Microtubule-associated proteins (MAPs) play a crucial role in the development and structure of nerve cells. These proteins are important for the assembly and stability of microtubles during neurite outgrowth and for the morphology of neuronal processes, such as dendrites. MAP1B encodes for a single precursor protein that is cleaved to produce a single heavy chain of 280 kDa and a light chain of 32 kDa which become noncovalently associated. Expression levels of MAP1B are reportedly highest in the brain and are modulated during development as reported with gene silencing experiments that implicate MAP1B's role during neuronal differentiation. In addition, MAP1B can be selectively phosphorylated depending on the cell type, subcellular localization and developmental phase. In neurons, MAP1B is expressed as a glycoprotein at the plasma membrane, where it can interact with proteins participating in axonal guiding. MAP1B has been reported to be observable to migrate in a range between 320-340 kDa.
This antibody is routinely tested by western blot analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.