amino acid n (Biochemistry) any of a group of organic compounds containing one or more amino groups, -NH2, and one or more carboxyl groups, -COOH. The alpha-amino acids RCH(NH2)COOH (where R is either hydrogen or an organic group) are the component molecules of proteins; some can be ...
Trypsin and chymotrypsin are endopeptidases; that is, they cleave internal peptide bonds. The so-called peptidases are exopeptidases; they cleave terminal peptide bonds. Trypsin has a predilection for those containing the basic amino acid residues of lysine and arginine. These two proteinases perform...
3 Lysine is an essential amino acid that cannot be synthesised by the human body and must be obtained from the diet. It is found in legumes such as peas, and animal products such as beef and fish.The structure of lysine is given below.H2N.1OH NH2lysine(a) A solution was prepared by...
In shotgun proteomics, proteins are digested into peptides by sequence-specific proteases (such as trypsin, which cleaves proteins at the carboxy-terminal side of lysine and arginine residues). Lipopolysaccharide (LPS). A structural component of the outer membrane of Gram-negative bacteria. LPS may...
A minimal 34-amino-acid region of SSX is necessary and sufficient for direct binding to repressive nucleosomes and SS18-SSX-mediated oncogenic functions We next sought to determine whether the 78 residues of SSX in isolation (not fused to the SS18 subunit and hence not part of BAF complexes...
Which amino acid(s) would be found at the core of a folded protein most likely? a. Lys. b. Leu. c. Arg. d. Thr. e. Tyr. f. Val. g. Asp. h. His. Protein Tertiary Structure: The tertiary structure of a protei...
some non-proteinogenic amino acids have antiherbivory, antimicrobial and allelochemical activity (Bell2003). Among these amino acids, α-aminoadipic acid (Aaa) is an intermediate product in lysine (Lys) synthesis in yeast and fungi (Bhattacharjee1985). Interestingly, Aaa pathway is used to cataboli...
Enzyme assays confirmed the N-acetylglutamate synthase activity of Cg3035 in vitro. However, the amino acid sequence of Cg3035 revealed no similarities to members of known NAGS gene families. Conclusions The N-acetylglutamate synthase Cg3035 is able to catalyse the first step of arginine ...
The main protease of SARS-CoV-2 (Mpro) is an important target for developing COVID-19 therapeutics. Recent work has highlighted Mpro’s susceptibility to undergo redox-associated conformational changes in response to cellular and immune-system-induced ox
Storage and directed transfer of information is the key requirement for the development of life. Yet any information stored on our genes is useless without its correct interpretation. The genetic code defines the rule set to decode this information. Amin