G. Vandersteege et al., A SUBLOCUS OF THE MULTICOPY MICROSATELLITE MARKER CMS1 MAPS PROXIMAL TO SPINAL MUSCULAR-ATROPHY (SMA) AS SHOWN BY RECOMBINANT ANALYSIS, Human genetics, 96(5), 1995, pp. 589-591
The critical region containing the spinal muscular atrophy (SMA) gene
is flanked by the 5q11-q13 markers, D5S435 and D5S557, as determined b
y linkage analysis. Here we present the results of an analysis of a Du
tch SMA family with the multicopy microsatellite marker CMS1. A crosso
ver is revealed in the critical SMA region. We conclude that at least
one of the CMS1 subloci maps proximal to the SMA gene. This reduces th
e minimal SMA region from approximately 1.4 Mb to 600-700 kb.