Similar amino acid sequences: chance or common ancestry?
The systemic comparison of every newly determined amino acid sequence with all other known sequences may allow a complete reconstruction of the evolutionary events leading to contemporary proteins. But sometimes the surviving similarities are so vague that even computer-based sequence comparisons procedures are unable to validate relationships. In other cases similar sequences may appear in totally alien proteins as a result of mere chance or, occasionally, by the convergent evolution of sequences with special properties.
D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D002352:Carrier Proteins / Q000235:genetics; D006801:Humans; D011506:Proteins / Q000145:classification / Q000235:genetics*; D012326:RNA Splicing; D012333:RNA, Messenger / Q000235:genetics; D013045:Species Specificity
D002352:Carrier Proteins; D011506:Proteins; D012333:RNA, Messenger