Molecular cloning and characterization of two hsp 70 homologous genes from the dimorphic fungus Paracoccidioides brasiliensis. 2003

Alvaro M Floréz, and Adona Oviedo, and Astrid Cardona, and Mónica Herrera, and Edwin García, and Angela Restrepo, and Juan G McEwen
Corporación Ciencias Básicas Biomédicas, Universidad de Antioquia, Medellín, Colombia.

Paracoccidioides brasiliensis, a dimorphic fungus, is the etiologic agent of Paracoccidioidomycosis (PCM), one of the most important systemic mycosis in Latin America. Two genes (2.2 and 1DB5) were cloned, characterized and sequenced; they showed homology with members of hsp70 gene family. By using several probe fragments derived from these genes, levels of expression for each gene were determined by Northern blot during transition to the yeast phase. The highest level of hsp70 transcript occurred between 30 min to 6 hours after temperature shift, with significant reduction after 36-48 hours. However, after 72 hours, the level of the transcription increased until yeast phase was reached. As a response to temperature increase, hsp 70 genes are expressed during the transition phase and possibly play a role in the differentiation process.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010228 Paracoccidioides A mitosporic fungal genus. P. brasiliensis (previously Blastomyces brasiliensis) is the etiologic agent of PARACOCCIDIOIDOMYCOSIS. Blastomyces brasiliensis,Loboa loboi,Paracoccidioides brasiliensis
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D005800 Genes, Fungal The functional hereditary units of FUNGI. Fungal Genes,Fungal Gene,Gene, Fungal
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D018840 HSP70 Heat-Shock Proteins A class of MOLECULAR CHAPERONES found in both prokaryotes and in several compartments of eukaryotic cells. These proteins can interact with polypeptides during a variety of assembly processes in such a way as to prevent the formation of nonfunctional structures. Heat-Shock Proteins 70,Heat Shock 70 kDa Protein,Heat-Shock Protein 70,HSP70 Heat Shock Proteins,Heat Shock Protein 70,Heat Shock Proteins 70,Heat-Shock Proteins, HSP70

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