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. 2009 Jun 17;284(34):22641–22648. doi: 10.1074/jbc.M109.022400

FIGURE 6.

FIGURE 6.

Effect of MRAP on MC5 receptor homodimerization measured by co-immunoprecipitation. A and B, cells expressing HA-MC5 receptor and V5-MC5 receptor without (A) or with (B) MRAP were lysed, and MC5 receptor was immunoprecipitated with anti-HA or anti-V5 antibody. Proteins were resolved by SDS-PAGE, and HA-MC5 receptor was detected with anti-HA antibody. *, IgG heavy chain. C, quantitative analysis of HA-MC5 receptor and V5-MC5 receptor co-immunoprecipitation in the presence or absence of MRAP was performed as described under “Experimental Procedures.” It is expected that only a fraction of MC5 receptor dimers will have HA/V5 tags and be visualized, whereas others will have HA/HA or V5/V5 tags. The mean ± S.E. values from three separate experiments are shown. *, p < 0.01 compared with control.