作者: Reiner A Veitia , Sandrine Caburet , None
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摘要: We show that the predicted signal peptide (SP) sequences of secreted factors GDF9, BMP15 and AMH are well conserved in mammals but dramatic divergence is noticed for more distant orthologs. Interestingly, bioinformatic predictions divergent protein segments do encode SPs. Thus, such SPs have undergone extensive sequence turnover with full preservation functionality. This can be explained by a pervasive accumulation neutral compensatory mutations. An exploration potential evolutionary landscape some presented. Some these highlight an apparent paradox: they encoded, definition, orthologous DNA are, given their striking divergence, examples what called functional convergence.