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1answer
34 views

Homology ratio comparison between different species

I found the following homology ratio: protein coding genes of the organism with an homolog in mouse / all protein coding genes in the organism I have done this for all protein coding genes between ...
4
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4answers
289 views

Is there a PSI-BLAST for nucleotide sequences?

I understand that one can translate a nucleotide sequence and run PSI-BLAST on the protein (proteins if you take the 6 reading frames), but I'm looking for distant homology for bacterial small RNAs ...
14
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1answer
201 views

Paralogous genes in genome-wide association studies?

Has anybody tested if paralogous genes are over-represented among the genes identified by genome-wide association studies (GWAS)? For example, if a GWAS study finds 200 genes associated to the ...
3
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1answer
154 views

What do the Clustal Alignment Symbols Mean?

Occasionally I will run protein alignments on peptide families and I can never remember what the symbols mean to show degrees of identity. What do they mean?
1
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0answers
15 views

Are there any good reviews on the mouse and human conservation in coding and gene regulatory module regions?

I was looking for reviews that deal with conservation between mouse and human of proteins, noncoding RNAs, gene regulatory module (such as promoters and enhancers), gene regulatory networks post the ...
2
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2answers
110 views

What are the statistical tools for distinguishing molecular analogy from homology?

Scientists have developed statistical tools that distinguish "distant" homologies from coincidental molecular homoplasy in extremely divergent sequences. What are these tools?How are they used ? I ...
5
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1answer
175 views

Homologies to insect wings

All winged vertebrates have wings which are homologous to each other and to the forelimbs of the non-winged vertebrates. But what about insect wings? Are all insect wings homologous, and are there any ...