Abstract:
:Mutations in MCOLN1 have been found to cause mucolipidosis type IV (MLIV; MIM 252650), a rare autosomal recessive lysosomal storage disorder found primarily in the Ashkenazi Jewish population. As a part of the successful cloning of MCOLN1, we constructed a 1.4-Mb physical map containing 14 BACs and 4 cosmids that encompasses the region surrounding MCOLN1 on human chromosome 19p13.3-p13.2-a region to which linkage or association has been reported for multiple diseases. Here we detail the precise physical mapping of 28 expressed sequence tags that represent unique UniGene clusters, of which 15 are known genes. We present a detailed transcript map of the MCOLN1 gene region that includes the genes KIAA0521, neuropathy target esterase (NTE), a novel zinc finger gene, and two novel transcripts in addition to MCOLN1. We also report the identification of eight new polymorphic markers between D19S406 and D19S912, which allowed us to pinpoint the location of MCOLN1 by haplotype analysis and which will facilitate future fine-mapping in this region. Additionally, we briefly describe the correlation between the observed haplotypes and the mutations found in MCOLN1. The complete 14-marker haplotypes of non-Jewish disease chromosomes, which are crucial for the genetic diagnosis of MLIV in the non-Jewish population, are presented here for the first time.
journal_name
Genomicsjournal_title
Genomicsauthors
Acierno JS Jr,Kennedy JC,Falardeau JL,Leyne M,Bromley MC,Colman MW,Sun M,Bove C,Ashworth LK,Chadwick LH,Schiripo T,Ma S,Goldin E,Schiffmann R,Slaugenhaupt SAdoi
10.1006/geno.2001.6526subject
Has Abstractpub_date
2001-04-15 00:00:00pages
203-10issue
2eissn
0888-7543issn
1089-8646pii
S0888-7543(01)96526-7journal_volume
73pub_type
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