Nucleotide sequence of soybean chloroplast DNA regions which contain the psb A and trn H genes and cover the ends of the large single copy region and one end of the inverted repeats.
AUTOR(ES)
Spielmann, A
RESUMO
The soybean chloroplast psb A gene (photosystem II thylakoid membrane protein of Mr 32 000, lysine-free) and the trn H gene (tRNAHisGUG), which both map in the large single copy region adjacent to one of the inverted repeat structures (IR1), have been sequenced including flanking regions. The psb A gene shows in its structural part 92% sequence homology with the corresponding genes of spinach and N. debneyi and contains also an open reading frame for 353 aminoacids. The aminoacid sequence of a potential primary translation product (calculated Mr, 38 904, no lysine) diverges from that of spinach and N. debneyi in only two positions in the C-terminal part. The trn H gene has the same polarity as the psb A gene and the coding region is located at the very end of the large single copy region. The deduced sequence of the soybean chloroplast tRNAHisGUG is identical with that of Zea mays chloroplasts. Both ends of the large single copy region were sequenced including a small segment of the adjacent IR1 and IR2.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=326446Documentos Relacionados
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