Abstract:
:Cystic fibrosis (CF) is caused by mutations in the gene for the cystic fibrosis transmembrane conductance regulator (CFTR) that codes for a cAMP-regulated chloride channel. The R347P is a missense mutation located within the first membrane spanning domain (MSD1) of the CFTR protein. This mutation occurs with an overall worldwide frequency of about 0.2%. The patients, originally described with this mutation were compound heterozygotes with the delta F508 mutation and had a very mild course of CF, suggesting that R347P, similar to other missense mutations affecting the MSD1 domain, causes a mild phenotype. We report here a group of 19 CF patients with the R347P mutation of German, Bulgarian, Czech, and Slovak origin, including two homozygotes. Most patients presented with early disease onset, pancreas insufficiency (PI), and early pulmonary involvement, suggesting that this mutation can lead to a severe course of CF. Most R347P alleles in the group studied share a common polymorphic haplotype. In addition, these analyses gave evidence for recurrence of the mutation in two CF patients of German and Czech origin.
journal_name
Hum Mutatjournal_title
Human mutationauthors
Varon R,Stuhrmann M,Macek M Jr,Kufardjieva A,Angelicheva D,Magdorf K,Jordanova A,Savov A,Wahn U,Macek Mdoi
10.1002/humu.1380060304subject
Has Abstract,Author List Incompletepub_date
1995-01-01 00:00:00pages
219-25issue
3eissn
1059-7794issn
1098-1004journal_volume
6pub_type
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