A third set of potentially functional intracellular dimer sites on MBP Isoform 1 is displayed incorporating the epitopes KDSHH, DSHHP, and SHHPA individually coupled to HGRTQ. The dimer epitopes’ complexing with specific IgE antibodies likely hinges upon disruption of the overhanging myelin surface and specific antibody inflow. For serum antibody immunoassay purposes, the longer, inclusive peptide KDSHHPA can be used together with HGRTQ as both solubilize readily with the amino-ADOOA-ADOOA linker.