Affected-sib-pair mapping of a novel susceptibility gene to insulin- dependent diabetes mellitus (IDDM8) on chromosome 6q25-q27

D. F. Luo, M. M. Bui, A. Muir, N. K. Maclaren, G. Thomson, Jin-Xiong She

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Abstract

Affected-sib-pair analyses were performed using 104 Caucasian families to map genes that predispose to insulin-dependent diabetes mellitus (IDDM). We have obtained linkage evidence for D6S446 (maximum lod score [MLS] = 2.8) and for D6S264 (MLS = 2.0) on 6q25-q27. Together with a previously reported data set, linkage can be firmly established (MLS = 3.4 for D6S264), and the disease locus has been designated IDDM8. With analysis of independent families, we confirmed linkage evidence for the previously identified IDDM3 (15q) and DDM7 (2q). We also typed additional markers in the regions containing IDDM3, IDDM4, IDDM5, and IDDM8. Preliminary linkage evidence for a novel region on chromosome 4q (D4S1566) has been found in 47 Florida families (P < .03). We also found evidence of linkage for two regions previously identified as potential linkages in the Florida subset: D3S1303 on 3q (P < .04) and D7S486 on 7q (P < .03). We could not confirm linkage with eight other regions (D1S191, D1S412, D4S1604, D8S264, D8S556, D10S193, D13S158, and D18S64) previously identified as potential linkages.

Original languageEnglish (US)
Pages (from-to)911-919
Number of pages9
JournalAmerican Journal of Human Genetics
Volume57
Issue number4
StatePublished - Jan 1 1995
Externally publishedYes

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Lod Score
Type 1 Diabetes Mellitus
Chromosomes
Genes
Information Storage and Retrieval
Insulin-Dependent Diabetes Mellitus 8
Insulin-Dependent Diabetes Mellitus 3

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Affected-sib-pair mapping of a novel susceptibility gene to insulin- dependent diabetes mellitus (IDDM8) on chromosome 6q25-q27. / Luo, D. F.; Bui, M. M.; Muir, A.; Maclaren, N. K.; Thomson, G.; She, Jin-Xiong.

In: American Journal of Human Genetics, Vol. 57, No. 4, 01.01.1995, p. 911-919.

Research output: Contribution to journalArticle

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AU - Thomson, G.

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