L-selenocysteine
Also known as 3-selenyl-L-alanine, selenocysteine, 3-selanyl-2-aminopropanoic acid, selenium cysteine, Sec
thumb|Selenocysteine ball and stick model spinning Selenocysteine (symbol Sec or U, in older publications also as Se-Cys) is the 21st proteinogenic amino acid. Selenoproteins contain selenocysteine residues. Selenocysteine is an analogue of the more common cysteine with selenium in place of the sulfur.
Research
3,544 papersvia PubMed
Article
13 sectionsContents
- Chemistry
- Structure
- Biology
- Production
- Selenoproteins
- Breakdown
- Toxicity
- Derivatives
- Applications
- See also
- References
- Further reading
- External links
thumb|Selenocysteine ball and stick model spinning Selenocysteine (symbol Sec or U, in older publications also as Se-Cys) is the 21st proteinogenic amino acid. Selenoproteins contain selenocysteine residues. Selenocysteine is an analogue of the more common cysteine with selenium in place of the sulfur.
Selenocysteine is present in several enzymes (for example glutathione peroxidases, tetraiodothyronine 5′ deiodinases, thioredoxin reductases, formate dehydrogenases, glycine reductases, selenophosphate synthetase 2, methionine-R-sulfoxide reductase B1 (SEPX1), and some hydrogenases). It occurs in all three domains of life, including important enzymes (listed above) present in humans.