Article
Clinical and biochemical characteristics of acromegalic patients harboring gsp-positive and gsp-negative pituitary tumors.
Neurosurgery - 1 Aug 1993
Adams E F, Brockmeier S, Friedmann E, Roth M, Buchfelder M, Fahlbusch R
Abstract excerpt
A subgroup of growth hormone (GH)-secreting pituitary tumors carries somatic mutations within the gene coding for the alpha subunit of the stimulatory heterotrimeric guanosine 5'-triphosphate-binding protein, Gs alpha. These so-called gsp mutations result in constitutively activated Gs alpha and the signal transduction cascade downstream of it, with eventual markedly and continuously elevated cyclic adenosine...
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