Anti HMGN, phospho Ser20/Ser24  

Rockland's affinity purified anti-HMGN pS20/pS24 antibody was used at 20 ug/ml to detect signal in a variety of tissues including multi-human, multi-brain and multi-cancer slides. This image shows moderate nuclear and faint cytoplasmic positive staining of epidermal keratinocytes at 40X. Tissue was formalin-fixed and paraffin embedded. The image shows localization of the antibody as the precipitated red signal, with a hematoxylin purple nuclear counterstain. Personal Communication, Tina Roush, LifeSpanBiosciences, Seattle, WA.

Western blot using Rockland's Affinity Purified anti-HMNG antibody shows detection of phosphorylated HMGN1 and HMGN2. Recombinant native and mutant HMGN proteins were treated with kinase PKCalpha to specifically phosphorylate S20 and S24 residues. Lanes contain: 1 - HMGN1, non-phosphorylated, 2 - HMGN1, phosphorylated, 3 - HMGN1 delta20E, delta24E, non-phosphorylated, 4 - HMGN1, delta20E, delta24E, phosphorylated, 5 - HMGN2, non-phosphorylated, and 6 - HMGN2, phosphorylated. Molecular weight markers (not shown) confirm the size of each recombinant protein. The primary antibody was diluted 1:1,000 for this experiment. The blot was processed using a 5 sec exposure time. Personal Communication, Yuri Postnikov, NIH, CCR, Bethesda, MD.