ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In our analysis we have treated all amino-acids equi-valently. Although in certain cases rare aminoacids such as cysteine or tryptophan may tend to be maintained through phylogeny, these usually make up such a small percentage of the total amino-acid composition that this tendency does not ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/2191166a0
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