Abstract
Using vector-CENP-B box polymerase chain reaction (PCR) we isolated and cloned from a human chromosome 21-specific plasmid library, a 1 kb DNA sequence, named p alpha H21. In in situ hybridization experiments, p alpha H21 hybridized, under high stringency conditions, to the centromeric region of all the human, chimpanzee, gorilla and orangutan chromosomes. On human chromosomes p alpha H21 also identified non-centromeric sequences at 2q21 (locus D2F33S1) and 9q13 (locus D9F33S2). The possible derivation of these sequences from ancestral centromeres is discussed. Sequence analysis confirmed the alphoid nature of the whole p alpha H21 insert.
MeSH Terms
Animals
Base Sequence
Blotting, Southern
Centromere
Chromosomes, Human, Pair 2
Chromosomes, Human, Pair 9
Conserved Sequence
DNA, Satellite/analysis
Female
Gene Library
Gorilla gorilla/genetics
Hominidae/genetics
Humans
In Situ Hybridization, Fluorescence
Male
Molecular Sequence Data
Pan troglodytes/genetics
Polymerase Chain Reaction
Pongo pygmaeus/genetics
Repetitive Sequences, Nucleic Acid
Sequence Analysis, DNA
Authors & Affiliations
7 authors, click to expand affiliations / ORCID
Baldini A
Department of Human Genetics, Yale University School of Medicine, New Haven, CT 06510.
Ried T
Shridhar V
Ogura K
D'Aiuto L
Rocchi M
Ward D C
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