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Viral concentrates (VCs), containing bioinformative DNA and proteins, have been used to study viral diversity, viral metagenomics and virus–host interactions in natural ecosystems. Besides viruses, VCs also contain many noncellular biological components including diverse functional proteins. Here, we used a shotgun proteomic approach to characterize the proteins of VCs collected from the oligotrophic...
A 2-D graphical representation of protein sequences based on two classifications of amino acids is outlined. The method of dividing a long sequence into k segments (SSM) is introduced, so protein graph is divided into k segments, geometrical center of the points for all protein curve segment is given as descriptors of protein sequences. It is not only useful for comparative study of proteins, but...
Based on the selected chemical and physical properties of amino acids, a dynamic 3-D graphical representation of protein sequences is outlined. We introduce the numerical characterization of protein graphs as descriptors to analyze and compare the nine ND5 proteins, and the results consist with the known fact of evolution. The graph of protein sequences have good visibility, the approach is simple,...
Persimmon is a commercially important fruit crop, and the fruit is rich in different kinds of bioactive compounds, among which carotenoids contribute significantly to its color and nutritional value. In this study, the cDNA of phytoene desaturase gene (PDS) was isolated by rapid amplification of cDNA ends (RACE) technique. Sequence analysis indicated that the full-length cDNA of PDS was 2064 bp, encoding...
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