(n.) = affair ; issue ; matter ; topic ; subject matter ; business [businesses, -pl.] ; question ; concern ; subject line ; subject. Ex: And also until Groome appeared, newcomers were a nullity as an active political force, exerting little influence in city affairs.
Like all other proteins, enzymes are made of amino acids. Each enzyme is made of between a hundred and upwards of a million amino acids placed like pearls on a string. Each amino acid is bonded to the next by chemical bonds.The vast majority of enzymes are made of only 20 different kinds of amino acid.nzymes break down your food. Enzymes are the workhorses of the body. When you eat, enzymes break down the food into tiny particles which can be converted into energy in the body. The process starts in the mouth, where an enzyme called amylase attacks all incoming food particles.
Structure of the Month: Beta-lactamase Enzyme Structures. Beta-lactamases are enzymes produced by some Gram-negative and Gram-positive bacteria and are responsible for resistance to a broad class of-beta-lactam antibiotics, including penicillin.There are several groups and classes of beta-lactamases that result in antibiotic resistance.For example, several class C beta-lactamases result in cephalosporin resistance and some class A beta-lactamases confer resistance to oxyimino-cephalosporins, cephamycins and carbapenems.Two different beta â lactamase structures have recently been determined by the Center for Structural Genomics of Infectious Diseases.or example, several class C beta-lactamases result in cephalosporin resistance and some class A beta-lactamases confer resistance to oxyimino-cephalosporins, cephamycins and carbapenems. Two different beta â lactamase structures have recently been determined by the Center for Structural Genomics of Infectious Diseases.