SUBJECT INDEX 



741 



Peroxidase (conld.) 



cytochrome c-peroxidase, 432, 435 



distinction from oxidases, 401, 431, 432 



estimation, 422 



hemin from, 419 



of horse-radish, 419, 420 ff. 



absorption spectra, 420, 421 (table) 

 alkaline peroxidase, 427 

 compounds, 420, 421 (table) 

 electrometric titration 



of enzyme and apoenzyme, 425, 



426, 428 (table) 

 of ferro- and ferriperoxidase, 426, 

 427 

 glucuronic acid in, 425 

 isolation, 420 



linkage between protein and pros- 

 thetic group, 425 

 magpetochemistry, 421 (table), 426 



427 

 paraperoxidase, 420, 425 

 protein, 424 

 reversible splitting, 425 

 inhibitors, 421 

 kinetics, 422 

 lactoperoxidase, 429, 430 (table), 435, 



545 

 mode of action, 436 

 myeloperoxidase of leucocytes, 430, 431 



(table), 435 

 in plants, 419, 428, 434 

 Purpurogallin-Zahl (PZ), 422 

 specificity, 422 flf. 

 and thyroxine formation, 435 

 verdoperoxidase. See Myeloperoxidase, 

 Lactoperoxida.se. 

 Perturbation, 253, 489 

 7>-Phenylenediamine and cytochrome 



system, 376, 382 

 Phenylhydrazine 



and bile pigment formation, 524, 527, 



539 

 and porphj-rin formation, 628 

 Phenylhydroxylamine 



and hemoglobin, 390, 520 

 inhibition of catalase, 410, 521 

 Pheohemins, 201 

 Pheohemoglobins, 240 

 Pheophorbide-6 hemoglobin, 240 

 Photocatalase. See Photo.s'yiithe.ns. 

 Photoreduction of CO^, 451. See also 

 Hydrogenase. 

 in evolution, 650 



Photosynthesis. See also Chlorophyll, 

 Bacieriochlorophyll. 



algae chromoproteins in, 571 



hematin catalysts in, 450, 647 



photocatalase, 450, 651 



pyrrole pigments in, 1, 647 

 Phthalocyanins, 80, 89, 448 



complex salts, 160, 161, 402, 448 

 Phycocyanins, 145 fl., 146 (table) 



in photosynthesis, 571 



prosthetic group (phycocyanobilin), 



127. See also Me-iolnliviolin. 

 Phycoerythrins, 145 ff., 146 (table) 



in photosynthesis, 571 



prosthetic group fphycoerythrobilin), 



128. See also Mexobilierythrin. 

 Phyllins, 93 



Phylloerythrin, 125, 549, 581 

 Phylloporphyrin, 53 (table), 581 



and oxyporphyrin, 92 

 Polycythemia, 615, 619, 620, 625 



of newborn, 537, 606 

 Porphin, 49, 58, 69 (table), 74 (table), 76 

 (table) 

 "isoporphin," 69 (table), 83 

 Porphin polycarboxylic acids, 68. See 

 also Conchoporphyrin, Copropor- 

 phyrin. Uroporphyrin. 

 Porphobilin, 144 



Porphobilinogen, 144, 151, 157, 587, 595, 

 638 

 Ehrlich aldehyde reaction, 151 

 Porphyrias, 580," 581, 586, 589, 590 (table), 

 591 (table), 592, 595, 599, 600, 601, 

 629, 630, 637, 638. 643 

 Porphyrinogens, 77 



Porphyrins. See also individual por- 

 phyrins, 

 absorption spectra, 71, 74 (table), 75 

 (table), 76 (table) 

 and nuclear structure, 84 

 adsorption and surface properties, 70 

 aggregation, 73, 241 

 in bile, 581 



in bone marrow, 580, 630 

 competition between, in vivo, 608 

 destruction in vivo, 582 

 dualism, 586 ff., 648 

 in erythrocyte. See Erythrocyte. 

 esterification, 70 

 estimation, 87 

 excretion, 586 ff. 

 in feces, 588, 590 (table), 597, 631 



