{"id":622,"date":"2018-12-18T10:41:43","date_gmt":"2018-12-18T10:41:43","guid":{"rendered":"https:\/\/www.healthbenefitstimes.com\/nutrition\/?p=622"},"modified":"2019-03-14T05:47:46","modified_gmt":"2019-03-14T05:47:46","slug":"selenocysteine","status":"publish","type":"post","link":"https:\/\/www.healthbenefitstimes.com\/nutrition\/selenocysteine\/","title":{"rendered":"Facts and Food Sources of Selenocysteine"},"content":{"rendered":"

\"\"Selenocysteine is a biological active form of element present in selenoproteins. The selenol is largely ionized at physiologic pH and is considered to be a strong nucleophile in comparison to thiol of cysteine<\/a>. \u00a0The chemical properties provide catalytic function in selenoenzymes. It contains selenium<\/a> obligated covalently to two carbon atoms. The selenium is armored and not chemically active as selenium in selenocysteine. It is distributed non-specifically in methionine<\/a> pool. Selenocysteine is integrated into peptide backbone of selenoproteins containing selenium in form of selenol and referred as twenty first amino acid. Selenocysteine has standard amino acid symbols such as Sec (three letters) or U (one letter). Selenocysteine is found in various enzymes such as glutathione peroxidases, thioredoxin reductases, tetraiodothyronine 5′ deiodinases, glycine reductases, formate dehydrogenases, methionine-R-sulfoxide reductase B1 (SEPX1), selenophosphate synthetase 2, and some hydrogenases. Proteins<\/a> with more than one selenocysteine residues are known as selenoprotein.<\/p>\n

Selenocysteine Food Sources<\/strong><\/p>\n

Food sources of selenocysteine are:<\/p>\n

Animal sources: <\/strong>Meat, chicken<\/a>, poultry, egg<\/a>, fish, seafood, cheese<\/a> and turkey<\/a>.<\/p>\n

Plant sources: <\/strong>Wheat<\/a>, corn<\/a>, oats<\/a>, rice<\/a>, nuts such as Brazil nuts<\/a> and soybeans<\/a>.<\/p>\n