this paper reports that two distantly related proteins of mr 30,000 that are encoded by different strains of tobacco mosaic virus both contain central sections whose amino acid sequences are 15 % to 23 % identical in a single alignment to those of one group of four intron-encoded proteins , and possess certain groups of conserved residues also characteristic of the mitochondrial proteins .
C0033684
proteins
C0949610
mitochondrial proteins