title: Neurospora crassa mitochondrial transfer RNAs.
abstract: Total mitochondrial tRNA from Neurospora crassa was characterized by base composition analysis, one- and two-dimensional gel electrophoreses and reversed-phase chromatography on RPC5. The guanosine + cytidine content was about 43%, as compared to 60% for cytoplasmic tRNA. The modified nucleoside content was low and about the same as that of total yeast mitochondrial tRNA, though the G + C content is very different. We found psi, T, hU, t6A, m1G, M2G, m22G. Neither the eukaryotic "Y" base, nor the prokaryotic s4U were present. On two-dimensional polyacrylamide gel electropherograms about 25 species were separated. One species for phenylalanine, two for leucine and two for methionine could be located. Neurospora crassa mitochondrial tRNA does not hybridize with yeast mitochondrial DNA.
mesh_terms: D004272:DNA, Mitochondrial; D008928:Mitochondria / Q000032:analysis*; D009492:Neurospora crassa / Q000032:analysis; D009693:Nucleic Acid Hybridization; D011687:Purines / Q000032:analysis; D011743:Pyrimidines / Q000032:analysis; D012343:RNA, Transfer / Q000302:isolation & purification; D012263:Ribonucleosides / Q000032:analysis
chemical_list: D004272:DNA, Mitochondrial; D011687:Purines; D011743:Pyrimidines; D012263:Ribonucleosides; D012343:RNA, Transfer