Analysis of a novel AVPR2 mutation in a family with nephrogenic diabetes insipidus.

ABSTRACT: Congenital nephrogenic diabetes insipidus (NDI) is a rare X-linked recessive disorder associated with germ-line mutations of the arginine vasopressin (AVP) receptor type 2 (AVPR2) gene. Recent molecular studies have demonstrated that insensitivity of renal tubule cells to AVP is associated with AVPR2 mutations. We identified a novel deletion mutation at nucleotide position 302 (302delC), in a Korean NDI family, that results in a frameshift and a truncated receptor protein. To identify the mutant AVPR2 protein we developed an expression vector for the AVPR2 mutation by a PCR-based restriction fragment replacement strategy. COS-7 cells were transiently transfected with expression vectors for the wild-type and mutant genes, and we analyzed AVP-induced cyclic adenosine monophos-phate (cAMP) re

SUBMITTER: Moon SD 

PROVIDER: S-EPMC3048978 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature