Side reactions in the synthesis of peptides containing the aspartyglycyl sequence.
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Aspartic Acid↗
Biomedical subjects
J Pluscec
Publications and source records attributed to J Pluscec.
delta-Aminolevulinic Acid Transaminase in Chlorella vulgaris.
An enzyme catalyzing the formation of delta-aminolevulinic acid by transamination of gamma,delta-dioxovaleric acid with l-alpha-alanine, l-glutamic acid, or l-phenylalanine has been detected in extracts of Chlorella vulgaris. The activity of this enzyme does not appear to parallel changes in chlorophyll content in a Chlorella mutant which requires light for chlorophyll production. The role of this enzyme in delta-aminolevulinic acid metabolism in plants is not clearly understood.
Journal Article↗
The occurrence of trivalent chromium in the aqueous and lens of rats.
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Animals↗
Determination of vitamin D3 in liquid multivitamin preparation, using reverse phase, solid phase extraction liquid chromatography.
A method is described for the determination of vitamin D3 in a liquid multivitamin preparation by liquid chromatography. Samples are purified on a disposable reverse phase extraction (SPE) column with a mobile phase of methanol-2-propanol (97 + 3) and are analyzed on a Zorbax ODS (5 micron) column with an acetonitrile-2-propanol-water (90 + 8 + 2) solvent system. Vitamin D3 is completely resolved from other interfering compounds within approximately 21 min and is detected with a UV detector at 254 nm. A mean of 98.5% of theory with a coefficient of variation of 3.8% was found for determination of vitamin D3 in a commercial preparation.
Cholecalciferol↗