Mitogen-dependent Induction of Histidine Decarboxylase in Cultured Mouse Macrophages
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چکیده
منابع مشابه
Pyridoxal 5”Phosphate-dependent Histidine Decarboxylase
Pyridoxal phosphate-dependent histidine decarboxylase from Morganella morganii AM-15 was inactivated by (a-a-fluoromethylhistidine by a pseudo firstorder reaction, with KI and kinact values of 0 . 1 mM and 32.2 min-l, respectively, and was most efficient at pH 6.5-7.0. Both L-histidine and the competitive inhibitor, L-histidine methyl ester, protected against inactivation. The apoenzyme was not...
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Histidine decarboxylase was purified 800-fold from the kidneys of thyroxine-treated mice. The purification procedure included precipitation of protein from a crude supernatant after heating it to 55 degrees C at pH 5.5, fractionation with (NH4)2SO4, phosphocellulose column chromatography, chromatofocusing, DEAE-Sepharose column chromatography, gel filtration on Sephacryl S-300 and preparative p...
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With a modification of Taylor's decarboxylation broth, histidine decarboxylase was detected in Enterobacter aerogenes, Morganella morganii, Raoultella ornithinolytica, and some strains of Citrobacter youngae and Raoultella planticola. This method provides a useful confirmatory test for identification of E. aerogenes strains.
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During the latter part of pregnancy, the foetal rat produces large quantities of histamine which may be concerned with the growth of the foetus (Kahlson and Rosengren, 1959). Kahlson (1960) reported increased formation of histamine by the human foetus as well: recently Davis (1961) suggested that the antagonism of such excess histamine might account for the beneficial effect of an antihistamine...
متن کاملMOLECULAR MODELING AND NMR STUDY OF HISTDINIE AND ITS ANALOGUES AS , PYRIDOXAL 5 '-PHOSPHATE DEPENDENT HISTIDINE DECARBOXYLASE INHIBITORS
Molecular modeling analysis of charge density and heat of fornation by PM3 method as well as C, H NMR and 2D-NMR measurements of histidine (substrate) and some of its derivatives as histidine decarboxylase inhibitors were performed. It was established that the atom, usually nitrogen, which forms internal aldimine with pyridoxal5 -phosphate (PLP), (coenzyme), has negative and almost equal ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1987
ISSN: 0002-1369
DOI: 10.1080/00021369.1987.10868163