Abstract
The inducible extracellular alkaline protease of Neurospora crassa was demonstrated to be a glycoprotein containing D-galactose residues by use of the enzyme-lectin conjugate horseradish peroxidase-Ricinus communis-agglutinin-120. The carbohydrate moiety of the protease appears to be a poor antigen since an antiserum made to the native enzyme recognizes epitopes determined only by the polypeptide portion of the enzyme. Immunochemical techniques were used to quantitatively precipitate protease labeled in vivo for electrophoretic analysis. Protease synthesis could not be detected in control, uninduced cultures, whereas ca. 0.4% of total cellular protein synthesis is devoted to protease formation under inducing conditions.
Full text
PDF





Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Drucker H. Regulation of exocellular proteases in Neurospora crassa: induction and repression of enzyme synthesis. J Bacteriol. 1972 Jun;110(3):1041–1049. doi: 10.1128/jb.110.3.1041-1049.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Grove G., Marzluf G. A. Identification of the product of the major regulatory gene of the nitrogen control circuit of Neurospora crassa as a nuclear DNA-binding protein. J Biol Chem. 1981 Jan 10;256(1):463–470. [PubMed] [Google Scholar]
- Grove G., Marzluf G. A. Nitrogen regulation of acid phosphatase in Neurospora crassa. J Bacteriol. 1980 Mar;141(3):1470–1473. doi: 10.1128/jb.141.3.1470-1473.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hanson M. A., Marzluf G. A. Control of the synthesis of a single enzyme by multiple regulatory circuits in Neurospora crassa. Proc Natl Acad Sci U S A. 1975 Apr;72(4):1240–1244. doi: 10.1073/pnas.72.4.1240. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kessler S. W. Rapid isolation of antigens from cells with a staphylococcal protein A-antibody adsorbent: parameters of the interaction of antibody-antigen complexes with protein A. J Immunol. 1975 Dec;115(6):1617–1624. [PubMed] [Google Scholar]
- Lindberg R. A., Drucker H. Regulation of a Neurospora crassa extracellular RNase by phosphorus, nitrogen, and carbon derepressions. J Bacteriol. 1984 Feb;157(2):380–384. doi: 10.1128/jb.157.2.380-384.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lindberg R. A., Eirich L. D., Price J. S., Wolfinbarger L., Jr, Drucker H. Alkaline protease from Neurospora crassa. Purification and partial characterization. J Biol Chem. 1981 Jan 25;256(2):811–814. [PubMed] [Google Scholar]
- MATILE P. INTRAZELLULAERE LOKALISATION PROTEOLYTISCHER ENZYME VON NEUROSPORA CRASSA. I. FUNKTION UND SUBZELLULAERE VERTEILUNG PROTEOLYTISCHER ENZYME. Z Zellforsch Mikrosk Anat. 1965 Mar 16;65:884–896. [PubMed] [Google Scholar]
- Marzluf G. A., Metzenberg R. L. Positive control by the cys-3 locus in regulation of sulfur metabolism in Neurospora. J Mol Biol. 1968 Apr 28;33(2):423–437. doi: 10.1016/0022-2836(68)90199-x. [DOI] [PubMed] [Google Scholar]
- Nicolson G. L., Blaustein J. The interaction of Ricinus communis agglutinin with normal and tumor cell surfaces. Biochim Biophys Acta. 1972 May 9;266(2):543–547. doi: 10.1016/0005-2736(72)90109-5. [DOI] [PubMed] [Google Scholar]
- O'Farrell P. H. High resolution two-dimensional electrophoresis of proteins. J Biol Chem. 1975 May 25;250(10):4007–4021. [PMC free article] [PubMed] [Google Scholar]
- Renart J., Reiser J., Stark G. R. Transfer of proteins from gels to diazobenzyloxymethyl-paper and detection with antisera: a method for studying antibody specificity and antigen structure. Proc Natl Acad Sci U S A. 1979 Jul;76(7):3116–3120. doi: 10.1073/pnas.76.7.3116. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Subramanian K. N., Sorger G. J. Regulation of nitrate reductase in Neurospora crassa: regulation of transcription and translation. J Bacteriol. 1972 May;110(2):547–553. doi: 10.1128/jb.110.2.547-553.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tomsett A. B., Garrett R. H. The isolation and characterization of mutants defective in nitrate assimilation in Neurospora crassa. Genetics. 1980 Jul;95(3):649–660. doi: 10.1093/genetics/95.3.649. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Towbin H., Staehelin T., Gordon J. Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets: procedure and some applications. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350–4354. doi: 10.1073/pnas.76.9.4350. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wang L. W., Marzluf G. A. Nitrogen regulation of uricase synthesis in Neurospora crassa. Mol Gen Genet. 1979 Nov;176(3):385–392. doi: 10.1007/BF00333102. [DOI] [PubMed] [Google Scholar]

