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ADENOSINE RECEPTORS

receptor          Adenosine A2B receptor         Adenosine A3 receptor
                  A2b, Rs; AA2BR                 AA3A

E-NECA, CV-       None                           Cl-IB-MECA
 ATL146e          MRS1754j, enprofylline
                                                 MRS 1220, MRE 3008-F20,
 H 58261f,g                                      MRS 1191; MRS 1523
      selective:

 17387, CSC

0; [3H]-SCH       ([3H]-ZM-241385;        [3H]- [3H]- MRE 3008-F20
-241385           DPCPX)

                  [3H]-MRS1754

cial and non- Some commercial and non- Some commercial and non-
        peptide commercial peptide antibodies commercial peptide antibodies

 P29274, rat      Human 328 aa, P29275, rat      Human 318 aa, P33765, rat 320
, mouse 409       332 aa, P29276 mouse 332 aa,   aa P28647(Alternative splicing in
                  UO5673                         rat can yield product with 337 aa)
                                                 Mouse 320 aa, AF069778

                  Gs, Gq                         Gi

                  Intermediate levels:           Intermediate levels: Cerebellum
                                                 (human?),     hippocampus
  GABAergic       Blood vessels, eye, median     (human?)
date-putamen,     eminence, mast cells
                  (human?)                       Low levels: Most of brain (rat,
   accumbens,     Low levels: Adrenal gland,     mouse).
 olfactorium),    pituitary gland

of brain

                  chr 17p11.2-12;                chr 1p21-13,

  sensorimotor    Relaxation of smooth muscle    Enhancement of mediator release
basal ganglia;                                   from mast cells (some species).
f platelet        in vasculature and intestine;  Preconditioning (some species).

             and  inhibition of monocyte and                              145

                  macrophage        function,
   127   128   129   130   131   132   133   134   135   136   137