Cloning and expression of a novel mouse somatostatin receptor (SSTR2B)
1992
A mouse somatostatin (SS) receptor cDNA was cloned from neuroblastoma x glioma (NG108-15) cells. The sequence is almost identical to that of the mouse SSTR2 receptor [(1992) Proc. Natl. Acad. Sci. USA 89, 251)] but lacks about 300 nucleotides between transmembrane domain VII and the C-terminus. This spliced variant of SSTR2 (designated SSTR2B) encodes a protein which is 23 residues shorter than that predicted from the SSTR2 sequence, and differs in 15 amino acids at the C-terminus. mRNA corresponding to SSTR2B occurs in mouse tissues in higher abundance than that of SSTR2. SSTR2B binds SS peptides with high affinity when expressed in mammalian cells.
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