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1997 (1)
1Author    Hans-Jürgen Tiburzy, RichardJ. BerzbornRequires cookie*
 Title    Subunit II (b') and Not Subunit I (b) of Photosynthetic ATP Synthases is Equivalent to Subunit b of the ATP Synthases from Nonphotosynthetic Eubacteria. Evidence for a New Assignment of b-Type F0 Subunits  
 Abstract    Subunit I of chloroplast ATP synthase is reviewed until now to be equivalent to subunit b of Escherichia coli ATP synthase, whereas subunit II is suggested to be an additional subunit in photosynthetic ATP synthases lacking a counterpart in E. coli. A fter publication of some sequences of subunits II a revision of this assignment is necessary. Based on the analysis of 51 amino acid sequences of b-type subunits concerning similarities in primary structure, iso­ electric point and a discovered discontinuous structural feature, our data provide evidence that chloroplast subunit II (subunit b' of photosynthetic eubacteria) and not chloroplast subunit I (subunit b of photosynthetic eubacteria) is the equivalent of subunit b of nonphoto­ synthetic eubacteria, and therefore does have a counterpart in e.g. E. coli. In consequence, structural features essential for function should be looked for on subunit II (b'). 
  Reference    Z. Naturforsch. 52c, 789—798 (1997); received August 1 1997 
  Published    1997 
  Keywords    Chloroplast, Coupling Factor, Stalk, Cyanobacteria 
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 TEI-XML for    default:Reihe_C/52/ZNC-1997-52c-0789.pdf 
 Identifier    ZNC-1997-52c-0789 
 Volume    52