Mitogen-activated protein kinase p38 is a serin/threonine kinase originally isolated from lipopolysaccharide stimulated monocytes. There are 4 isoforms; p...Mitogen-activated protein kinase p38 is a serin/threonine kinase originally isolated from lipopolysaccharide stimulated monocytes. There are 4 isoforms; p38-a activation has been most widely studied for inflammation...