lysozyme is a bactericidal enzyme whose structure and functions change in diabetes. chemical chaperones are small molecules including polyamines (e.g. spermine), amino acids (e.g. l-lysine) and polyols (e.g. glycerol). they can improve protein conformation in several stressful conditions such as glycation. in this study, the authors aimed to observe the effect of l-lysine as a chemical chaperon...

effect of dietary free l-lysine on growth, food intake, and muscle composition of beluga juveniles were investigated over 6 weeks. control diet lysine content was 2.1% of dry matter (4.4% of dietary protein). three experimental diets were prepared by adding lysine (0.5, 1 and 1.5%) to control diet to obtain diets containing 2.6, 3.1 and 3.6% of dry matter lysine (corresponding to 5.5, 6.6 and 7...

α-Poly(L-lysine) (α-PLL) is a water-soluble cationic biopolymer containing the monomeric unit α-L-lysine, which not only possesses excellent intrinsic properties but also can be modified via facile reactions between side amine groups and many other functional moieties. Ring-opening polymerization (ROP) most prevalently used technique for synthesis of PLL-based polypeptides, involves initial con...

Forward osmosis (FO) has received considerable interest for water and energy-related applications in recent years. However, FO not been commercialized yet because of a few reasons. The lack high-performance membrane is one the important barriers. To overcome this issue, novel thin-film composite (TFC) was successfully fabricated via interfacial polymerization with poly-L-lysine incorporated pol...

Fe(II)/?-ketoglutarate-dependent dioxygenases (KDOs) catalyze a broad range of selective C–H oxidation reactions. However, the difficult production KDOs in recombinant E. coli strains and their instability purified form have so far limited application preparative biotransformations. Here, we investigated immobilization three (CaKDO, CpKDO, FjKDO) that stereoselective hydroxylation L-lysine side...

this study surveys on the effects of l-lysine and methionon amino acids on growth performance, survival rate and body composition of rainbow trout (oncorhynchus mykiss). fish with initial average weight 105.23 +  6.33 g in 5 treatments fed with different levels of lysine (1 and 3 %) and methionine ( 1 and 2%) for 8 weeks. the results showed that the treatment which fed 2 % methionine had the be...

A pig growth assay was conducted to determine the relative biological value (RBV) of lysine from L-lysine sulfate compared with feed-grade L-lysine HCl. One hundred nursery pigs with an average initial BW of 9.5 +/- 1.5 kg were blocked by BW and gender and allotted randomly to five dietary treatments in five replicates of four pigs per pen. A corn-peanut meal diet containing 0.6% total lysine (...

Freely occurring alpha-l-aspartyl-l-histidine, beta-alanyl-l-histidine (carnosine), alpha-l-aspartyl-alpha-l-lysine, l-asparaginyl-alpha-l-lysine, alpha-l-glutamyl-alpha-l-lysine, l-isoleucyl-alpha-l-lysine, l-seryl-alpha-l-lysine, l-valyl-alpha-l-lysine and glycyl-alpha-l-lysyl-alpha-l-lysine were identified in young larvae (second and third instars) of the blowfly (Phormia regina).