PMID: 2506358Sep 1, 1989Paper

Examination of protein sequence homologies: V. New perspectives on evolution between bacterial and chloroplast-type ferredoxins inferred from sequence evidence

Journal of Molecular Evolution
E Otaka, T Ooi

Abstract

Sequence homologies among 34 chloroplast-type ferredoxins were examined using a computer program that quantitatively evaluates the extent of sequence similarity as a correlation coefficient. The resultant alignment contains six gaps representing insertions or deletions of some residues, all of which are located such that they precisely preserve the domains of structural fragments as determined by crystallographic data on Spirulina platensis ferredoxin. In the search for any total correlation between the chloroplast-type and 27 bacterial ferredoxins, 1891 comparison matrices prepared for possible combinations indicated that the bacterial basal sequence of 55 residues has been conserved evolutionarily in the chloroplast-type sequences corresponding to residue positions 36-90 of Spirulina platensis ferredoxin. In addition, the bacterial "connector sequence" region was found to be conserved. These findings strongly suggest that the bacterial and chloroplast-type ferredoxins descended from a common ancestor, and branched off after the bacterial gene duplication, whereas the chloroplast-type ferredoxins originally were generated by duplicating the already duplicated bacterial gene, i.e., by "double-duplication."

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Citations

Dec 1, 1994·Journal of Molecular Evolution·A Lazcano, S L Miller
Jan 1, 1992·Progress in Biophysics and Molecular Biology·G Wächtershäuser
May 28, 2011·Journal of Biological Engineering·Buz BarstowEdwin H Wintermute
Nov 27, 2002·Bioscience, Biotechnology, and Biochemistry·Hideaki Nojiri, Toshio Omori
Dec 17, 2002·The Journal of General and Applied Microbiology·Hideaki NojiriToshio Omori
Feb 24, 2017·Journal of Inorganic Biochemistry·Shailender Kumar VermaYusuf Akhter
Mar 1, 1994·European Journal of Biochemistry·S M TownsonP Upcroft
Nov 20, 2016·Angewandte Chemie·M Luisa Romero RomeroDan S Tawfik
Oct 6, 1998·Applied and Environmental Microbiology·G BertoniP Barbieri

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