Nitrogen source regulates glutamine synthetase mRNA levels in Neurospora crassa
Neurospora
0303 health sciences
03 medical and health sciences
Cell-Free System
Glutamates
Neurospora crassa
Glutamate-Ammonia Ligase
Glutamine
RNA
RNA, Messenger
Poly A
DOI:
10.1128/jb.136.3.880-885.1978
Publication Date:
2020-01-03T16:27:38Z
AUTHORS (6)
ABSTRACT
Neurospora crassa glutamine synthetase mRNA was measured by its capacity to direct the synthesis of the specific protein in a cell-free system derived from rabbit reticulocytes. N. crassa cultures grown on glutamate as the sole nitrogen source had higher mRNA activities than did those grown on glutamine. The differences were about 10-fold when polysomal RNA was used for translation and about 5-fold when either total cellular RNA or polyadenylic acid-enriched cellular RNA was used. These data indicate that in exponentially growing N. crassa, the nitrogen source regulates glutamine synthetase by adjusting specific mRNA levels.
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