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. 1987 Oct;84(20):7266–7269. doi: 10.1073/pnas.84.20.7266

Reduced expression of multiple forms of the alpha subunit of the stimulatory GTP-binding protein in pseudohypoparathyroidism type Ia.

A Carter 1, C Bardin 1, R Collins 1, C Simons 1, P Bray 1, A Spiegel 1
PMCID: PMC299273  PMID: 2890163

Abstract

We examined the expression of the alpha subunit of the stimulatory GTP-binding protein (Gs) in fibroblasts of subjects with pseudohypoparathyroidism (PHP) type Ia by transfer blot hybridization and S1 nuclease analyses. Six subjects with PHP type Ia showed decreased steady-state content of Gs alpha mRNA. S1 nuclease analysis indicates that both long and short forms of Gs alpha mRNA are decreased, with no apparent change in the ratio of long to short forms in PHP compared with normal individuals. It appears likely that in some cases of PHP type Ia the genetic lesion affects the maintenance of mRNA levels for all forms of the Gs alpha subunit.

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