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The Collaborative International Dictionary
Alanine

Alanine \Al"a*nine\, n. [Aldehyde + the ending -ine. The -n- is a euphonic insertion.] (Chem.) one of the natural amino acids found combined in the proteins of most living tissues. It can be isolated as a white crystalline base, C3H7NO2. The natural form is the L-configuration.

Wiktionary
alanine

n. 1 (context amino acid uncountable English) A nonessential amino acid ''2-aminopropanoic acid'' found in most animal proteins 2 (context countable English) A specific residue, molecule, or isomer of this amino acid

WordNet
alanine

n. a crystalline amino acid that occurs in many proteins

Wikipedia
Alanine

Alanine (abbreviated as Ala or A; encoded by the codons GCU, GCC, GCA, and GCG) is an α- amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO form under biological conditions), and a side chain methyl group, classifying it as a nonpolar (at physiological pH), aliphatic amino acid. It is non-essential in humans, meaning the body can synthesize it.

The L-isomer ( left-handed) of alanine is one of the 20 amino acids encoded by the human genetic code. L-Alanine is second only to leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. The right-handed form, D-Alanine occurs in bacterial cell walls and in some peptide antibiotics.

Usage examples of "alanine".

Five amino acids were formed- alanine, valine, leucine, glycine, and hydrogen cyanide.

Belmore laughed, and Alanine could feel the color rising in her cheeks.

Somewhere deep inside me, strands of DNA were coding for alanine and tryptophan and other amino acids, building up the proteins of chemical memory for my brain to read.

Since most of the abbreviations consist of the first three letters of the name, they are not difficult to memorize: glycine gly alanine ala valine val leucine leu asparagine asp'Ntb aspartic acid asp glutamine ghrNH2 glutamic acid glu THE HUMAN BRAIN isoleucine proline phenylalanine tyrosine tryptophan serine threonine ileu pro phe tyr try ser thr lysine histidine lys his arginine methionine arg met cystine cysteine cy-S-cy-SH Of the abbreviations that are more than the first three letters of the names, ileu, asp-NH2, and ghrNH2 should be clear.

The 'primitive soup' Miller had cooked up contained asparagine, alanine and glycine—in other words amino acids necessary for the building up of biological systems.

INDEX INDEX Abduc«ns nerve, 207 Accessory nerve, 208 Acetylcholine, 132 autonomic nervous system and, 218 Achromatism, 297 Acoustic area, 177 Acoustic nerve, 208, 265 Acromegaly, 95 ACTH, 82 autonomic nervous system and, 219 Addison, Thomas, 76 Addison's disease, 76 ADH, 63 Adrenal glands, 40 Adrenalin, 41 schizophrenia and, 335 Adrenergic nerves, 218 Adrenochrome, 335 Adrenocorticotrophic hormone, 82 Alanine, 10 Albinos, eyes of, 276, 277 Aldosterone, 80 Allergies, histamine and, 43-44 All-or-none law, 137 Alpha waves, 178 Amine group, 9 Amino acids, 8 abbreviations of, 11, 12 arrangements of, 14, 15, 36 Amino acids, contd.