Selenocysteine (symbol Sec or U, in older publications also as Se-Cys) is the 21st proteinogenic amino acid. Selenoproteins contain selenocysteine residues...

(proteinogenic) amino acids, 20 in the standard genetic code and an additional 2 (selenocysteine and pyrrolysine) that can be incorporated by special translation mechanisms...

The enzyme selenocysteine lyase (SCL) (EC 4.4.1.16) catalyzes the chemical reaction L-selenocysteine + reduced acceptor ⇌ {\displaystyle \rightleftharpoons...

In biology, the SECIS element (SECIS: selenocysteine insertion sequence) is an RNA element around 60 nucleotides in length that adopts a stem-loop structure...

as forage, e.g. locoweed. Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient...

acids. Selenocysteine (Sec, U) is a rare amino acid not directly encoded by DNA, but is incorporated into proteins via the ribosome. Selenocysteine has a...

In molecular biology a selenoprotein is any protein that includes a selenocysteine (Sec, U, Se-Cys) amino acid residue. Among functionally characterized...

polyatomic also. For example, the amino acids serine, cysteine, and selenocysteine are all isoelectronic to each other. They differ by which specific chalcogen...

enzymes. This was followed by the discovery of selenocysteine in proteins. During the 1980s, selenocysteine was shown to be encoded by the codon UGA. The...

enzymes contain selenium, in the form of an otherwise rare amino acid selenocysteine. These enzymes are not to be confused with the iodotyrosine deiodinases...

amino acids; but in certain organisms the genetic code can include selenocysteine and—in certain archaea—pyrrolysine. Shortly after or even during synthesis...

Of the twenty-one amino acids common to all life forms (including selenocysteine), dogs cannot synthesize ten: arginine, histidine, isoleucine, leucine...

canonical amino acid selenocysteine (HO2CCH(NH2)CH2SeH). The compound can also be prepared synthetically from serine. Because selenocysteine is not easily isolated...

acid building blocks. Two unusual genetically-encoded amino acids are selenocysteine and pyrrolysine. Pyrrolysine was discovered in 2002 at the active site...

are alanine, aspartic acid, asparagine, glutamic acid, serine, and selenocysteine (considered the 21st amino acid). Pyrrolysine (considered the 22nd amino...

codons to amino acids. In 1986, convincing evidence was provided that selenocysteine (Sec) was incorporated co-translationally. Moreover, the codon partially...

Space Weather Prediction Center, formerly Space Environment Center Selenocysteine, an amino acid Secondary Electron Conduction Tube, part of the Apollo...

Histidine Isoleucine Leucine Lysine Methionine Phenylalanine Proline Selenocysteine Serine Threonine Tryptophan Tyrosine Valine Vitamins Vitamin A Vitamin...

messenger RNA. For example, UGA can code for selenocysteine and UAG can code for pyrrolysine. Selenocysteine came to be seen as the 21st amino acid, and...

cofactor. Each subunit contains a selenocysteine (Sec) residue which is required for catalytic activity. The selenocysteine is encoded by the UGA codon that...

element for selenocysteine, UAG PYLIS downstream sequence for pyrrolysine. All other amino acids are termed "non-proteinogenic". Selenocysteine. This amino...

acids normally present in proteins. (There are two uncommon amino acids—selenocysteine and pyrrolysine—found in a limited number of proteins and encoded by...

the atomic numbers of atoms near the asymmetric carbon, cysteine (and selenocysteine) have R chirality, because of the presence of sulfur (or selenium) as...

methyl selenide are found in human breath after consuming raw garlic. Selenocysteine, called the twenty-first amino acid, is essential for ribosome-directed...

a serine or cysteine amino acid, but occasionally threonine or even selenocysteine. The 3D structure of the enzyme brings together the triad residues in...

catalyze release of iodine directly from the thyronine hormones. They are selenocysteine-dependent membrane proteins with a catalytic domain resembling peroxiredoxins...

Histidine Isoleucine Leucine Lysine Methionine Phenylalanine Proline Selenocysteine Serine Threonine Tryptophan Tyrosine Valine Vitamins Vitamin A Vitamin...

conserved stem-loop structure called the selenocysteine insertion sequence (SECIS) causes for the insertion of selenocysteine instead. The 3′-untranslated region...

Histidine Yes Lysine Yes Asparagine Yes Pyrrolysine Yes Proline Yes Glutamine Yes Arginine Yes Threonine Yes Selenocysteine Yes Tryptophan Yes Tyrosine Yes...

of the protein, in particular if unconventional amino acids such as selenocysteine are incorporated into the protein, which is coded for by a conventional...