G proteins are so-called because they bind the guanine nucleotides GDP and GTP. They are heterotrimers (i.e., made of three different subunits) associated with. the inner surface of the plasma membrane and. transmembrane receptors of hormones, etc. These are called G protein-coupled receptors (GPCRs).
Apply the metal paint to the mailbox in slow and even sections. Be sure to cover every inch of the metal mailbox including the door, hanging lip and the back. When this layer is dry remove the tape from the mailbox flag.
Confidence votes 111. The two quickest methods to remove paint from metal are, the use of heat, and chemical strippers. A propane torch or heat gun will soften the paint so that it can easily be scraped off. This may generate toxic fumes, though, and should be done outside or with a respirator.f you  have a lot of paint to remove from a metal frame consider Peel Away  7 or Smart Strip Paint Remover which a â¦ re the best to remove paint  from metal especially if there are multiple layers of old paint.