A single-molecule microscopy experiment is performed on a slide containing 1000 molecules each of green, red, cyan, and yellow f
luorescent proteins (gfp, rfp, cfp, and yfp, respectively). the experiment measures the number of antibodies bound to each type of protein, finding that 900 molecules of gfp, 10 of rfp, 1 of cfp, and 3 of yfp are bound at 1 nm concentration of antibody. a. what is the specificity of the antibody for gfp?
b. what is the kd of the gfp–antibody interaction?