| pubmed-article:8098703 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C1522642 | lld:lifeskim |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C0074830 | lld:lifeskim |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C0332281 | lld:lifeskim |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C1335867 | lld:lifeskim |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C2003941 | lld:lifeskim |
| pubmed-article:8098703 | lifeskim:mentions | umls-concept:C0449560 | lld:lifeskim |
| pubmed-article:8098703 | pubmed:issue | 15 | lld:pubmed |
| pubmed-article:8098703 | pubmed:dateCreated | 1993-6-24 | lld:pubmed |
| pubmed-article:8098703 | pubmed:abstractText | The interaction of the SRIF receptor subtype SSTR2 with pertussis toxin-sensitive G proteins was investigated using an immunoprecipitation approach employing peptide-directed antisera against Gi alpha and G(o) alpha. Antisera directed against either the COOH terminus of Gi alpha or Go alpha uncoupled SSTR2-G protein complexes from CHO cells stably expressing the cloned receptor indicating that both G proteins form complexes with SSTR2. Chinese hamster ovary cells primarily express Gi alpha 3 and G(o) alpha 2 immunoreactivity, with much lower levels of the other pertussis toxin-sensitive G proteins. Antiserum against Gi alpha 3 uncoupled SSTR2/G protein complexes to a similar extent as Gi alpha common antiserum while antisera against Gi alpha 1 and Gi alpha 2 did not. These findings indicate that SSTR2 expressed in Chinese hamster ovary cells predominantly associates with Gi alpha 3 and G(o) alpha 2. In HEK 293 cells which endogenously express low densities of SSTR2 and similar levels of Gi alpha 1 and Gi alpha 3 immunoreactivity but no G(o) alpha, only antiserum directed against Gi alpha 3 immunoprecipitated SSTR2-G protein complexes, indicating that in these cells SSTR2 primarily associates with Gi alpha 3. SRIF can not inhibit forskolin-stimulated cAMP formation in wild-type HEK 293 cells nor in HEK 293 cells transfected with SSTR2. In contrast, SRIF can inhibit cAMP formation in HEK 293 cells expressing the cloned SRIF receptor SSTR3, which requires the presence of Gi alpha 1 to functionally couple to adenylyl cyclase. The lack of efficient association of SSTR2 with Gi alpha 1 may be the cause of its inability to mediate inhibition of cAMP formation. Differences in the G protein-coupling domains of the cloned SRIF receptors may be responsible for their differences in G protein association and ability to effect various signaling pathways. | lld:pubmed |
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| pubmed-article:8098703 | pubmed:language | eng | lld:pubmed |
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| pubmed-article:8098703 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:8098703 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:8098703 | pubmed:month | May | lld:pubmed |
| pubmed-article:8098703 | pubmed:issn | 0021-9258 | lld:pubmed |
| pubmed-article:8098703 | pubmed:author | pubmed-author:LauS HSH | lld:pubmed |
| pubmed-article:8098703 | pubmed:author | pubmed-author:COLEL JLJ | lld:pubmed |
| pubmed-article:8098703 | pubmed:author | pubmed-author:YasudaKK | lld:pubmed |
| pubmed-article:8098703 | pubmed:author | pubmed-author:ReisineTT | lld:pubmed |
| pubmed-article:8098703 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:8098703 | pubmed:day | 25 | lld:pubmed |
| pubmed-article:8098703 | pubmed:volume | 268 | lld:pubmed |
| pubmed-article:8098703 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:8098703 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:8098703 | pubmed:pagination | 10721-7 | lld:pubmed |
| pubmed-article:8098703 | pubmed:dateRevised | 2007-11-14 | lld:pubmed |
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| pubmed-article:8098703 | pubmed:year | 1993 | lld:pubmed |
| pubmed-article:8098703 | pubmed:articleTitle | Gi alpha 3 and G(o) alpha selectively associate with the cloned somatostatin receptor subtype SSTR2. | lld:pubmed |
| pubmed-article:8098703 | pubmed:affiliation | Department of Pharmacology and Graduate Group in Cell Biology, University of Pennsylvania, Philadelphia 19104. | lld:pubmed |
| pubmed-article:8098703 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:8098703 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:8098703 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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