1174 



SUBJECT INDEX 



Homogentisate, p - hydroxyphenylpyru- 



vate oxidase, 306 

 Homogentisate oxidase, 



o-iodosobenzoate, 709, 717 



mercurials, relation to Fe++, 771-772, 



787 

 Homogentisicase, 



ferricyanide, 673, 675 



o-iodosobenzoate, protection by sub- 

 strate, 717 



mercurials, 782 



protection by Fe++, 782 

 protection by homogentisate, 782 

 Homolog, definition of, 246 

 Homooxybiotin, yeast fermentation, 588- 



589 

 D-Homoserine, L-threonine synthetase, 357 

 DL - Homoserine, thetin : homocysteine 



transmethylase, 357 

 L-Homoserine, aspartokinase, 356 

 Homoserine deaminase, 



o-iodosobenzoate, 709 



mercurials, 843 

 Homoserine kinase, analogs, 357 

 Hordeum vulgar e (cape barley), see also 



Barley roots 



succinate dehydrogenase, malonate, 27 

 Hormosira hanlcsii, 



K+ uptake, mercurials, 908 



respiration (endogenous), mercurials, 



881 

 Horseshoe crab, see Limulus 

 Hyaluronate, 



glucoronidases, 465 



lysozyme, 459 



ribonuclease, 462 

 Hyaluronidase, macroions, 459-461 

 Hydrazine, diamine oxidase, 362 

 Hydrocinnamate, see also /3-Phenylpro- 



pionate 



acetoacetate formation from butyrate, 



613 



D-amino acid oxidase, 342-343 



ammonia formation in kidney, 348 



carboxypeptidase, 365-366 



chymotrypsin, 369-370, 372 



dopa decarboxylase, 311 



histamine release, 374 



Hydrocinnamide, chymotrypsin, 372 

 Hydrogen, 



formation in Chlorella, mercurials, 891 



nitrogen fixation, 292-293 



physical properties, 295 

 Hydrogenase, 



analogs, 293-294 



ferricyanide, 676 



iodine, 685 



o-iodosobenzoate, 709 



malonate, 61 



quinacrine, 551 

 Hydrogen bonding, 



reactivity of enzyme SH groups, 644- 



646 



SH groups, 640 

 Hydrogenlyase, 



hydrogen peroxide, 693 



permanganate, 660 

 Hydrogenomonas facilis, COg fixation, 



mercurials, 892 

 Hydrogen peroxide, see also Peroxides 



GSH oxidation by, 694 



potentiation of azide toxicity 696 



potentiation of toxicity by iodoacetate, 



696 

 Hydroquinone, 



D-amido acid oxidase, 344 



catechol oxidase, 298 



tyrosinase, 304 

 Hydroquinone monobenzyl ether, see 



Monobenzone 

 Hydroxocobalamin, diol dehydrase, 590 

 Hydroxyacetate, see Glycolate 

 D-a-Hydroxy acid dehydrogenase, 



analogs, 436-437 



malonate, 61, 65 



oxalate, 435-437 

 L-a-Hydroxy acid oxidase, 



o-iodosobenzoate, 709 



mercurials, 843 



quinacrine, 551 

 L-3-Hydroxyacyl-CoA hydro-lyase, see 



Enoyl-CoA hydratase 

 3 - Hydroxy - N - allylnormophinan, mor- 

 phine iV-demethylase, 597 

 2-Hydroxy-6-aminopurine, xanthine oxi- 

 dase, 282 



