Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:1.6.99.3 (diaphorase)
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In this paper, we present the nucleotide sequence of a 5248 bp-long region of the mitochondrial (mt) genome of the dermatophyte Trichophyton rubrum. This region which represents about 1/4 of the total mt genome of this species reveals a compact organization of genes including: the glutaminyl tRNA, the methionyl tRNA, the cytochrome oxidase subunit I gene, the arginyl tRNA, the mitochondrial version of the ATPase subunit 9 gene, the cytochrome oxidase subunit II gene and a part of the NADH dehydrogenase ND4L and ND5 gene "complex". The main features of the part of mt DNA sequenced is the non-interrupted COXI gene and the presence in the mitochondrial version of the ATPase 9 gene of a small group IA intron. The extensive amino-acid sequence similarity with the equivalent gene in Aspergillus nidulans and Neuropora crassa indicates that this gene codes for a dicyclohexylcarbodiimide binding protein. The conserved arrangement of this portion of the mt genome and the presence of tRNAs between the protein-coding genes are compatible with a large polycistronic transcript processed by the excision of tRNAs, or similar secondary structures, as proposed for other fungal or mammalian mt DNAS.
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PMID:Mitochondrial DNA sequence analysis of the cytochrome oxidase subunit I and II genes, the ATPase9 gene, the NADH dehydrogenase ND4L and ND5 gene complex, and the glutaminyl, methionyl and arginyl tRNA genes from Trichophyton rubrum. 132 16

We have sequenced a region (7,376-bp) of the mitochondrial (mt) DNA (54 kb) of the cellular slime mold, Dictyostelium discoideum. From the DNA and amino-acid sequence comparisons with known sequences, genes for ATPase subunit 9 (ATP9), cytochrome b (CYTB), NADH dehydrogenase subunits 1, 3 and 6 (ND1, ND3 and ND6), small subunit rRNA (SSU rRNA) and seven tRNAs (Arg, Asn, Cys, Lys, f-Met, Met and Pro) have been identified. The sequenced region of the mtDNA has a high average A + T-content (70.8%). The A + T-content of protein-genes (73.6%) is considerably higher than that of RNA genes (61.3%). Even with the strong AT-bias, the genetic code employed is most probably the universal one. All seven tRNAs are able to form typical clover leaf structures. The molecular phylogenetic trees of CYTB and SSU rRNA suggest that D. discoideum is closer to green plants than to animals and fungi.
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PMID:Codon usage, genetic code and phylogeny of Dictyostelium discoideum mitochondrial DNA as deduced from a 7.3-kb region. 773 10