1176 



SUBJECT INDEX 



Hydroxyphenylacetates, 



glutamate decarboxylase, 329 

 tyrosine:a-ketoglutarate transaminase, 

 305-306 



Hydrox yphenylalanines, tyrosine - a - keto- 

 glutarate transaminase, 305-306 



p-Hydroxyphenyllactate, p-hydroxyphe- 

 nylpyruvate oxidase, 306 



m-Hydroxyphenylpyruvate, p-hydroxy- 

 phenylpyruvate oxidation, 272, 306, 

 595 



p-Hydroxyphenylpyruvate, 

 glutamate decarboxylase, 329 

 oxidation of, m- hydroxy phenylpyru- 

 vate, 272, 306, 595 

 peroxidase, 599 

 pyruvate decarboxylase, 431 



Hydroxyphenylpyruvates, dopa decar- 

 boxylase, 312 



p-Hydroxyphenylpyruvate oxidase, 

 analogs, 305-306 

 m-hydroxypenylpyruvate, 306, 595 



Hydroxyproline, 



A i-pyrroline-5-carboxylate dehydroge- 

 nase, 336, 355 



A i-pyrroline-5-carboxylate reductase, 

 355 



/3-Hydroxypropionate-phosphate,cnolase, 

 410 



/5-Hydroxypropionitrile, structure of, 41 



Hydroxypurines, keto-enol equilibria, 280 



3-Hydroxypyridine, glucose dehydroge- 

 nase, 501 



a-Hydroxy-2-pyridine methanesulfonate, 

 glycolate levels in tobacco, 439 

 glycolate oxidase, 438 

 photosynthesis, 439 

 structure of, 438 



Hydroxypyruvate, 



lactate dehydrogenase, 437 

 pyruvate decarboxylase, 432 



Hydroxypyruvate reductase, mercurials, 

 protection by hydroxypyruvate, 782 

 protection by NADH, 782 



a-Hydroxysteroid dehydrogenase, estra- 

 trienes, 449 



)5-Hydroxysteroid dehydrogenase, ana- 

 logs, 447, 449, 450 



a-Hydroxy-/S-sulfopropionate, fumarase, 

 243, 275, 277 



5-Hydroxytryptamine, see Serotonin 



5 - Hydrox y try ptophan , 



histidine decarboxylase, 353 

 tryptophan pyrrolase, 324-325 

 L-tryptophan:sRNA ligase (AMP), 326 



7-Hydroxytryptophan, tryptophan pyr- 

 rolase, 324 



5-Hydroxytryptophan decarboxylase, 

 o-iodosobenzoate, 709, 718 

 a-methyldopa, 309-310 



Hymenolepsis diminuta, 



malonate metabolism in, 228 

 respiration (endogenous), malonate, 173 

 succinate dehydrogenase, malonate, 28 



Hypochlorite, amino acid oxidation by, 

 658 



Hypophosphate, 



oxidative phosphorylation, 448 

 succinate dehydrogenase, 243 



Hypophosphite, 



formate dehydrogenase, 593 

 formate hydrogenlyase, 593 



Hypoxanthine, 



D -amino acid oxidase, 545 



urate uptake by erythrocytes, 267 



Idose, fructokinase, 376 



IDP, see Inosinediphosphate 



Imidazole, 



diamine oxidase, 365 

 histidase, 353 



histidine decarboxylase, 352 

 A i-pyrroline-5-carboxylate dehydroge- 

 nase, 355 



A i-pyrroline-5-carboxylate reductase, 

 355 



Imidazoleacetate, histidase, 353 



Imidazole-iV^-methyltransferase, mercu- 

 rials, 843 



Imidazolonepropionate hydrolase, hydro- 

 gen peroxide, 693 



Imidodipeptidase, see Prolidase 



IMP, see Inosinemonophosphate 



Indene, tryptophanase, 324 



