منابع مشابه
l-Alanine hydrochloride monohydrate
Colorless crystals of l-alanine hydrochloride monohydrate, C(3)H(8)NO(2) (+)·Cl(-)·H(2)O, were obtained from a powder sample that had been left standing in a refrigerator for a few years. The structure displays several inter-molecular hydrogen bonds: the hydroxyl O atom is involved in a single hydrogen bond to the chloride anion, while the ammonium group forms one hydrogen bond to the chloride ...
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From the Book of Mammography by Dr. Zabihollah Arnavaz - Head of Radiology Department of Jorjani Hospital of National University of Iran.
متن کاملCatalytic Stereoinversion of L-Alanine to Deuterated D-Alanine.
A combination of an achiral pyridoxal analogue and a chiral base has been developed for catalytic deuteration of L-alanine with inversion of stereochemistry to give deuterated D-alanine under mild conditions (neutral pD and 25 °C) without the use of any protecting groups. This system can also be used for catalytic deuteration of D-alanine with retention of stereochemistry to give deuterated D-a...
متن کاملAffinity labeling of alanine aminotransferase by 3-chloro-L-alanine.
The pyridoxal form of alanine aminotransferase from pig heart catalyzes the a,/? elimination reaction with 3chloro-L-alanine as the substrate to form equimolar amounts of pyruvate, ammonia, and chloride. The maximum rate of the a,/3 elimination reaction was 2.5 pmol/min/mg at pH 7.0 (25”(Z), approximately 0.5% that of the transamination reaction between L-alanine and 2-oxoglutarate. Time-depend...
متن کاملEffects of L-alanine and L-alanine peptides on the chemotaxis of tetrahymena: evolutionary conclusions.
L-alanine and its peptides (L-Ala-2-6) do not attract or repulse Tetrahymena in a 10(-8) M concentration. In 10(-10) M concentration there is a consistent repellent effect. Twenty four hours after L-alanine or L-alanine-peptides' pretreatment (imprinting) the progeny generation of the cells react differently to the same materials. L-Alanine, L-alanine penta- and hexapeptide in both concentratio...
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ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1960
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.34.10_838