A mutation affecting the association equilibrium of formyltransferase from the hyperthermophilic Methanopyrus kandleri and its influence on the enzyme's activity and thermostability

Shima, Seigo and Thauer, Rudolf K. and Ermler, Ulrich and Durchschlag, Helmut and Tziatzios, Christos and Schubert, Dieter (2000) A mutation affecting the association equilibrium of formyltransferase from the hyperthermophilic Methanopyrus kandleri and its influence on the enzyme's activity and thermostability. EUROPEAN JOURNAL OF BIOCHEMISTRY, 267 (22). pp. 6619-6623. ISSN 0014-2956

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Abstract

Formyltransferase from Methanopyrus kandleri is composed of only one type of subunit of molecular mass 32 kDa. The enzyme is in a monomer/dimer/tetramer association equilibrium, the association constant being affected by lyotropic salts. Oligomerization is required for enzyme activity and thermostability. We report here on a subunit interface mutation (R261E) which affects the dimer/tetramer part of the association equilibrium of formyltransferase. With the mutant protein it was shown that tetramerization is not required for activity but is necessary for high thermostability.

Item Type: Article
Uncontrolled Keywords: TETRAHYDROMETHANOPTERIN FORMYLTRANSFERASE; ESCHERICHIA-COLI; SALT-DEPENDENCE; FORMYLMETHANOFURAN; PROTEIN; METHANOGENESIS; 110-DEGREES-C; EXPRESSION; MECHANISM; CLONING; formyltransferase; Methanopyrus kandleri; monomer/dimer/tetramer association equilibrium; site-directed mutagenesis
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 16 Mar 2022 16:33
Last Modified: 16 Mar 2022 16:33
URI: https://pred.uni-regensburg.de/id/eprint/42079

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