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Molecular Comparison of the Mitochondrial and Cytoplasmic hsp 70 of Trypanosoma cruzi, Trypanosoma brucei and Leishmania major
Author(s) -
KLEIN KARIN G.,
OLSON CHERYL L.,
DONELSON JOHN E.,
ENGMAN DAVID M.
Publication year - 1995
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.1995.tb05893.x
Subject(s) - kinetoplast , biology , trypanosoma brucei , trypanosoma cruzi , kinetoplastida , cytoplasm , leishmania , trypanosoma , mitochondrial dna , crithidia fasciculata , mitochondrion , rna , microbiology and biotechnology , dna , virology , genetics , gene , parasite hosting , protozoal disease , world wide web , computer science , malaria , immunology
. We compared the expression and localization of the mitochondrial and cytoplasmic hsp70 of the protozoans Trypanosoma cruzi, Trypanosoma brucei and Leishmania major. The mitochondrial protein is encoded by multiple mRNA in all species, while the cytoplasmic protein is encoded by a single mRNA. In all three species, the mitochondrial hsp70 is concentrated in the kinetoplast, a submitochondrial structure that houses the unusual DNA (kDNA) that characterizes this group of organisms, while the cytoplasmic protein is distributed throughout the cell. These results suggest that, in all kinetoplastid species, mt‐hsp70 has a specific function in kDNA biology, possibly in the processes of kDNA replication, RNA editing or kinetoplast structure.