Analysis of recurrent germline mutations in the MEN1 gene encountered in apparently unrelated families

Sunita K. Agarwal, Larisa V. Debelenko, Mary Beth Kester, Siradanahalli C. Guru, Pachiappan Manickam, Shodimu Emmanuel Olufemi, Monica C. Skarulis, Christina Hcppner, Judy S. Crabtree, Irina A. Lubensky, Zhengping Zhuang, Young S. Kim, Settara C. Chandrasekharappa, Francis S. Collins, Lance A. Liotta, Allen M. Spiegel, A. Lee Burns, Michael R. Emmert-Buck, Stephen J. Marx

Research output: Contribution to journalArticle

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Abstract

Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder that manifests as varying combinations of tumors of endocrine and other tissues (parathyroids, pancreatic islets, duodenal endocrine cells, the anterior pituitary and others). The MEN1 gene is on chromosome 11q13; it was recently identified by positional cloning. We previously reported 32 different germline mutations in 47 of the 50 familial MEN1 probands studied at the NIH. Eight different germline MEN1 mutations were encountered repeatedly in two or more apparently unrelated families. We analyzed the haplotypes of families with recurrent MEN1 mutations with seven polymorphic markers in the 11q13 region surrounding the MEN1 gene (from D11S1883 to D11S4908). Disease haplotypes were inferred from germline DNA and also from tumors with 11q13 loss of heterozygosity. Two different disease haplotype cores were shared by apparently unrelated families for two mutations in exon 2 (five families with 416delC and six families with 512delC). These two repeat mutations were associated with the two founder effects that we reported in a prior haplotype analysis. The disease haplotypes for each of the other six repeat mutations (seen twice each) were discordant, suggesting independent origins of these recurrent mutations. Most of the MEN1 germline mutations including all of those recurring independently occur in regions of CpG/CpNpG, short DNA repeats or single nucleotide repeat motifs. In conclusion, recurring germline mutations account for about half of the mutations in North American MEN1 families. They result from either founder effects or independent occurrence of one mutation more than one time.

Original languageEnglish (US)
Pages (from-to)75-82
Number of pages8
JournalHuman Mutation
Volume12
Issue number2
DOIs
StatePublished - 1998
Externally publishedYes

Fingerprint

Multiple Endocrine Neoplasia Type 1
Germ-Line Mutation
Mutation
Haplotypes
Genes
Founder Effect
Nucleotide Motifs
Endocrine Cells
Loss of Heterozygosity
DNA
Islets of Langerhans
Organism Cloning
Exons
Neoplasms
Chromosomes

Keywords

  • CpG
  • Founder
  • Haplotype
  • Hot-spot
  • Repeats

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Agarwal, S. K., Debelenko, L. V., Kester, M. B., Guru, S. C., Manickam, P., Olufemi, S. E., ... Marx, S. J. (1998). Analysis of recurrent germline mutations in the MEN1 gene encountered in apparently unrelated families. Human Mutation, 12(2), 75-82. https://doi.org/10.1002/(SICI)1098-1004(1998)12:2<75::AID-HUMU1>3.0.CO;2-T

Analysis of recurrent germline mutations in the MEN1 gene encountered in apparently unrelated families. / Agarwal, Sunita K.; Debelenko, Larisa V.; Kester, Mary Beth; Guru, Siradanahalli C.; Manickam, Pachiappan; Olufemi, Shodimu Emmanuel; Skarulis, Monica C.; Hcppner, Christina; Crabtree, Judy S.; Lubensky, Irina A.; Zhuang, Zhengping; Kim, Young S.; Chandrasekharappa, Settara C.; Collins, Francis S.; Liotta, Lance A.; Spiegel, Allen M.; Burns, A. Lee; Emmert-Buck, Michael R.; Marx, Stephen J.

In: Human Mutation, Vol. 12, No. 2, 1998, p. 75-82.

Research output: Contribution to journalArticle

Agarwal, SK, Debelenko, LV, Kester, MB, Guru, SC, Manickam, P, Olufemi, SE, Skarulis, MC, Hcppner, C, Crabtree, JS, Lubensky, IA, Zhuang, Z, Kim, YS, Chandrasekharappa, SC, Collins, FS, Liotta, LA, Spiegel, AM, Burns, AL, Emmert-Buck, MR & Marx, SJ 1998, 'Analysis of recurrent germline mutations in the MEN1 gene encountered in apparently unrelated families', Human Mutation, vol. 12, no. 2, pp. 75-82. https://doi.org/10.1002/(SICI)1098-1004(1998)12:2<75::AID-HUMU1>3.0.CO;2-T
Agarwal, Sunita K. ; Debelenko, Larisa V. ; Kester, Mary Beth ; Guru, Siradanahalli C. ; Manickam, Pachiappan ; Olufemi, Shodimu Emmanuel ; Skarulis, Monica C. ; Hcppner, Christina ; Crabtree, Judy S. ; Lubensky, Irina A. ; Zhuang, Zhengping ; Kim, Young S. ; Chandrasekharappa, Settara C. ; Collins, Francis S. ; Liotta, Lance A. ; Spiegel, Allen M. ; Burns, A. Lee ; Emmert-Buck, Michael R. ; Marx, Stephen J. / Analysis of recurrent germline mutations in the MEN1 gene encountered in apparently unrelated families. In: Human Mutation. 1998 ; Vol. 12, No. 2. pp. 75-82.
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AU - Olufemi, Shodimu Emmanuel

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AU - Marx, Stephen J.

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