676 



INDEX 



1-Methylthymine, formation of, 144 

 0-Methyl-L-tyrosine, occurrence of, 95, 



160 

 1-Methyluracil, 



dissociation constants of, 455, 457 



formation from uridine, 144 

 3-Methyluracil, dissociation constants 



of, 455, 457 

 4-Methyluracil, 86 



conversion to chloro derivative, 127 



orotic acid and, 101 



reduction of, 119 

 5-Methyluracil, see Thymine 

 6-Methyluracil, uracil oxidase and, 622 

 1-Methyluric acid, oxidation of, 616 

 3-Methyluric acid, oxidation of, 616 

 7-Methyluric acid, 



oxidation of, 616 



uricase and, 618 

 9-Methyluric acid, oxidation of, 616 

 1-Methylxanthine, dissociation constants 



of, 456-457, 458 

 3-Methj'lxanthine, dissociation constants 



of, 456-457, 458 

 7-Methylxanthine, 143 



dissociation constant, 456-457, 458 

 8-Methylxanthine, formation of, 119 

 9-Methylxanthine, 143 



acid-base properties of, 477 



dissociation constant, 456-457, 458 

 Methylxanthines, 



infrared absorption of, 547 



ultraviolet absorption of, 552 

 Microorganisms, 



deoxypentose nucleic acid, 

 composition of, 356-358 

 extraction of, 330-332 



deoxyribonucleases of, 584-585 



pentose nucleic acid, 

 isolation, 390-391 

 nucleotides of, 402-403 



pentose nucleoprotein isolation, 379 



ribonucleases of, 576 

 Microsomes, 



composition of, 374-375 



nucleic acid, analysis of, 207-209 

 Mitochondria, 



deoxyribonuclease and, 624, 625 



nucleic acid, analysis of, 207-209 



ribonuclease and, 624, 625 



Molecular weight, 



deoxypentose nucleic acids, 470-474 

 pentose nucleic acids, 474-475 

 Molybdenum, xanthine oxidase and, 611 

 Mononucleotides, 



deoxyribonuclease and, 578 

 electrometric titration of, 410 

 esters of, 415-418 

 infrared absorption and, 549-550 

 intestinal phosphatase and, 589 

 ion exchange, 

 distribution coefficients, 221-223 

 elution, 223-224 

 ionic properties, 221 

 isomer separation, 225-230 

 separation from other phosphates, 

 224-225 

 phosphodiesterase and, 585 

 polymerization of, 557 

 ribonuclease and, 427 

 Morpholine, paper chromatography and, 



251-253 

 Murexide, 122 

 Muscle adenylic acid, see Adenosine-5'- 



phosphate 

 Muscle inosinic acid, see Inosine-5'- 



phosphate 

 Myokinase, transphosphorylation and, 



626 

 Myosin, birefringence of, 535 



N 



Naphthalene, dichroism of, 538 

 N-(1-Naphthyl)ethylenediamine, ade- 

 nine determination and, 120, 304 

 Nebularine, 



biological activity of, 94 

 isolation of, 60 

 structure of, 93-94, 188 

 synthesis of, 61 

 Nicotinamide, 40 

 diphosphopyridine nucleotide hydro- 

 lase and, 608 

 N-glycosides of, 181 

 Nicotinamide nucleoside phosphorjdase, 



603 

 Nicotinamide-S'-nucleotide, 5'-nucleo- 



tidase and, 592 

 Nicotinamide riboside, 36, 604 



hydrolysis of, 606 

 Nitrate reductase, molybdenum and, 611 



