ArticleJournal of molecular evolution1994
The Dictyostelium discoideum mitochondrial genome: a primordial system using the universal code and encoding hydrophilic proteins atypical of metazoan mitochondrial DNA.
Article in Journal of molecular evolution, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Genes encoding the same three subunits of respiratory complex II are present in the mitochondrial DNA of two phylogenetically distant eukaryotes.Proceedings of the National Academy of Sciences of the United States of America · 1996Article
- Dictyostelium discoideum mitochondrial DNA encodes a NADH:ubiquinone oxidoreductase subunit which is nuclear encoded in other eukaryotes.Journal of molecular evolution · 1995Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A 3,345-bp fragment of Dictyostelium discoideum mitochondrial DNA (mtDNA) has been sequenced. This fragment contained the 80-kDa subunit of complex I (NADH:ubiquinone oxidoreductase), encoding a predicted amino acid sequence of 688 residues and a molecular mass of 79,805 daltons which is nuclear encoded in other metazoa. The C-terminus of the D. discoideum complex I gene shared a 10-bp overlap with NADH:ubiquinone oxidoreductase chain 5 (ND5), while 21 bp 5' were three tRNA genes (two isoleucine and a histidine) and a further 25 bp 5' of these genes is the partial sequence (104 residues) of an unidentified open reading frame (ORF104). Both the 80-kDa subunit and the ORF104 were hydrophilic and highly charged, suggesting they are not membrane associated, unlike most mitochondrially encoded proteins in the metazoa. Sequence analysis of the 80-kDa subunit, its adjacent ND5 gene, and ORF104 indicates the universal stop codon TGA, which codes for tryptophan in nearly all nonplant mtDNA, is either unassigned or coding for a stop codon in D. discoideum. The large size of the mitochondrial genome (54 kb), the lack of intergenic sequence, and the apparent use of the universal code suggest D. discoideum mtDNA may encode many primitive genes that are nuclear encoded in higher organisms.
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