SUBJECT INDEX 
Lysis, of blood cells, 224 
Lysol, effect on urine amino acids, 277 
Lysopine, occurrence in plants, 44 
Lysosomes, hydrolytic enzymes, 707 
Macrocentus sp., amino acids, 123 
Macrothylacea vubi, pool changes in develop- 
ment, 125 
Maia squinado, amino acids, 161 
Maiden hair fern (see Adiantum pedatum) 
Malacosoma americana, amino acids, 118 
Maleic acid, effect on urine amino acids, 277 
Maleuric acid, effect on pool in tumors, 313 
Malic acid, induction of aminoaciduria, 259 
Malignancy, effect on glutamic acid in plasma, 
35°, 351 
—, — urine amino acids, 276 
Malnutrition, effect on blood amino acids, 196 
Mammalian cells, cultured, amino acids, 696 
—, —, protein turnover, 704, 705 
—, growth medium, 694, 695 
Mammals, amino acid excretion by, 201 
Manganese, role in amino acid transport, 565 
Maple-syrup urine disease, 196, 213-215, 254, 
255, 519, 521 
Marfan’s disease, 273 
Marine animals, pool size, 160 
— crustacea, amino acids, 173 
— gastropods, amino acids, 172 
— invertebrates, amino acids, 163 
—  —, importance of taurine, 158 
Marisa cornuarietis, taurine, absence, 1605 
Megascolides cameront, biosynthesis of lombri- 
cine, 169 
Melanoma in Drosophila, effect on pool, 129 
Melanoplus differentialis S, (egg) amino acids, 
125 
Melolontha sp., soluble proteins, 128 
— vulgaris, amino acids, 119 
Membrane, asymmetry, 762 
Membrane, binding of amino acid, 611 
—, cell, effect steroids on, 267 
—, effect boron deficiency, 665 
—, enzymes, 590 
—, Escherichia coli protoplast, 768 
—, importance in nervous system, 722 
—, intracellular, Lactobacillus avabinosus, 583, 
584 
—, lipid—amino acid, 748, 752 
—, location of encymes, 776 
— permeability, change in yeast, 99 
—, rat liver nuclei, permeability, 770 
—, stability, 580, 581, 586, 587 
Menstrual cycle, effect on amino acid excretion, 
228, 229 
—, — in plasma, 237 
Mental deficiency, in argininosuccinic aciduria, 
215 
—, cystathionuria in, 217 
—, in Hartnup disease, 208 
—, in Lowe syndrome, 257 
—, urine amino acids, 275 
Meprobamate, effect on brain glutamic acid, 
468 

799 
Mesodon thyroidus, taurine, absence, 165 
Metabolic diseases, dietary control, 518 
Metal ions, effect on amino acid reabsorption, 
256, 259 
—, — urine amino acids, 277 
—, role in transport, 565 
Metamorphosis, pool changes, 125, 126 
Methamphetamine, effect on brain glutamic 
and acetylaspartic acids, 468 
Methionine, in Avenicola cristata, metabolism, 
168 
—,in blood plasma, in maple-syrup urine 
disease, 213 
—, conversion to taurine, 166 
—, difference in male and female Drosophila, 
118 
—, oxidation by liver and non-hepatic tissues, 
Owe 7 19 
—, recovery in column chromatography, 222 
— sulfoxide, excretion after X-irradiation, 250 
—, synthesis from aspartic acid, 643 
—, toxicity, 523 
—, uptake by slime mold, 683 
4-Methoxymethylpyridoxine, effect on amino 
acids in brain, 499, 501 
Methoxypyridoxine, convulsions, 467 
Methyl(bis)$-chloroethylamine (see Nitrogen 
mustard) 
a-(Methylenecyclopropyl) glycine, hypo- 
glycaemic action, 52 
—, identification, 49 
—, occurrence in Litchi chinensis, 44, 48 
y-Methyleneglutamic acid, occurrence in Savaca 
indica (seeds), 33 
y-Methyleneglutamine, occurrence in Savaca 
indica (seeds), 33 
—, — tulip bulb, 27 
2-Methylene-3-oxocyclopentanecarboxylic acid 
(see Sarkomycin) 
y-Methylglutamic acid, occurrence in Lilia- 
ceae, 27 
Methylglycine, in urine of newborn, 272 
Methylhistidine, in human urine, 227, 230, 350 
1-Methylhistidine, effect diet on, 229 
—, in urine, 199, 201 
3-Methylhistidine, in human urine, 200 
y-Methyl-y-hydroxyglutamic acid, occurrence 
in Liliaceae, 27 
y-Methyllanthionine, occurrence in yeast, 91 
«-Methylpantothenate, effect on urine amino 
acids, 461-464 
N-Methylpicolinic acid, in squid nerve, 475 
a-Methyltyrosine, uptake by brain, 546, 547, 
351 
Metrazole, effect on brain acetylaspartic acid, 
468 
Metridium senile, amino acids, 178, 180 
Microbiological assay, use in studying pool, 158 
Micrococcus lysodeikticus, lysine accumulation, 
577 
Microorganism, symbiotic in insects, 132 
Microsomes, incorporation of phenylalanine 
into lipid and protein, 743 
—, peptides, 739 
