Results 1 to 10 of about 52,600 (247)

Stereoselective synthesis of allo-threonine and β-2H-allo-threonine from threonine

open access: yesTetrahedron Letters, 1993
Both D- and L-allo-threonine can be synthesized in good yield from D- and L-threonine respectively, by protection of the amine with Fmoc and the carboxyl with a cyclic ortho ester, followed by oxidation of the side chain to a ketone, and diastereoselective reduction to the allo isomer. Deprotection gives the amino acids in 40% overall yield.
Blaskovich, MA, Lajoie, GA
openaire   +5 more sources

Exogenous Threonine-Induced Conversion of Threonine-Xylose Amadori Compound to Heyns Compound for Efficiently Promoting the Formation of Pyrazines

open access: yesJournal of Agricultural and Food Chemistry, 2023
The involvement of exogenous threonine during the degradation of l-threonine-d-xylose Amadori rearrangement product (Thr-ARP) was found to promote the formation of pyrazines. A model including Thr-ARP and 15N-labeled l-threonine was applied to reveal the
Chi-Tang Ho, Khizar Hayat, Heping Cui
exaly   +2 more sources
Some of the next articles are maybe not open access.

Threonine Aldolases

2014
Threonine aldolases catalyze the pyridoxal phosphate-dependent condensation between small amino acids (principally glycine) and aldehydes such as acetaldehyde. Carbon-carbon bond formation involves forming two adjacent chiral centers. As a rule, threonine aldolases are very stereoselective for α-carbon configuration but show modest selectivity at the β-
Sarah E, Franz, Jon D, Stewart
openaire   +2 more sources

Threonine Metabolism in Vivo: Effect of Threonine Intake and Prior Induction of Threonine Dehydratase in Rats

The Journal of Nutrition, 1978
The metabolic fate of threonine was investigated in young male rats fed 15% amino acid diets containing from 0.15% to 0.85% of L-threonine. Liver serine-threonine dehydratase (S-TDH) activity did not increase with increasing dietary threonine content.
Y A, Kang-Lee, A E, Harper
openaire   +2 more sources

Threonine Metabolism of Chicks Fed Threonine-Imbalanced Diets

The Journal of Nutrition, 1982
Experiments were conducted to determine the metabolic fate of threonine in chicks fed threonine-imbalanced diets. Threonine imbalance was produced by the addition of 3% serine to a threonine-limited diet, and prevented by the addition of 0.2% threonine to the diet.
A T, Davis, R E, Austic
openaire   +2 more sources

The Threonine Story

2002
L-Threonine is an essential amino acid which has recently been brought into agricultural industry for balancing the livestock feed. L-Threonine is produced by microbial synthesis using glucose or sucrose as substrates. For the process to be cost-effective, the microbial strain must be capable of threonine overproduction.
openaire   +2 more sources

Umbilical Threonine Uptake during Maternal Threonine Infusion in Sheep

Placenta, 2003
The infusion into the maternal circulation of amino acid solutions failed to increase umbilical threonine (THR) uptake above normal even when THR was present in the infusate at a relatively high concentration. The purpose of the present study was to determine whether umbilical THR uptake can be increased by infusing a THR solution that does not contain
C L, Paolini   +5 more
openaire   +2 more sources

Quantitative partition of threonine oxidation in pigs: effect of dietary threonine

American Journal of Physiology-Endocrinology and Metabolism, 1990
Kinetic aspects of threonine (Thr) metabolism were examined in eight pigs fed hourly with a diet containing either 0.68% (LT group) or 0.81% (HT group) of Thr (wt/wt), corresponding to 10 and 30% Thr excess, respectively, compared with an "ideal" diet.
O, Ballevre   +6 more
openaire   +2 more sources

Comments on the growth of ‘L-threonine phthalate’, ‘L-threonine phosphate’, ‘L-threonine formate’ and ‘L-threonine diformate’ crystals

Optik, 2016
Abstract It is proved that the recently reported ‘ L -threonine phthalate’ (Theras et al. Optik. 127 (2016) 3397-3401) ‘ L -threonine phosphate’ (Chinnappan et al., Optik 126 (2015) 5517–5521) ‘ L -threonine formate’ (Hanumantharao and Kalainathan, Optik 124 (2013) 2204–2209) and ‘ L -threonine diformate’ (Viju et al., Optik 125 (2014) 5926–5928) are
openaire   +1 more source

ChemInform Abstract: Stereoselective Synthesis of allo‐Threonine and β‐2H‐allo‐ Threonine from Threonine.

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M. A. BLASKOVICH, G. A. LAJOIE
openaire   +1 more source

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