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. 1989 Jul;171(7):4067–4070. doi: 10.1128/jb.171.7.4067-4070.1989

Isolation of nit-4, the minor nitrogen regulatory gene which mediates nitrate induction in Neurospora crassa.

Y H Fu 1, J Y Kneesi 1, G A Marzluf 1
PMCID: PMC210163  PMID: 2567729

Abstract

Expression of nitrate reductase in Neurospora crassa requires the positive action of nit-4, a pathway-specific regulatory gene, which mediates nitrate induction. We report the molecular cloning of the nit-4 gene and present results which suggest that the nit-4 gene is constitutively expressed to yield a low-abundance 2.2-kilobase transcript. These results indicate that the nit-2 major control gene and the nit-4 pathway-specific control gene independently regulate the expression of the nitrate assimilatory structural genes.

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Selected References

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  1. Aviv H., Leder P. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc Natl Acad Sci U S A. 1972 Jun;69(6):1408–1412. doi: 10.1073/pnas.69.6.1408. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bahns M., Garrett R. H. Demonstration of de novo synthesis of Neurospora crassa nitrate reductase during induction. J Biol Chem. 1980 Jan 25;255(2):690–693. [PubMed] [Google Scholar]
  3. Birnboim H. C., Doly J. A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic Acids Res. 1979 Nov 24;7(6):1513–1523. doi: 10.1093/nar/7.6.1513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Cove D. J. Chlorate toxicity in Aspergillus nidulans. Studies of mutants altered in nitrate assimilation. Mol Gen Genet. 1976 Jul 23;146(2):147–159. doi: 10.1007/BF00268083. [DOI] [PubMed] [Google Scholar]
  5. Fu Y. H., Marzluf G. A. Characterization of nit-2, the major nitrogen regulatory gene of Neurospora crassa. Mol Cell Biol. 1987 May;7(5):1691–1696. doi: 10.1128/mcb.7.5.1691. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Fu Y. H., Marzluf G. A. Metabolic control and autogenous regulation of nit-3, the nitrate reductase structural gene of Neurospora crassa. J Bacteriol. 1988 Feb;170(2):657–661. doi: 10.1128/jb.170.2.657-661.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Fu Y. H., Marzluf G. A. Molecular cloning and analysis of the regulation of nit-3, the structural gene for nitrate reductase in Neurospora crassa. Proc Natl Acad Sci U S A. 1987 Dec;84(23):8243–8247. doi: 10.1073/pnas.84.23.8243. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Hurlburt B. K., Garrett R. H. Nitrate assimilation in Neurospora crassa: enzymatic and immunoblot analysis of wild-type and nit mutant protein products in nitrate-induced and glutamine-repressed cultures. Mol Gen Genet. 1988 Jan;211(1):35–40. doi: 10.1007/BF00338390. [DOI] [PubMed] [Google Scholar]
  9. Marzluf G. A. Regulation of nitrogen metabolism and gene expression in fungi. Microbiol Rev. 1981 Sep;45(3):437–461. doi: 10.1128/mr.45.3.437-461.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Perrine K. G., Marzluf G. A. Amber nonsense mutations in regulatory and structural genes of the nitrogen control circuit of Neurospora crassa. Curr Genet. 1986;10(9):677–684. doi: 10.1007/BF00410916. [DOI] [PubMed] [Google Scholar]
  11. Premakumar R., Sorger G. J., Gooden D. Nitrogen metabolite repression of nitrate reductase in Neurospora crassa. J Bacteriol. 1979 Mar;137(3):1119–1126. doi: 10.1128/jb.137.3.1119-1126.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Premakumar R., Sorger G. J., Gooden D. Physiological characterization of a Neurospora crassa mutant with impaired regulation of nitrate reductase. J Bacteriol. 1980 Nov;144(2):542–551. doi: 10.1128/jb.144.2.542-551.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Rigby P. W., Dieckmann M., Rhodes C., Berg P. Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I. J Mol Biol. 1977 Jun 15;113(1):237–251. doi: 10.1016/0022-2836(77)90052-3. [DOI] [PubMed] [Google Scholar]
  14. SORGER G. J. SIMULTANEOUS INDUCTION AND REPRESSION OF NITRATE REDUCTASE AND TPNH CYTOCHROME REDUCTASE IN NEUROSPORA CRASSA. Biochim Biophys Acta. 1965 May 18;99:234–245. doi: 10.1016/s0926-6593(65)80120-5. [DOI] [PubMed] [Google Scholar]
  15. Sorger G. J., Giles N. H. Genetic control of nitrate reductase in Neurospora crassa. Genetics. 1965 Oct;52(4):777–788. doi: 10.1093/genetics/52.4.777. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Sorger G. J. Nitrate reductase electron transport systems in mutant and in wild-type strains of Neurospora. Biochim Biophys Acta. 1966 Jun 15;118(3):484–494. doi: 10.1016/s0926-6593(66)80091-7. [DOI] [PubMed] [Google Scholar]
  17. Tomsett A. B., Garrett R. H. Biochemical analysis of mutants defective in nitrate assimilation in Neurospora crassa: evidence for autogenous control by nitrate reductase. Mol Gen Genet. 1981;184(2):183–190. doi: 10.1007/BF00272903. [DOI] [PubMed] [Google Scholar]
  18. Vollmer S. J., Yanofsky C. Efficient cloning of genes of Neurospora crassa. Proc Natl Acad Sci U S A. 1986 Jul;83(13):4869–4873. doi: 10.1073/pnas.83.13.4869. [DOI] [PMC free article] [PubMed] [Google Scholar]

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