Inventors:
Andrew D. Hollenbach - New Orleans LA, US
Patrick J. Miller - New Orleans LA, US
Kevin N. Dietz - New Orleans LA, US
Assignee:
Board of Supervisors of Louisiana State University And Agricultural and Mechanical College - Baton Rouge LA
International Classification:
C07K 5/00, G01N 33/53
US Classification:
530352, 436517, 436547, 436 35, 435 71, 530324
Abstract:
Pax3, a member of the paired class homeodomain family of transcription factors and an essential protein for early skeletal muscle development, was shown to be phosphorylated in proliferating mouse primary myoblasts. Furthermore, Ser205, Ser201 and Ser209 were identified as the only sites of phosphorylation on Pax3 in proliferating mouse primary myoblasts. Phosphorylation of Ser205 was shown to be required for the efficient phosphorylation of Ser201 and/or Ser209. Site-specific antibodies were made to each of these three sites when phosphorylated. These three sites are also present and phosphorylated in the Pax3-FOXO1 fusion protein, and phosphorylation of these sites may play a role in ARMS. Thus, these new antibodies may be used in studying the regulation of nerve and muscle development and differentiation and in finding therapeutic solutions for certain disorders, including Waardenburg syndrome and childhood solid muscle tumor alveolar rhabdomyosarcoma (ARMS).