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Copyright ©2014 Baishideng Publishing Group Co.
World J Gastroenterol. Mar 7, 2014; 20(9): 2321-2334
Published online Mar 7, 2014. doi: 10.3748/wjg.v20.i9.2321
Figure 1
Figure 1 Substance P and neurokinin-1 receptor antagonists bind to different sites of the neurokinin-1 receptor. Substance P (SP) binds to the extracellular loops of the receptor, whereas neurokinin-1 (NK-1) antagonists (e.g., L-733.060, aprepitant, L-732.138) bind more deeply, between the transmembrane segments.