Words similar to pericentric
Example sentences for: pericentric
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A panel of bacterial artificial chromosome (BAC) and P1 artificial chromosome (PAC) clones spanning approximately 10 megabases (Mb) of human genome sequence was initially used to characterize the pericentric inversion of human 15q11-q13 in chimpanzee.
Probes were selected that flank known sites of genomic rearrangement based upon previous yeast artificial chromosome (YAC) and BAC/PAC mapping studies, together with the human sequence map available from the University of California at Santa Cruz (UCSC) Genome Browser [ 11 12 13 14 15 ] . Probes flanking the Prader-Willi/Angelman syndrome breakpoints, in addition to a characterized inv dup(15) rearrangement were selected to test the possibility that the pericentric inversion evolutionary breakpoint corresponded to a site of known human genomic instability (Figure 1).
3 and the fact the CHRNA7 duplication appeared polymorphic in the human population [ 17 ] . This hypothesis deserved consideration in this study, as the site of duplication of the CHRNA7 locus in the human genome may correspond to the pericentric inversion breakpoint, and the high sequence homology noted between the donor and duplicated CHRNA7 loci does not establish the human-specificity of the CHRNA7 duplication, as gene conversion may also maintain high sequence homology of duplicated segments [ 26 27 ] . Thus, we tested the chimpanzee genome by Southern genomic analysis for the presence of the CHRNA7 duplication which revealed this duplication is most likely human-specific and therefore did not contribute to the pericentric inversion in chimpanzee (Figure 5).
There are at least two types of cohesin sites: (1) cohesin associated with the centromere and the nearby pericentric domain, and (2) cohesin associated with chromosome arms [12,13,14,15].
Upon hybridization of this probe to a panel of human, pygmy chimpanzee, common chimpanzee and gorilla genomic DNAs, two bands were observed in the human sample and a single band was noted in all great ape species, providing further evidence that the CHRNA7 duplication was specific to humans and was not present at the time of the pericentric inversion event in the chimpanzee genome.
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