Molecular cloning and sequencing of the gene encoding an extracellular aspartic proteinase from Aspergillus fumigatus

Détails

ID Serval
serval:BIB_7D529ED2F794
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Molecular cloning and sequencing of the gene encoding an extracellular aspartic proteinase from Aspergillus fumigatus
Périodique
FEMS Microbiology Letters
Auteur⸱e⸱s
Reichard  U., Monod  M., Ruchel  R.
ISSN
0378-1097 (Print)
Statut éditorial
Publié
Date de publication
07/1995
Volume
130
Numéro
1
Pages
69-74
Notes
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Jul 15
Résumé
Oligonucleotide primers based on conserved regions of the aspergillopepsins (EC 3.4.23.18) were used to PCR amplify a 650 bp segment of the gene encoding the extracellular aspartic proteinase (PEP) from Aspergillus Fumigatus. The segment was used as a probe for isolating and sequencing the gene from a genomic library of the fungus. Likewise the cDNA was amplified by reverse PCR, cloned and sequenced. The pep gene was found to consist of four exons encoding for 395 aa. The pre-proenzyme deduced has an N-terminal leader sequence of 70 aa preceding the sequence of the mature enzyme consisting of 325 aa with a calculated molecular mass of 34.4 kDa and an isoelectric point of 3.95. The N-terminal sequence of the mature enzyme matched the N-terminal aa sequence of PEP exactly. The nucleotide and the aa sequences of the pre-proenzyme were 70% and 71% homologous to the corresponding sequences of the aspergillopepsin from A. niger var. awamori. Southern analysis of digested genomic A. fumigatus DNA with a specific PCR probe suggested the presence of a single copy of the pep gene.
Mots-clé
Amino Acid Sequence Aspartic Endopeptidases/chemistry/*genetics Aspergillus fumigatus/enzymology/*genetics Base Sequence Cloning, Molecular DNA, Fungal/analysis Genes, Fungal/*genetics Isoelectric Point Molecular Sequence Data Molecular Weight Protein Sorting Signals/genetics Sequence Analysis, DNA Sequence Homology, Amino Acid
Pubmed
Web of science
Création de la notice
25/01/2008 16:47
Dernière modification de la notice
20/08/2019 14:38
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