homocystine


Also found in: Dictionary, Encyclopedia.
Related to homocystine: C reactive protein, Methylmalonic acid, homocysteine test

homocystine

 [ho″mo-sis´tēn]
a homologue of cystine that results from demethylation of methionine.

ho·mo·cys·tine

(hō'mō-sis'tēn), Distinguish this word in spelling and pronunciation from homocysteine.
A disulfide, its formation results resulting from the mild oxidation of homocysteine; an analogue of cystine.

homocystine

/ho·mo·cys·tine/ (-sis´tēn) a homologue of cystine formed from two molecules of homocysteine; it is a source of sulfur in the body.

homocystine

[-sis′tin]
a disulfide analog of homocysteine produced by the oxidation of homocysteine. See also homocysteine.

ho·mo·cys·tine

(hō'mō-sis'tēn)
The disulfide resulting from the mild oxidation of homocysteine; an analogue of cystine.

homocystine

a homolog of cystine which results from demethylation of methionine.
References in periodicals archive ?
Homocysteine can react with molecular oxygen, generating homocystine and reactive oxygen species.
However, under the conditions of reduced or total loss of activity of homocystine metabolizing enzyme due to mutation in corresponding gene, this metabolic balance is disturbed resulting into hyperhomocystenimia.
We have also reported (17) selective and highly sensitive HRS assay for mercury (II) recognition in 5 ppb level in aqueous solution using gold nanopartilces modified with mercaptopropionic acid, homocystine and 2,6-pyridinedicarboxylic acid.
Homocysteine and homocystine, in large quantities, may be harmful.
Upon further review, what Ravech's doctors eventually found out was the buildup in his system of an amino acid called homocystine.
The most recent association has been with the concentration of an amino acid called homocystine in the blood.
Levels of cystine and methionine in the plasma are low and homocystine high.
Homocysteine is detected in amino acid profiles as its oxidized homodimer, homocystine.
For cystine and homocystine, quantitative, see 82131, 82136, 82139)
The pathways were altered by feeding either methionine or homocystine (H-H) in conjunction with either folic acid (FA) or choline deficiency.
The patient's plasma homocystine concentration was 48 jwmol/L (reference interval, <2 [micro]mol/L), and her urine homocystine concentration was also markedly increased.