732 



SUBJECT INDEX 



Cytochrome c (contd.) 



magnetochemistry, 352, 354 (table) 



molecular weight, 347 



and myohemoglohin, 357 



oxidation-reduction potential, 349 



in plants, 347, 379 



porphyrin c, 350 



properties, 347 ff. 



protein, 356, 357 (table) 



in spermatozoa, 378 



surface properties, 357 



in tumors, 377 (table), 378 



turnover number, 375 



in vertebrate tissues, 377 ff. 

 Cytochrome Ci, 347 

 Cytochrome oxidase, 366 



anabolism, 627. See also Copper. 



in animals, 373, 377 ff. 



catabolism, 568 



complex with cytochrome c, 367, 397 



estimation, 367 



fractions, 367 



in glutathione oxidation, 376 



mode of action, 397 



partition (CO/0^,) constant. See 

 ■Partition constants. 



in plants, 379 



preparations, 366 



and respiratory ferment, 366, 398 



in scurvy, 615 



in yeast (cyanide-resistant), 379 

 Cytochrome reductase, 374, 522 



D 



Dehydrobilirubin. See Biliverdin. 

 Denaturation, 253 

 bond changes in, 254 

 of hemoglobin, 222, 223, 253 ff. 

 by acid, 256 

 by alkali, 255, 319, 321 

 by amides, 257 

 by salicylate, 257 

 reversible, 254, 255, 256, 257, 259 

 Deuterohematin, 53 (table), 56, 61, 402, 



425 

 Deuteroporphyrin, 51 (table), 53 (table), 

 61, 69 (table), 74-76 (tables) 

 in feces, 61, 588 



and gastrointestinal hemorrhage, 592 

 in putrefying meat, 592 

 synthesis, 5& 

 Diacetyldeuterohemoglobin, 240 

 Diacetyldeuteroporphyrin, 56, 62 



Diaphorase, 375 



Dicyanide ferriporphyrin, 187 



absorption spectrum, 189 (table), 191 



bond type, 191 



and cysteine oxidation, 341 



dissociation constant, 189 (table) 

 Dihydromesobilirubin.SeeMeso6i7ene-(a). 

 Dihydroxymaleic acid oxidase, 433, 435, 

 653 



mode of action, 437 

 Dipyrrylmethanes, hydroxylated, 125, 



128, 138. See also Bilirubinic acid. 

 Dithionite, as reducing agent, 476 



Eggs. See also Embryo. 



bird, hemoglobin in, 604, 616 

 oocyan, 114 



ooporphyrin, 50 (table), 60, 585 

 peroxidase in, 436 

 porphyrin in, 630 

 invertebrate, grasshopper, catalase in, 

 416 

 cytochrome system in, 378, 382, 



383 

 peroxidase in, 436 

 sea urchin, cytochrome system in, 378, 

 381, 382, 383 

 Ehrlich aldehyde reaction, 137. See also 

 Mesobila ne, Tetrahydromesobilane, 

 Porphobilinogen . 

 green reaction, 158 

 Ehrlich diazo reaction in urine, 151 

 Embryo. See also Eggs, Fetus. 

 catalase in, 416 

 cytochrome system in, 377 (table), 378, 



383 

 hemopoiesis in, 580, 604, 623 

 porphyrin in, 580, 594, 630 

 Enterohepatic circulation 

 of bilirubin, 549 

 of urobilin, 504, 554, 555 

 Erythrocruorins, 306, 307 (table), 309. 

 See also Hemoglobin. 

 adaptation (functional) of, 332 

 amino acid composition, 315 

 and ascorbic acid, 309, 531 

 biological function, 335 

 distribution, 307 (table) 

 ferrierythrocruorin, 309 

 of Gastrophilus, 262 

 isoelectric point, 314, 316 



