Article
Episodic sitewise positive selection on the signal recognition particle protein Ffh in Actinobacteria.
FEBS letters - 24 Sept 2010
Shen Xue-Ling, Li Shan-Zhen, Li Yong-Quan, Chen Xin
Abstract excerpt
In this work, we report a case of episodic sitewise positive selection acting on the highly conserved SRP protein Ffh in Actinobacteria. An elevated non-synonymous to synonymous mutation ratio (ω) was observed along the non-terminal branches of the species tree, which contained 11 Actinobacteria species, where positively selected residues were frequently observed within the signal sequence-binding domain....
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