cystine

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Related to L-cystine: L-Glutamic Acid

cys·tine

 (sĭs′tēn′)
n.
A white crystalline amino acid, C6H12N2O4S2, that is formed from the disulfide linkage of two cysteines during the folding of many proteins, especially keratin, and stabilizes the tertiary structure of the protein.

[From its discovery in bladder stones.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cystine

(ˈsɪstiːn; -tɪn)
n
(Biochemistry) a sulphur-containing amino acid present in proteins: yields two molecules of cysteine on reduction. Formula: HOOCCH(NH2)CH2SSCH2CH(NH2)COOH
[C19: see cysto- (bladder), -ine2; named from its being discovered in a type of urinary calculus]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cys•tine

(ˈsɪs tin, -tɪn)

n.
a crystalline amino acid, C6H12O4N2S2, occurring in most proteins, esp. the keratins.
[1835–45; < Greek kýst(is) bladder, cyst + -ine2; so called because found in the bladder]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cystine - a crystalline amino acid found in proteins (especially keratin); discovered in bladder stones
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
Cystin
cystyna

cys·tine

n. cistina, aminoácido producido durante la digestión de las proteínas, presente a veces en la orina.
English-Spanish Medical Dictionary © Farlex 2012

cystine

n cistina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
The test group received 280 milligrams of L-theanine and 700 milligrams of L-cystine once a day for 14 days.
Other studies demonstrate the efficacy of oral minerals (i.e., zinc and iron) [5-9], B-vitamins [7, 10, 11], and L-cystine [7, 12] on hairs and nails.
Due to the fastidious nutritional requirements, the organism grow either in the media enriched with pyridoxin and L-cystine, or in the absence of supplements, a streak of Staphylococcus aureus or Staphylococcus epidermidis provides suitable culture conditions, where these species grow as satellite colonies adjacent to the helper Staphylococcus species.
They contain vitamins, micronutrients, L-cystine, paprika extract and a cereal mix to provide hair with building blocks for growth while nourishing it to be thick and strong.
Gastrointestinal side effects are a frequent clinical finding following supplementation with L-cystine, a sulphur amino acid.
To determine the effect of nitrogen sources on vegetative growth of isolate ZZS4408 the D-alanine of BM medium was substituted with equal amounts of glycine carbamide L-cystine L-histidine sodium nitrate and ammonium dihydrogen phosphate respectively.
Co-developed with Ginza San Espero Omori Clinic and La Belle Vie, Inc., the new lychee-flavored beverage contains chelate compounds such as L-cystine, malic acid, methylsulfonylmethane and phytic acid, discharging poisonous metals from the body.
The diets included a methionine and cystine-deficient basal diet with all other essential nutrients meeting nutrient requirements and six diets formulated with graded levels of DL-methionine (0.00, 0.03, 0.06, 0.10, 0.13, 0.16%) and L-Cystine x HCl x [H.sub.2]O (0.19, 0.15, 0.11, 0.07, 0.04, 0.00%).
Tetrabutylatiitnonium hydrogen sulfate, NaB[H.sub.4], D,L-homocysteine, L-cysteine, L-cystine, dextran T500, 1-octanol, N-ethylmorpholine, dithioerythritol, and NEM were obtained from Sigma Chemical.
The present study was performed to investigate the effects of oral administration of L-cystine and/or L-theanine on GSH levels and immune responses.