Is there evidence of optimisation for carbon efficiency in plant proteomes?
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Chemical Engineering Program
Chemical and Biological Engineering Program
Computational Bioscience Research Center (CBRC)
Molecular Signalling Group
Online Publication Date2011-07-25
Print Publication Date2011-11
Permanent link to this recordhttp://hdl.handle.net/10754/561820
MetadataShow full item record
AbstractFlowering plants, angiosperms, can be divided into two major clades, monocots and dicots, and while differences in amino acid composition in different species from the two clades have been reported, a systematic analysis of amino acid content and distribution remains outstanding. Here, we show that monocot and dicot proteins have developed distinct amino acid content. In Arabidopsis thaliana and poplar, as in the ancestral moss Physcomitrella patens, the average mass per amino acid appears to be independent of protein length, while in the monocots rice, maize and sorghum, shorter proteins tend to be made of lighter amino acids. An examination of the elemental content of these proteomes reveals that the difference between monocot and dicot proteins can be largely attributed to their different carbon signatures. In monocots, the shorter proteins, which comprise the majority of all proteins, are made of amino acids with less carbon, while the nitrogen content is unchanged in both monocots and dicots. We hypothesise that this signature could be the result of carbon use and energy optimisation in fast-growing annual Poaceae (grasses). © 2011 German Botanical Society and The Royal Botanical Society of the Netherlands.
CitationJankovic, B., Seoighe, C., Alqurashi, M., & Gehring, C. (2011). Is there evidence of optimisation for carbon efficiency in plant proteomes? Plant Biology, 13(6), 831–834. doi:10.1111/j.1438-8677.2011.00494.x
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