Four new nucleotide sequence polymorphisms in the LDL receptor gene detected by SSCP analysis |
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Authors: | Kimiko Yamakawa-Kobayashi Tsutomu Kobayashi Takashi Obara Hideo Hamaguchi |
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Institution: | (1) Department of Medical Genetics, Institute of Basic Medical Sciences, University of Tsukuba, 305 Tsukuba, Japan;(2) Tsukuba Research Laboratories, Eisai Co., Ltd., 305 Tsukuba, Japan |
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Abstract: | Seven nucleotide sequence polymorphisms were detected within exons of the low-density lipoprotein (LDL) receptor gene using single-strand conformation polymorphism (SSCP) analysis followed by direct sequence analysis on amplified DNA. Four nucleotide changes at nucleotide positions 1617, 1725, 2232, and 2635 were new nucleotide sequence polymorphisms not previously described. The remaining three nucleotide changes were identical with restriction fragment length polymorphisms and a previously reported nucleotide sequence polymorphism. These nucleotide sequence polymorphisms, detectable by SSCP analysis, are useful genetic markers for linkage analysis of the LDL receptor gene and familial hypercholesterolemia. |
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