leucine


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Related to leucine: glutamine

leucine

 [loo´sēn]
a naturally occurring amino acid, one of the essential amino acids, necessary for growth in infants and for nitrogen equilibrium in adults.

leu·cine (Leu, L),

(lū'sēn),
2-Amino-4-methylvaleric acid; the l-isomer is one of the amino acids found in proteins; a nutritionally essential amino acid.

leucine

(lo͞o′sēn′)
n.
An essential amino acid, C6H13NO2, obtained by the hydrolysis of protein by pancreatic enzymes during digestion and necessary for optimal growth in children and for the maintenance of nitrogen balance in adults.

leu·cine

(lū'sīn)
The l-isomer is one of the amino acids of proteins; a nutritionally essential amino acid.

leucine

One of the essential AMINO ACIDS.
Leucineclick for a larger image
Fig. 209 Leucine . Molecular structure.

leucine (L, Leu)

one of 20 amino acids common in proteins. It has a NONPOLAR ‘R’ structure and is relatively insoluble in water. See Fig. 209 . The ISOELECTRIC POINT of leucine is 6.0.

leu·cine

(lū'sīn)
The l-isomer is one of the amino acids of proteins; a nutritionally essential amino acid.
References in periodicals archive ?
Through years of persistent efforts, scientists in Creative Biolabs successfully accomplished the mission impossible, being able to unequivocally distinguish the location of leucine and isoleucine, which enables a genuine sense of 100% accuracy in de novo antibody sequencing for superior functional analysis.
The study I am about to review by Chanet et al provides a specific dietary supplemental program that not only includes protein but vitamin D and extra leucine. In this study, 24 healthy men aged 71 [+ or -] 4 years were evaluated.
Compared with leucine, trileucine has a superior surface activity and 3-fold lower water solubility and is noncrystalline after SD.
Major limitations include incomplete information of all common amino acids and inability to separate leucine from isoleucine and other isobaric analytes.
What is more, it could be observed that the grain size of Sn[O.sub.2] is finer in L-Sn[O.sub.2] than that of Sn[O.sub.2] prepared without leucine templates under the same temperature.
Hyperlipidemic and normolipemic patients showed significant differences in alanine, aspartate, glucose, isoleucine, lactate, leucine, succinyl-CoA, and valine concentrations and, among them, isoleucine had the highest discriminant capacity (Figure 2(d)).
Valine, isoleucine and leucine compete for the same enzymes that catalyze the first two catabolic steps in their metabolism [10].
The amino acids in whey include a high proportion of the muscle-building branched-chain amino acids and leucine. When combined with other amino acids, it acts as signalling molecules that initiate the synthesis of new proteins as essential building blocks in the process.
These amino acids include leucine, a veritable fuel for exercising muscles, which is essential for gaining strength and reducing 'fatigability' and post-exercise aches.
The common feature, bZIP domain with length ranging from 60 to 80 amino acids (aa), includes two unique structures, a highly conserved DNA-binding basic and hinge region and a relatively diversified leucine zipper region [3].