This site is the logical place for the initiation of integration, as it has a unique, defined sequence, in contrast to the repetitive and more variable sequence found at the second integration site on the minus strand.
In summary our results on human miRNAs were consistent with those obtained for flies by Seitz et al. [ 18], and support their notion that the precise 5' ends of both miRNA and miRNA* sequences are due to a narrowing selection on a more variable sequence population produced by Drosha and Dicer.
(1) The bombinin-like peptides (BLPs) consisted of 24 27 amino acid residues with highly conserved amidated C-terminal sequences but with more variable sequences outside this region when compared to the prototype peptide, bombinin.
IREs are characterized by a highly conserved apical sequence (CAGUGY; clearly demonstrated in the three hymenopteran species) with a more variable stem sequence [ 3].
The WD40 domain, sufficient for centriolar targeting [6], [7], is exceptionally highly conserved across species, whereas the coiled-coil domain is more variable in sequence.
The most common are Tn916-type elements, which almost invariably carry the tetracycline resistance determinant tetM, often accompanied by other drug resistance genes, and Tn5252-type elements, which are larger and more variable in sequence.
In line with our prediction, analysis of songs sung by 75 day (75d) birds revealed that syllable structure was more variable and sequence stereotypy was reduced following two hours of continuous practice compared to these features following two hours of non-singing.
In nematodes, mt DNA is usually more variable in sequence within a species than the ITS-2 and other rDNA regions [ 14], indicating that mt gene regions are well suited for studying the population genetics of parasitic nematodes [ 14, 17, 41].
We previously reported that HCV sequences from day 28 marked responders are more variable than sequences from poor responders [9].
Evidence of such transfers remains to be established, however, notably through the analysis of more variable molecular sequences of the symbionts.
This splitting feature in the noise from the spontaneous retractions as a function of speed level is observed in both the isolated Jab and the Jab embedded in the full sequence, albeit more variable in the sequence case.
