SUBJECT INDEX 
Human, urine, effect glutamine on amino acids, 
(continuation) 
—, —, — —,inchronic lymphatic leukemia, 444 
, taurocyamine, 167 
Hydrocortisone, effect on amino 
plasma, 237 
—, — pool in Neurospora crassa, 99 
Hydrogen ion, effect on amino acid transport, 
542 
Hydrolysis, enzymatic of peptides, 513 
Hydrophilus piceus, amino acids, 117, 119 
Hydrostatic pressure, effect on pool retention, 
IOI 
f-Hydroxy-y-aminobutyric acid, in brain, 474 
Hydroxyaspartic acid, occurrence, 5 
2-Hydroxyethanesulfonic acid, in squid giant 
nerve axoplasm, 476 
N4-(2-Hydroxyethyl)-L-asparagine, occurrence 
in Bryontia dioica, 44 
b-Hydroxyglutamic acid, occurrence, 5 
y-Hydroxyglutamic acid, conversion to di- 
hydroxyglutamic acid, 19 
—, determination of configuration, 19-21 
—, in Hemerocallis, 40, 71 
—, identification, 18—22 
—, infrared spectra, 24 
—, in Phlox decussata, 18, 71 
—, in Phlox paniculata, 40 
—, in plants, 18 
—, separation of diastereoisomers, 19 
—, synthesis, 18, 19 
S-Hydroxyisopentanylcysteine, 
urine, 201 
Hydroxylamine, effect on amino acids in brain, 
466, 467, 502, 503 
—, reaction with lipid—amino acid, 754 
Hydroxy] ion, effect on release of amino acids, 
IOL 
Hydroxylysine, in Corynebacterium diphtheriae, 
80, 81 
— phosphate, in nervous tissue, 479 
—, separation from allohydroxylysine, 12 
b-Hydroxy-f-methylaspartic acid, synthesis, 
8, Io 
y-Hydroxy-y-methylglutamic acid, in growing 
apex of Adiantum, 668 
—, metabolic role, 33, 35 
—, occurrence in tulip, 33 
p-Hydroxyphenylalanine oxidase, 270 
N°*-p-Hydroxyphenyl-L-glutamine, occurrence 
in Agaricus hortensis, 44 
p-Hydroxyphenylpyruvic oxidase, 270 
Hydroxypipecolic acid, in Liliaceae, 27 
Hydroxyproline, in carrot protein, 686 
—, chicken, heart, changes during 
development, 301, 302 
—, collagen synthesis, 273 
—, detection on paper chromatograms, 9 
—, excretion of, effect of age, 272 
—, — by human newborn, 201 
—, — in vitamin C deficiency, 258 
—, human blood plasma, 234 
—, separation from allohydroxyproline, 12, 13 
——LORICI Ey 2S 

acids in 
excretion in 
795 
p-Hydroxyproline, occurrence in collagen, 7 
y-Hydroxyproline, configurational relation to 
y-hydroxyglutamic acid, 21 
8-Hydroxyquinoline, effect on 
accumulation, 576 
—, — transport, 565 
5-Hydroxytryptamine, occurrence in inverte- 
brates, 171 
y-Hydroxyvaline, identification, 38 
—, occurrence in plants, 35, 37 
—, relation to serine and threose, 39 
Hymenolepsis diminuta, pyrimidine 
dation, 169 
Hymenoptera, amino acids, 117, 120, 121, 123 
Hyperaminoaciduria, in pregnancy, 229 
Hyperphosphatasia, 255 
Hypoglycemia, 520 
—, effect on amino acids in rat tissues, 341-343 
Hypoglycin A, occurrence in Blighia sapida, 
48, 56 
Hypomyces aurantius, amino acids, 88 
Hypophysectomy, effect on amino acids in rat 
tissues, 345, 346 
Hypotaurine, in invertebrates and rat liver, 167 
—, In nervous tissue, 479 
Hypothalamus, role in hunger feeling, 522 
amino acid 
degra- 
Identification of amino acids, 354 
Idiopathic hyperglycinemia, 256 
Ileum, chicken, serine ethanolamine phospho- 
diester, 190 
Imipramine, effect on amino acids in brain, 
465-467 
Indigofera, P-nitropropionic acid, 41 
Indolylacetic acid, 
excretion in Hartnup disease, 208 
—, — phenylketonuria, 213, 255 
Indolylglutamine excretion in Hartnup 
disease, 208 
Indolyllactic acid, excretion in pheny]- 
ketonuria, 213, 255 
Indoxylacetic acid, excretion in phenyl- 
ketonuria, 255 
Induction, galactoside permease in Escherichia 
coli, 613, 614 
Infants, amino acids excretion, 201 
Infarction, effect on amino acids in tissue, 510 
Infectious diseases, effect on urine amino acids, 
277 
Infrared spectra of y-hydroxy glutamic acids, 
24 
Ingestion, glutamine, effect on amino acids in 
blood and urine, 430-447 
Inorganic ions, effect on pool content, 669 
Inositol, population-dependent growth 
requirement, 701 
Insecticides, effect on brain aminoacids, 515, 516 
—, — nervous system, 515, 516 
Insects, hemolymph, amino acids, 
TIQ—122, 126, 131 
Insulin, effect on tissue amino acids after he- 
patectomy, 449, 459 
—,'— transport, 267 
—, — urine amino acids, 275 
II5—I117, 
