生长抑素在许多部位起作用，抑制许多激素和其他分泌蛋白的释放生长抑素的生物学效应可能是由以组织特异性方式表达的G蛋白偶联受体家族介导的SSTR2是具有七个跨膜段的受体超家族的成员，在大脑和肾脏中表达最高[由RefSeq提供，2008年7月]
Somatostatin acts at many sites to inhibit the release of many hormones and other secretory proteins. The biologic effects of somatostatin are probably mediated by a family of G protein-coupled receptors that are expressed in a tissue-specific manner. SSTR2 is a member of the superfamily of receptors having seven transmembrane segments and is expressed in highest levels in cerebrum and kidney. [provided by RefSeq, Jul 2008]