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Serine (symbol Ser or S) [3] [4] is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated − NH +3 form under biological conditions), a carboxyl group (which is in the deprotonated − COO −
Phosphatidylserine (abbreviated Ptd-L-Ser or PS) is a phospholipid and is a component of the cell membrane. [1] It plays a key role in cell cycle signaling, specifically in relation to apoptosis . It is a key pathway for viruses to enter cells via apoptotic mimicry . [ 2 ]
A few D-amino acids ("right-handed") have been found in nature, e.g., in bacterial envelopes, as a neuromodulator (D-serine), and in some antibiotics. [ 27 ] [ 28 ] Rarely, D -amino acid residues are found in proteins, and are converted from the L -amino acid as a post-translational modification .
She adds that boneless, skinless thighs have a little less — around 19 grams of protein per 100-gram serving. Put another way, "A three-ounce serving of cooked chicken breast has around 26 grams ...
Significant levels of Amadori-phosphatidylethanolamine products have been found in a wide variety of foods such as chocolate, soybean milk, infant formula, and other processed foods. The levels of Amadori-phosphatidylethanolamine products are higher in foods with high lipid and sugar concentrations that have high temperatures in processing. [13]
Serine: S Ser Serine and threonine have a short group ended with a hydroxyl group. Its hydrogen is easy to remove, so serine and threonine often act as hydrogen donors in enzymes. Both are very hydrophilic, so the outer regions of soluble proteins tend to be rich with them. Threonine: T Thr Essential for humans, Thr behaves similarly to serine.
In spite of its name, nattokinase is not a kinase enzyme (and should not be pronounced as such), but a serine protease of the subtilisin family (99.5% identical with aprE). Rather, it is named for the fact that it is an enzyme produced by nattōkin (Japanese: 納豆 菌)(納豆 菌), the Japanese name for Bacillus subtilis var natto.
7. Soy Can Affect Fertility in Men. Soy has come a long way. Once dismissed as “hippie food,” today it’s a popular protein alternative for vegetarians and vegans.