrogenase of Bacillus stearothermoohilus exists in dimeric and tetrameric forms, the latter favored by the regulatory effector, fructose-1,6bisphosphate. The kinetic behavior of the two forms is different, the tetramer showing activat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de9b104517032fbe528ce7aba12a88bc
https://doi.org/10.1351/pac199466040695
https://doi.org/10.1351/pac199466040695
Autor:
K. Barbara Schowen, Richard L. Schowen
Publikováno v:
Encyclopedia of Catalysis
Isotopic methods in the study of biocatalysis are chiefly used to characterize the mechanisms by which enzymes catalyze their target reactions. The techniques in use include tracer methods, by which the positions of individual atoms in a starting mol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e71b1343151c8257c2a9f4709cd712ed
https://doi.org/10.1002/0471227617.eoc124
https://doi.org/10.1002/0471227617.eoc124
Publikováno v:
eLS
Thiamin diphosphate is the active form of thiamin (vitamin B1) required as an enzyme cofactor to assist in fission and formation of carbon–carbon bonds in biosynthetic and bioenergetic reactions. Keywords: Thiamin; vitamin B1; enzyme cofactor; bioe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::654f6a5427b191dd87ac2bafdcf0f120
https://doi.org/10.1038/npg.els.0000651
https://doi.org/10.1038/npg.els.0000651