Comparative studies of Ca2+-dependent proteases (CDP I and CDP II) from Allomyces arbuscula.

Allomyces arbuscula, an aquatic fungus, contains two Ca2+-dependent neutral cysteine proteases (CDP I and CDP II), eluting respectively, at 0.07 and 0.2 M NaCl from DEAE cellulose columns.

T cell epitopes in experimental autoimmune myasthenia gravis of the rat: strain-specific epitopes and cross-reaction between two distinct segments of the alpha chain of the nicotinic acetylcholine receptor (Torpedo californica).

T cell epitopes on the nicotinic acetylcholine receptor (A ChR) of Torpedo californica were analyzed using T cell lines isolated from Lewis, BN, and (Lewis X BN)F1 rats. All lines selected for reactivity against either native or denatured AChR or for 6 selected synthetic peptides of the AChR alpha chain expressed the CD4 membrane phenotype and recognized their antigen in the context of major histocompatibility complex class II determinants. They were tested in vitro for reactivity with each of these antigens.