P1 PURINOCEPTORS
\pˈiː wˈɒn pjˈʊɹɪnˌə͡ʊsptəz], \pˈiː wˈɒn pjˈʊɹɪnˌəʊsptəz], \p_ˈiː w_ˈɒ_n p_j_ˈʊ_ɹ_ɪ_n_ˌəʊ_s_p_t_ə_z]\
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A class of cell surface receptors that prefers adenosine to other endogenous purines. Purinergic P1 receptors are widespread in the body including the cardiovascular, respiratory, immune, and nervous systems. There are at least two pharmacologically distinguishable types (A1 and A2, or Ri and Ra). The methylxanthines, e.g., caffeine, bind to these receptors, but also have other unrelated effects.
By DataStellar Co., Ltd
