Pancreatic insufficiency and pulmonary disease in German and Slavic cystic fibrosis patients with the R347P mutation.

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 Mutat

journal_title

Human mutation

authors

Varon R,Stuhrmann M,Macek M Jr,Kufardjieva A,Angelicheva D,Magdorf K,Jordanova A,Savov A,Wahn U,Macek M

doi

10.1002/humu.1380060304

subject

Has Abstract,Author List Incomplete

pub_date

1995-01-01 00:00:00

pages

219-25

issue

3

eissn

1059-7794

issn

1098-1004

journal_volume

6

pub_type

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