| Literature DB >> 656447 |
C D Cash, M Maitre, L Ossola, P Mandel.
Abstract
In human brain there are two major isoenzymes of succinate semialdehyde dehydrogenase (succinate-semialdehyde: NAD+ oxidoreductase, EC 1.2.1.24). They are composed of two apparently identical subunits with a molecular weight of 69 000. The Km (limits) for their substrates NAD+ and succinate semialdehyde are 1.6.10(-5) M and 3.7.10(-6) M, respectively, for one enzyme, and 1.85.10(-5) M and 2.10(-6) M, respectively, for the other. These values, and other kinetic data obtained from the two enzymes are not very different. However the enzymes differ in the following respects: their behavior on ion exchange and 5'-AMP affinity columns, their isoelectric points, their tryptic fingerprints and in their amino acid compositions.Entities:
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Year: 1978 PMID： 656447 DOI： 10.1016/0005-2744(78)90099-2
Source DB: PubMed Journal: Biochim Biophys Acta ISSN： 0006-3002