Details

Autor(en) / Beteiligte

• Höglund, Pia
• Haila, Siru
• Gustavson, Karl-Henrik
• Taipale, Mikko
• Hannula, Katariina
• Popinska, Kataryna
• Holmberg, Christer
• Socha, Jerzy
• de la Chapelle, Albert
• Kere, Juha

Titel

Clustering of private mutations in the congenital chloride diarrhea/down-regulated in adenoma gene

Ist Teil von

• Human mutation, 1998, Vol.11 (4), p.321-327

Ort / Verlag

New York: Wiley Subscription Services, Inc., A Wiley Company

Erscheinungsjahr

1998

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• An inherited defect in intestinal anion exchange, congenital chloride diarrhea (CLD), was recently shown to be caused by mutations in the down‐regulated in adenoma (DRA) gene. A three base pair deletion resulting in the loss of an amino acid valine (V317del) in the predicted CLD/DRA protein was shown to be responsible for all CLD cases in a Finnish founder population. Two additional mutations, H124L and 344delT, were found in Polish CLD patients. Here, we screened for additional mutations in a set of 14 CLD families of Polish, Swedish, North American, and Finnish origin using primers that allowed mutation searches directly from genomic DNA samples. We found eight novel mutations in the CLD/DRA gene. The mutations included two transversions, one transition, one insertion, and four small deletions. Of 11 sequence alterations detected so far, nine lie clustered in three short segments that are 49 bp, 39 bp, and 65 bp in size, respectively. These short segments span only 6.7 % of the total cDNA length, suggesting functional importance or mutation‐prone DNA regions of the corresponding CLD/DRA protein domains. Hum Mutat 11:321–327, 1998. © 1998 Wiley‐Liss, Inc.