Description_x000D_ General description_x000D_ MAP2 is the major microtubule associated protein of brain tissue. There are three forms of MAP2; two are similarily sized with apparent molecular weights of 280 kDa (MAP2a and MAP2b) and the third with a lower molecular weight of 70 kDa (MAP2c). In the newborn rat brain, MAP2b and MAP2c are present, while MAP2a is absent. Between postnatal days 10 and 20 MAP2a appears, at levels equal to that of MAP2b. At the same time, the level of MAP2c drops by 10-fold. This change happens during the period when dendrite growth is completed and when neurons have reached their mature morphology. MAP2 is degraded by a Cathepsin D like protease in the brain of aged rats. There is some indication that MAP2 is expressed at higher levels in some types of neurons than in others._x000D_ Monoclonal Anti-MAP2 (2a + 2b) (mouse IgG1 isotype) is derived from the hybridoma produced by the fusion of mouse myeloma cells and splenocytes from a mouse immunized with bovine microtubule associated protein 2 (MAP2)._x000D_ Monoclonal Anti-MAP2 specificity was established by an immunoblot. The antibody localizes the high molecular weight forms of MAP2, namely MAP2a and MAP2b, but shows no reactivity with MAP2c. No crossreactivity is observed with MAP1, MAP5, tubulin, or tau (t)._x000D_ Specificity_x000D_ Monoclonal Anti-MAP2 antibody reacts with human, bovine, rat, mouse, Xenopus, salamander, and quail tissue or cells by immunocytochemical techniques utilizing either a fluorescent or peroxidase label, or by immunohistochemistry._x000D_ Immunogen_x000D_ bovine MAP2_x000D_ Application_x000D_ Monoclonal Anti-MAP2 (2a+2b) antibody produced in mouse has been used in immunocytochemistry._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Microtubule associated protein 2 (MAP2) is known to promote microtubule assembly and to form side arms on microtubules. It also interacts with neurofilaments, actin and other elements of the cytoskeleton. MAP2 is degraded by a cathepsin D like protease in the brain of aged rats. There is some indication that MAP2 is expressed at higher levels in some types of neurons than in others. MAP2 is known to promote microtubule assembly and to form side-arms on microtubules. It also interacts with neurofilaments, actin and other elements of the cytoskeleton.