title: Evidence of chromosome 9 origin of the euchromatic variant band within 9qh.
abstract: Fluorescence in-situ hybridization studies using a whole chromosome 9 painting probe were performed on three individuals from two different families, who carry a chromosome 9 variant with an extra band within the elongated 9qh region. The results confirm the euchromatic nature of the extra band, and provide evidence that it is of chromosome 9 origin. This variant band, which may not be very rare, thus possibly results from a duplication of a segment of 9qh plus band p12 or part of band q21.
authors.affiliation: Department of Pediatrics, Rush Medical College, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612.
authors.forename: J J
authors.initials: JJ
authors.lastname: Hoo
authors.forename: K
authors.initials: K
authors.lastname: Szego
authors.forename: P
authors.initials: P
authors.lastname: Wong
authors.forename: B
authors.initials: B
authors.lastname: Roland
mesh_terms: D002843:Chromatin; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D002899:Chromosomes, Human, Pair 9; D005260:Female; D006579:Heterozygote; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D008297:Male
chemical_list: D002843:Chromatin