title: Studies on phytohemagglutinins. XL. Importance of tryptophan residues for the activity of pea phytohemagglutinin.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001120:Arginine; D001665:Binding Sites; D002850:Chromatography, Gel; D002942:Circular Dichroism; D006384:Hemagglutination; D006639:Histidine; D006863:Hydrogen-Ion Concentration; D037102:Lectins / Q000032:analysis / Q000037:antagonists & inhibitors / Q000528:radiation effects; D008345:Manganese; D008751:Methylene Blue; D011485:Protein Binding; D011487:Protein Conformation; D011830:Radiation Effects; D014364:Tryptophan; D014443:Tyrosine; D014461:Ultracentrifugation; D014466:Ultraviolet Rays
chemical_list: D000596:Amino Acids; D037102:Lectins; D014443:Tyrosine; D008345:Manganese; D006639:Histidine; D014364:Tryptophan; D001120:Arginine; D008751:Methylene Blue