1972
DOI: 10.1111/j.1432-1033.1972.tb01847.x
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Ornithine Carbamoyltransferase from Halobacterium salinarium

Abstract: The enzymatic properties of purified ornithine carbamoyltransferase from Halobacterium salinarium have been studied and compared with those of the enzyme from non-halophilic organisms, and with those of other enzymes from halophilic organisms.The enzyme is stable and active in high concentrations of NaCl, KC1, RbCl and CsCl as are other enzymes from halophilic organisms. No activity could be measured a t any concentrations of LiCl. The pH optimum for activity is similar for ornithine carbamoyltransferase from … Show more

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Cited by 12 publications
(7 citation statements)
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“…A halophilic OTCase has been isolated and characterized before (11,12). In contrast to the present study, the cultures were not grown fermentatively and arginine was not included in the medium.…”
Section: Resultscontrasting
confidence: 40%
“…A halophilic OTCase has been isolated and characterized before (11,12). In contrast to the present study, the cultures were not grown fermentatively and arginine was not included in the medium.…”
Section: Resultscontrasting
confidence: 40%
“…Arginine degradation to ornithine has been amply demonstrated by Dundas, and the key enzyme ornithine carbamoyltransferase from halobacteria has been isolated and characterized (5)(6)(7). We show in this paper that this pathway can be used in a fermentative manner producing ATP from ADP and carbamoylphosphate and that this also allows strictly anaerobic growth of the bacteria.…”
mentioning
confidence: 88%
“…In a few cases, these pathways have been confirmed by enzymatic assays. Thus, most of the enzymes for arginine biosynthesis via the ornithine acetyltransferase pathway (as opposed to the N-acetylglutamate synthase pathway) have been demonstrated (88,89,317). Some of the enzymes of the diaminopimelate pathway of lysine biosynthesis have also been demnonstrated in Methanobacterium sp.…”
Section: Biosynthetic Pathwaysmentioning
confidence: 99%