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  • Title: The DNA sequence and genetic organization of a Neurospora mitochondrial plasmid suggest a relationship to introns and mobile elements.
    Author: Nargang FE, Bell JB, Stohl LL, Lambowitz AM.
    Journal: Cell; 1984 Sep; 38(2):441-53. PubMed ID: 6088081.
    Abstract:
    We have determined the complete 3581 bp sequence of the mitochondrial plasmid from Neurospora crassa strain Mauriceville-1c. The plasmid contains a long open reading frame that is expressed in its major transcript and could encode a hydrophilic protein of 710 amino acids. Two characteristics of the plasmid--codon usage and the presence of conserved sequence elements--suggest that it is related to Group I mtDNA introns. The major transcripts of the plasmid are approximately full-length, colinear RNAs that have heterogenous 5' ends and a single major 3' end. The major 5' and 3' ends are adjacent and slightly overlapping. The Mauriceville plasmid may belong to a class of genetic elements that were or are the progenitors of mtDNA introns.
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