Pedinomonas minor  Mitochondrial genome organization, gene
content, genetic code  The circular mitochondrial genome of
Pedinomonas minor is only 25 kbp in size. Compared to other
protists, P. minor contains a reduced set of mitochondrial
genes, including the protein-coding genes cob, cox1,
nad1,2,3,4,4L,5, and atp6,8, but no ribosomal protein genes.
Structural RNA genes include rnl (large subunit rRNA) and rns
(small subunit) and genes for 10 tRNAs. These mtDNA-encoded
tRNAs are presumably supplemented by additional, imported,
nuclear DNA-encoded tRNAs to permit translation of all codons in
protein-coding genes. Transcribed genes are found on one DNA
strand only. The only apparent deviation from the standard
genetic code is UGA, which specifies tryptophan.  A novel
feature of this genome is the fact that the rnl gene is
fragmented into 2 pieces, rnl_a and rnl_b, which are located far
apart in the coding portion of the genome. The only intron in
this mtDNA (group II) is located in rnl_a.  The genes are
cluster