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[On the mechanism of inhibition of mitochondrial glutamate-oxalacetate-transaminase in SO2-fumigated peas].

作者信息

Pahlich E

机构信息

Lehrstuhl II (Pflanzenökologie), Botanisches Institut der Justus Liebig-Universität, Senckenbergstr. 17-21, D-6300, Gießen, Bundesrepublik Deutschland.

出版信息

Planta. 1973 Sep;110(3):267-78. doi: 10.1007/BF00387638.

DOI:10.1007/BF00387638
PMID:24474403
Abstract

The effect of SO2-fumigation on the mitochondrial and cytoplasmic form of GOT in peas has been tested. GOT is represented by two distinct proteins in peas and therefore its activity may be taken as a measure of action of certain effectors on different components of the cell. An optical method for the direct measurement of GOT activity in crude plant extracts has been established. Using this method it could be shown that the mitochondrial GOT in SO2-fumigated peas is inhibited while at the same time the cytoplasmic form of the enzyme remains uneffected. The mechanism of inhibition of mitochondrial GOT by SO 3 (--) /HSO 3 (-) has been analyzed and could be shown to be of the mixed type. This investigation confirms an earlier observation that differential effects of SO2 on single compartments of the cell may occur.

摘要

相似文献

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引用本文的文献

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本文引用的文献

1
[Influence of SO on the amino acid metabolism of pea seedlings].
Oecologia. 1972 Jun;9(2):135-140. doi: 10.1007/BF00345878.
2
[Allosteric regulation of the activity of glutamate dehydrogenase from pea seedlings by the substrate α-ketoglutarate].[底物α-酮戊二酸对豌豆幼苗谷氨酸脱氢酶活性的变构调节]
Planta. 1971 Sep;100(3):222-7. doi: 10.1007/BF00387038.
3
[Evidence that the multiple molecular forms of glutamate dehydrogenase from pea seedlings are conformers].[豌豆幼苗谷氨酸脱氢酶多种分子形式为构象异构体的证据]
Planta. 1972 Mar;104(1):78-88. doi: 10.1007/BF00387685.
4
Properties of Higher Plant Mitochondria. I. Isolation and Some Characteristics of Tightly-coupled Mitochondria from Dark-grown Mung Bean Hypocotyls.高等植物线粒体的特性。I. 黑暗生长的绿豆下胚轴紧密偶联线粒体的分离及某些特性
Plant Physiol. 1967 Jan;42(1):67-75. doi: 10.1104/pp.42.1.67.
5
Glutamic aspartic transaminase. I. Assay, purification, and general properties.谷氨酸天冬氨酸转氨酶。I. 测定、纯化及一般性质。
J Biol Chem. 1959 Jan;234(1):51-7.
6
Mechanisms in enzymatic transamination; variables in the spectrophotometric estimation of glutamate-aspartate kinetics.
J Biol Chem. 1952 Dec;199(2):699-711.
7
[Effect of sulfur dioxide on the content of free sugars and amino acids in germinating pea plants].[二氧化硫对发芽豌豆植株中游离糖和氨基酸含量的影响]
Experientia. 1970 Jun 15;26(6):604-5. doi: 10.1007/BF01898712.