Locating well-conserved regions within a pairwise alignment
Department of Computer Science University Park, PA 16802, USA
1Department of Molecular and Cell Biology University Park, PA 16802, USA
2Center for Gene Regulation, The Pennsylvania State University University Park, PA 16802, USA
Within a single alignment of two DNA sequences or two protein sequences, some regions may be much better conserved than others. Such strong conservation may reveal a region that possesses an important function. When alignments are so long that it is infeasible, or at least undesirable, to inspect them in complete detail, it is helpful to have an automatic process that computes information about the varying degree of conservation along the alignment and displays the information in a graphical representation that is readily assimilated. This paper presents methods for computing several such robustness measures at each position of a given alignment. These methods are all very space-efficient; they use only space proportional to the sum of the two sequence lengths. To illustrate their effectiveness, one of the methods is used to locate particularly well-conserved regions in the ß-globin gene locus control region and in the 5' flank of the
-globin gene.
Received on April 25, 1992; accepted on January 5, 1993
This article has been cited by other articles:
![]() |
G. Lunter, A. Rocco, N. Mimouni, A. Heger, A. Caldeira, and J. Hein Uncertainty in homology inferences: Assessing and improving genomic sequence alignment Genome Res., February 1, 2008; 18(2): 298 - 309. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. J. Bordner and R. Abagyan REVCOM: a robust Bayesian method for evolutionary rate estimation Bioinformatics, May 15, 2005; 21(10): 2315 - 2321. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. B. Do, M. S.P. Mahabhashyam, M. Brudno, and S. Batzoglou ProbCons: Probabilistic consistency-based multiple sequence alignment Genome Res., February 1, 2005; 15(2): 330 - 340. [Abstract] [Full Text] [PDF] |
||||

