PMID: 7528198Dec 1, 1994Paper

Cloning of the hsp70 (dnaK) genes from Rhizobium meliloti and Pseudomonas cepacia: phylogenetic analyses of mitochondrial origin based on a highly conserved protein sequence

Journal of Bacteriology
M Falah, R S Gupta

Abstract

The genes for hsp70 (or dnaK) have been cloned and sequenced from Rhizobium meliloti and Pseudomonas cepacia, two bacterial species belonging to the alpha- and beta-subdivisions of gram-negative proteobacteria, respectively. On the basis of global alignment of HSP70 proteins, several sequence signatures have been identified that are distinctive of mitochondrial homologs and gram-negative proteobacteria on the one hand and the chloroplasts and cyanobacteria on the other. Detailed phylogenetic analyses of HSP70 sequences from various eubacteria and eukaryotic organellar and cytosolic homologs support the inference regarding the origin of mitochondria from a member of the alpha-proteobacteria and of chloroplasts from cyanobacteria. The analysis presented here also suggests a monophyletic origin of the mitochondrial homologs.

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Citations

Nov 7, 1998·Molecular Plant-microbe Interactions : MPMI·M L SummersT R McDermott
Apr 3, 1999·FEMS Microbiology Letters·J JyotA Ghosh
Dec 10, 1996·Proceedings of the National Academy of Sciences of the United States of America·A GermotH Le Guyader
Jan 1, 1996·Annual Review of Genetics·W M Huang
Mar 5, 2005·Applied and Environmental Microbiology·B D EardlyR K Selander
Aug 1, 1997·Molecular and Biochemical Parasitology·A GermotH Le Guyader
May 1, 1997·Applied and Environmental Microbiology·T Iizumi, K Nakamura

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