Results 271 to 280 of about 355,555 (310)
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Enzymic Synthesis of Li:gnin Precursors
European Journal of Biochemistry, 1982UDPglucose :coniferyl‐alcohol glucosyltransferase was isolated from cambial sap of spruce (Picea abies). An apparently homogeneous enzyme was obtained by a seven‐step procedure including dye‐ligand chromatography. The enzyme has an Mr, of about 50000 and consists of one polypeptide chain.
G, Schmid, H, Grisebach
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[5] Overexpression of neuropeptide precursors and processing enzymes
1995Publisher Summary This chapter discusses the overexpression of neuropeptide precursors and processing enzymes. It is reported that the dihydrofolate reductase (DHFR)-coupled amplification method is a reliable and relatively straightforward way to overexpress a variety of different protein precursors.
Iris Lindberg, Yi Zhou
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Enzymic synthesis of aspartame precursors from eutectic substrate mixtures
Process Biochemistry, 2001Abstract The precursor of aspartame N -benzyloxycarbonyl- l -aspartic acid- l -phenylalanine methyl ester ( N -CBZ- l -Asp- l -PheOMe) was synthesized using thermolysin from eutectic mixtures of the substrates N -benzyloxycarbonyl- l -aspartic acid ( N -CBZ- l -Asp) and l -phenylalanine methyl ester ( l -PheOMe).
Jung Eun Ahn +2 more
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“Secretase,” Alzheimer amyloid protein precursor secreting enzyme is not sequence-specific
Biochemical and Biophysical Research Communications, 1991The major pathological change in Alzheimer's disease is the deposition of amyloid beta/A4-protein (beta P) in the brain. beta P is derived from a small part of the much larger amyloid protein precursor (APP). In the normal condition, APP is cleaved in the interior of beta P, preventing the formation of beta P, by a hypothetical proteinase "secretase ...
K, Maruyama +4 more
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Proteolytic enzymes in the post-translational processing of polypeptide hormone precursors
Neurochemical Research, 1987Selective and limited proteolysis is a key step in the post-translational modification of peptide hormone precursors. This process appears to involve a proteolytic machinery including highly specific endoproteases. Some of the enzyme systems possibly involved in the processing of pro-neuropeptides will be described and their mechanism of action ...
P, Gluschankof, P, Cohen
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Small gut mucosal activities of pyrimidine precursor enzymes in celiac disease
Gastroenterology, 1969Summary The increased mitotic cell count in the small intestinal mucosa in celiac disease has given rise to question as to whether increased cell turnover or prolonged mitosis were occurring. Two enzymes in the pyrimidine biosynthetic pathway, aspartate carbamoyl transferase and dihydroorotate dehydrogenase, have been measured in rat and human ...
M L, Clark, J R, Senior
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Enzymic synthesis of lignin precursors
Archives of Biochemistry and Biophysics, 1976Jonathan Poulton +2 more
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ANATOMICAL STUDIES OF NEUROPEPTIDE PRECURSOR PROCESSING ENZYMES
Clinical Neuropharmacology, 1992S J, Watson +5 more
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Renin: structural features of active enzyme and inactive precursor.
Federation proceedings, 1983To determine the structural basis for the unique catalytic mechanism of renin and the mechanism of activation of inactive renin, renin and inactive renin were isolated in pure form. The active site of renin consists of two aspartyl residues, two tyrosyl residues, and one arginyl residue, analogous to pepsin and other acid proteases.
T, Inagami +5 more
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Angiotensin-converting enzyme and the amyloid precursor protein secretases
Biochemical Society Transactions, 1999N M, Hooper +3 more
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