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Default Nucleotide sequence and analysis of NMR, a negative-acting regulatory gene in the nit

Nucleotide sequence and analysis of NMR, a negative-acting regulatory gene in the nitrogen circuit of Neurospora crassa.

Related Articles Nucleotide sequence and analysis of NMR, a negative-acting regulatory gene in the nitrogen circuit of Neurospora crassa.

Mol Gen Genet. 1990 Jun;222(1):120-8

Authors: Young JL, Jarai G, Fu YH, Marzluf GA

In Neurospora the expression of a set of unlinked structural genes, which allows utilization of various nitrogen-containing compounds, is controlled by the positive-acting nit-2 gene and the negative-acting nmr gene. The nucleotide sequence of the nmr gene has been determined and a long open reading frame which encodes a putative protein of 54854 daltons has been identified. A full-length cDNA clone was obtained and its the sequence revealed that the nmr gene contains no introns. The transcriptional start and stop sites have been mapped by S1 nuclease and primer extension. Site-directed mutagenesis was used to introduce stop codons at various locations in the nmr coding region. Transformation assays showed that the proteins lacking up to 16% of the carboxyl-terminus were still functional. Homology searches showed that the nmr protein is homologous to the yeast arginine regulatory gene AR-GRII.

PMID: 2146484 [PubMed - indexed for MEDLINE]



Source: PubMed
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