High-resolution physical map for chromosome 16q12.1-q13, the Blau syndrome locus.
BACKGROUND
The Blau syndrome (MIM 186580), an autosomal dominant granulomatous disease, was previously mapped to chromosome 16p12-q21. However, inconsistent physical maps of the region and consequently an unknown order of microsatellite markers, hampered us from further refining the genetic locus for the Blau syndrome. To address this problem, we constructed our own high-resolution physical map for the Blau susceptibility region.


RESULTS
We generated a high-resolution physical map that provides more than 90% coverage of a refined Blau susceptibility region. The map consists of four contigs of sequence tagged site-based bacterial artificial chromosomes with a total of 124 bacterial artificial chromosomes, and spans approximately 7.5 Mbp; however, three gaps still exist in this map with sizes of 425, 530 and 375 kbp, respectively, estimated from radiation hybrid mapping.


CONCLUSIONS
Our high-resolution map will assist genetic studies of loci in the interval from D16S3080, near D16S409, and D16S408 (16q12.1 to 16q13).
Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA. xjwang@genetics.wayne.edu
Xiaoju
X
Wang
Helena
H
Kuivaniemi
Gina
G
Bonavita
Charlene J
CJ
Williams
Gerard
G
Tromp