Near-ultraviolet absorption bands of tryptophan. Studies using indole and 3-methylindole as models.
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Chemical Phenomena↗
Biomedical subjects
J Horwitz
Publications and source records attributed to J Horwitz.
Low temperature circular dichroism of tyrosyl and tryptophanyl diketopiperazines.
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Chemical Phenomena↗
Analysis of the vibrational structure in the near-ultraviolet circular dichroism and absorption spectra of tyrosine derivatives and ribonuclease-A at 77 degrees K.
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Cold Temperature↗
Circular dichroism studies at variable temperature: urobilinoid conformation.
Measurements of the temperature dependence of the circular dichroism spectra of l-stercobilin and d-urobilin show that the conformations of these optically-active urobilinoids change with temperature between 163 and 297 degrees K. These conformational changes depend critically on the hydrogen bonding characteristics of the solvent. Thus, in methanol-glycerol (9:1), the chiral sense of the helical conformation of the dipyrrylmethene chromophore is reversed on lowering the temperature, whereas in chloroform, reversal does not occur.
Bile Pigments↗
Fine structure in the near ultraviolet circular dichroism and absorption spectra of tryptophan derivatives and chymotrypsinogen A at 77 degrees K. UCLA 12-724.
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Chemical Phenomena↗
Analysis of vibrational structure in the near-ultraviolet circular dichroism and absorption spectra of phenylalanine and its derivatives.
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Chemical Phenomena↗
Fine structure in the near-ultraviolet circular dichroism and absorption spectra of tryptophan derivatives and chymotrypsinogen A at 77 degrees K.
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Alkanes↗
Histochemical similarities between newborn and leukaemic myeloid cells and their possible significance.
The neutrophilic alkaline phosphatase activity of 40 newborns was determined and found to be frequently raised, similarly to a leukaemoid reaction. The newborn neutrophil has strong alkaline phosphatase activity and is unlike the myeloid leukaemia cell which has no alkaline phosphatase activity.
Alkaline Phosphatase↗
A new and unique method for detecting bacterial deoxyribonuclease in the clinical laboratory.
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Deoxyribonucleases↗
[Epidemiology and prevention of alcoholism. Preliminary considerations].
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Alcoholism↗
[Evaluation of the results of the treatment of alcoholism].
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Adult↗
[Treatment and prevention of alcoholism].
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Alcoholism↗
Peroxidase isoenzymes from horseradish roots. 3. Circular dichroism of isoenzymes and apoisoenzymes.
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Binding Sites↗
Circular dichroism of horseradish peroxidase isoenzymes and apoisoenzymes. UCLA-12-686.
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Isoenzymes↗
Low temperature circular dichroism of proteins and amino acids. UCLA-12-686.
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Phenylalanine↗
Increased resolution of circular dichroic spectra using a computer of average transients.
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Computers↗
Crosscultural definitions applied to the study of functional psychoses in Chilean Mapuches.
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Acculturation↗
[The problem of definitions in the field of mental health. Definitions applicable to epidemiologic studies].
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Chile↗