Mutation analysis of a Uighur family with epidermolytic palmoplantar keratoderma / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 615-619, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-287365
ABSTRACT
<p><b>OBJECTIVE</b>To map and identify the disease gene for the epidermolytic palmoplantar keratoderma (EPPK) in a Uighur family of China.</p><p><b>METHODS</b>Blood samples were collected and genomic DNA was extracted from 48 members of the Xinjiang Uighur family. Six microsatellite repeat sequences on chromosome region 17q12-q21 and 12q13 were selected based on the two known candidate genes KRT9 and KRT1. Two-point linkage analysis and haplotype analysis were performed. Exons and their flanking intronic sequence of the KRT9 gene were amplified by polymerase chain reaction (PCR) and sequenced.</p><p><b>RESULTS</b>Data from the marker D17S1787 suggested linkage and yielded a Lod score of 8.65 at theta=0 by using MLINK software. Genotypes and haplotypes were acquired. The disease gene of the EPPK family is located between markers 17/TG/36620115 and D17S846. Chromosome 12q13 region was excluded with the negative Lod score obtained in marker D12S96 (Lod=-infinity at theta=0). No pathogenic mutation was detected in the KRT9 gene.</p><p><b>CONCLUSION</b>The disease gene of the EPPK family is located on chromosome region 17q21.2. The keratin 9 gene might not be the disease gene.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pedigree
/
Chromosomes, Human, Pair 17
/
China
/
Microsatellite Repeats
/
Ethnology
/
Keratoderma, Palmoplantar, Epidermolytic
/
Keratin-1
/
Keratin-9
/
Genetics
/
Mutation
Type of study:
Prognostic study
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
Chinese
Journal:
Chinese Journal of Medical Genetics
Year:
2009
Type:
Article
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