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Elsevier Science

Gene. 1990 Jun 15;90(2):227-33. doi: 10.1016/0378-1119(90)90184-s.

Nucleotide sequence and transcripts of the pea chloroplast gene encoding CFo subunit III of ATP synthase.


A K Huttly, A L Plant, A L Phillips, A D Auffret, J C Gray


  1. Botany School, University of Cambridge, U.K.

PMID: 2129529 DOI: 10.1016/0378-1119(90)90184-s


The structure and expression of the pea chloroplast atpH gene, encoding ATP synthase CFo subunit III, have been investigated. The atpH gene is situated between the atpI and atpF genes for CFo subunits IV and I, and encodes a hydrophobic polypeptide of 81 amino acid residues which is very similar to subunit III from other species. Analysis of transcripts from the region of chloroplast DNA encoding ATP synthase subunits IV-III-I-alpha shows a complex pattern of transcription, with large transcripts potentially coding for several subunits and also smaller gene-specific transcripts. Two abundant transcripts of 660 nucleotides (nt) and 980 nt specific for atpH were identified. Primer extension and S1 nuclease protection mapping suggested that the 660-nt transcripts were produced by endonucleolytic processing at the sequence, 5'-UGGAAU.

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