Nature and recurrence of AVPR2 mutations in X-linked nephrogenic diabetes insipidus

Item Type:	Article
Title:	Nature and recurrence of AVPR2 mutations in X-linked nephrogenic diabetes insipidus
Creators Name:	Bichet, D.G. and Birnbaumer, M. and Lonergan, M. and Arthus, M.F. and Rosenthal, W. and Goodyer, P. and Nivet, H. and Benoit, S. and Giampietro, P. and Simonetti, S. and Fish, A. and Whitley, C.B. and Jaeger, P. and Gertner, J. and New, M. and DiBona, F.J. and Kaplan, B.S. and Robertson, G.L. and Hendy, G.N. and Fujiwara, T.M. and Morgan, K.
Abstract:	X-linked nephrogenic diabetes insipidus (NDI) is a rare disease with defective renal and extrarenal arginine-vaso-pressin V2 receptor responses due to mutations in the AVPR2 gene in Xq28. We analyzed 31 independent NDI families to determine the nature and recurrence of AVPR2 mutations. Twenty-one new putative disease-causing mutations were identified: 113delCT, 253del35, 255de19, 274insG, V88M, R106C, 402delCT, C112R, Y124X, S126F, W164S, S167L, 684delTA, 804insG, W284X, A285P, W293X, R337X, and three large deletions or gene rearrangements. Five other mutations--R113W, Y128S, R137H, R181C, and R202C--that previously had been reported in other families were detected. There was evidence for recurrent mutation for four mutations (R113W, R137H, S167L, and R337X). Eight de novo mutation events were detected (274insG, R106C, Y128S, 167L [twice], R202C, 684delTA, and R337X). The origins were maternal (one), grandmaternal (one), and grandpaternal (six). In the 31 NDI families and 6 families previously reported by us, there is evidence both for mutation hot spots for nucleotide substitutions and for small deletions and insertions. More than half (58%) of the nucleotide substitutions in 26 families could be a consequence of 5-methyl-cytosine deamination at a CpG dinucleotide. Most of the small deletions and insertions could be attributed to slipped mispairing during DNA replication.
Keywords:	Amino Acid Sequence, Base Sequence, DNA Mutational Analysis, Deamination, Diabetes Insipidus, Dinucleoside Phosphates, Frameshift Mutation, Haplotypes, Kidney Diseases, Linkage (Genetics), Molecular Sequence Data, Mutagenesis, Mutation, Point Mutation, Receptors, Vasopressin, Sequence Deletion, X Chromosome
Source:	American Journal of Human Genetics
ISSN:	0002-9297
Publisher:	University of Chicago Press
Volume:	55
Number:	2
Page Range:	278-286
Date:	August 1994
Official Publication:	http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1918376&blobtype=pdf
PubMed:	View item in PubMed

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