Premium
Intron positions in actin genes seem unrelated to the secondary structure of the protein.
Author(s) -
Weber K.,
Kabsch W.
Publication year - 1994
Publication title -
the embo journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.484
H-Index - 392
eISSN - 1460-2075
pISSN - 0261-4189
DOI - 10.1002/j.1460-2075.1994.tb06380.x
Subject(s) - biology , intron , gene , genetics , actin , evolutionary biology
A catalogue of intron positions along the coding sequence was assembled from the large number of actin genes known for different eukaryotes. 36 positions in the amino acid sequence were compared with the known three‐dimensional structure of actin. At least 20 but not more than 23 intron positions are at the start or end of a secondary structural element (beta‐strand, alpha‐helix or 3/10 helix) while eight positions interrupt such an element. Statistical analysis shows that due to the large number of end positions the boundaries of secondary structural elements are not correlated with the intron positions. In addition, the observed intron pattern seems compatible with the null hypothesis, i.e. intron positions are randomly distributed along the actin sequence.