546 



IMMUNO-CATALYSIS 



Trypsin, 106, 249-253 



activation of trypsinogen by, 114 

 prothrombin — > thrombin by, 

 279, 289, 435 

 antibody against, 40, 110 

 clotting, relation to, 279 

 collagen, action on, 359 

 complex formation with ascarase, 



virus, 183 

 histamine, liberation of, 405-406 

 inhibition by 



inhibitors from pancreas, serum, 

 162-163 

 from earth w^orm, 181 

 lipids, 433-434 

 ovamucoid, 114 

 soybean globulin, 114 

 inhibitor, 114, 162-163, 178-180, 

 249-250, 273-274 

 complex, 158, 162-163 

 specificity, failure to inhibit milk 

 clotting by pepsin, 114 

 lipid complex with, activation of, 



440 

 molecular weight of, 107 

 muscle, action on, 359 

 pharmacological effects, 435 

 sensitization with, 4 1 

 shock, 404-405, 435 

 serological specificity in relation to 



trypsinogen, 110 

 tissue damage caused by, 435-436 

 toxicity of, 252-253 

 Trypsinogen, 106 



activating factors, 107 

 activation into trypsin, 107, 109 

 molecular weight of, 107 

 serological specificity in relation to 

 trypsin, 110 

 Tryptophan, 32, 80, 107 

 Typhoid 



antibody against, 137 

 antigen, life in host, 58 

 infection, 31 



Typhosa, E. 



metabolism, effect of antiserum on, 

 388-390 

 Tyrosinase 



antibody against, 393 

 crystalline, 26, 30 

 inhibition by organic acids, 167 

 Tyrosine, 79, 107 

 acylation, 199 

 a-amylase, in relation to activity, 



199 

 ^-amylase, in relation to activity, 



219-220 

 chymotrypsin, in relation to activity, 



201 

 pepsin, 201 

 tobacco mosaic virus, 201 



U 



Ultracentrifuge, 9 

 Urease, 26, 30 



antibody against, 39-40, 331-332 

 as antitoxin, 39, 212, 331-332 

 thiol groups in, 203 



reversible inactivation, 203, 208 

 serological specificity, relation to, 

 203, 208 

 toxicity of, 40, 331-332 



neutralization by anti-urease, 40, 

 212, 331-332 

 Uridine-diphosphate-glucose 



coenzyme of galactowaldenase, 98 

 "Urprotein," 106 



Venoms (snake) (see also Snake) 



antibody against, 145 



detoxification by tannin, 187 



proteinases in, 255 



antibody against, 255, 290-294 



thrombin in, 289-291 

 Verdo-peroxidase, 364 

 Vibrio cholera, 3 



toxin, adsorption on charcoal, 188 

 Vibrio coma, enzymes of, 357 



