The sequence organization of the long arm pseudoautosomal region of the human sex chromosomes.
We have analysed the sequence organization of the pseudoautosomal region at the telomeres of the long arms of the human sex chromosomes and shown that it is 320 kb long. A LINE sequence is present on both the X and Y chromosomes immediately adjacent to the breakpoint in homology suggesting that the homology arose as a result of an ectopic recombination event mediated by LINE sequences originally present in non-homologous stretches of X and Y chromosomal DNA. This led to the translocation of sequences from the X chromosome telomere onto the Y chromosome and created a new pseudoautosomal region.
Kvaløy
K
K
Department of Biochemistry, University of Oxford, UK.
Galvagni
F
F
Brown
W R
WR
D001483:Base Sequence; D002874:Chromosome Mapping; D005260:Female; D005785:Gene Conversion; D006801:Humans; D008297:Male; D008957:Models, Genetic; D008969:Molecular Sequence Data; D011995:Recombination, Genetic; D012091:Repetitive Sequences, Nucleic Acid; D016415:Sequence Alignment; D012689:Sequence Homology, Nucleic Acid; D014178:Translocation, Genetic; D014960:X Chromosome; D014998:Y Chromosome