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. 1975 Nov 17;413(1):45-51.
doi: 10.1016/0005-2736(75)90057-7.

Isolation and characterization of a mutant of Neurospora crassa deficient in general amino acid permease activity

E Y Rao, T K Rao, A G Debusk

Isolation and characterization of a mutant of Neurospora crassa deficient in general amino acid permease activity

E Y Rao et al. Biochim Biophys Acta. .

Abstract

A mutant of Neurospora crassa (pm-nbg27) was isolated on the basis of its resistance of p-fluoro-phenylalanine on ammonium-deficient Vogel's medium. This mutant was found to be devoid of both conidial and post-conidial (after 180 min of preincubation) transport activity of all amino acids. Genetic analysis of pm-nbg27 by crossing it to wild-type (74A) resulted in the predicted segregants exhibiting transport characteristics of pm-n, pm-b, pm-g, pm-nb, pm-ng, pm-bg and parental types. The above observations confirm the postulated general amino acid permease system as well as a single genetic locus control of that activity.

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