INDEX 



Acetylsulphanilamide,synthesis,i03 

 Adaptation, 13 

 Adenine, deamination, 136 

 — , in nucleic acids, 126-7 

 Adenosine, deamination, 136 

 — , triphosphate, 3 

 Adenyhc acid, co-factor for deami- 

 nases, 23-5 

 D- Alanine and Lb. casei, loi 

 — , replacement of pyridoxin, 28, 



lOI 



L-Alanine, as H-donor, 17, 18, 21 



— , deamination, 11, 17 



— , fermentation, 21 



— , from kynurenine, 14 



— , racemase, 95 



— , transamination, 60-4 



Alcohols from amino-acids, 22 



Aldolase, 139 



Algae, nitrogen-fixation, 50 



Amines, from amino-acids, 27 



D-Amino-acids, in antibiotics, 96-7 



— , in capsules, 96 



- — , in peptides, 96-7, 155 



— , oxidase, 11 



— , racemase, 95 



— , utilization, 95 



L- Amino-acids, acetylation, 104 



— , active transport of, 91 



-^, antagonism, 65 



— , as H-acceptors, 18 



— , as H-donors, 17 



— , as sources of carbon and nitro- 

 gen, 20-2 



— , assay by decarboxylases, 28 



— , decarboxylases, 27-9 



— , fermentation, 17-22 



— , free in Gram-positive bac- 

 teria, 82 



— , in bacterial proteins, 95 



— , oxidase, lo-ii 



— , synthesis, 60-78 



— , transamination, 60-4 



— , uptake, 80-93 



— , — , by Staph, aureus^ 86-9 



— , — , by Strep, faecalis, 83-9 



— , — , by yeast, 89 



— , — , glutamic acid, 86-9, 91-3 



— , — , lysine, 83-6, 90-1 



— , — , mechanism, 89 



^-Aminobenzoic acid, in folic acid, 

 146 



, sulphonamide antagonist, 146 



Aminofumaric acid, 139 



, diamide, 139 



4-Aminoimidazole-5-carboxamide, 



137-8 

 Aminopolypeptidases, 113 

 Ammonia, and biotin-deficient 



yeast, 25 

 — , as source of nitrogen, 4 

 — , excretion by CI. pastenrianum, 



.54 . . 

 — , inhibition of nitrate reduction, 



34 



— , — of nitrogen-fixation, 54 



— , intermediate in nitrogen- fixa- 

 tion, 52 



— , liberation by deaminases, 10-26 



— , oxidation, 32 



Anaerobic a-deaminases, 22 



Anaerobic metabolism, amino- 

 acids as H-acceptors, 17 



, nitrate as H-acceptor, 39 



Anthranilic acid, excretion by 

 Salm. typhosa, 64 



, 3-hydroxy-, 72 



, in tryptophan synthesis, 64, 



. .71 



Antibiotic polypeptides, composi- 

 tion, 97 



Antibiotics, 151 



Arginine, as essential amino-acid,26 



— , as possible energy source, 27 



— , cycle, 69 



— , decarboxylase, 27 



— , dihydrolase, 26 



— , exacting mutants, 69 



Asparaginase, 98 



Aspartase, 22, 60 



Aspartic acid, deamination, 23 



, in arginine synthesis, 70 



, in nitrogen-fixation, 55 



, transamination, 61-3 



Aspergillus nidulans, use of mut- 

 ants, 66, 75 



Aspergillus niger, L-amino-acid 

 oxidase, 11 



, synthesis of cysteine, 75 



, use of mutants, 66 



159 



