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Lysozyme (EC 3.2.1.17, muramidase, N-acetylmuramide glycanhydrolase; systematic name peptidoglycan N-acetylmuramoylhydrolase) is an antimicrobial enzyme produced by animals that forms part of the innate immune system. It is a glycoside hydrolase that catalyzes the following process:
The word lysosome (/ ˈ l aɪ s oʊ s oʊ m /, / ˈ l aɪ z ə z oʊ m /) is Neo-Latin that uses the combining forms lyso-(referring to lysis and derived from the Latin lysis, meaning "to loosen", via Ancient Greek λύσις [lúsis]), and -some, from soma, "body", yielding "body that lyses" or "lytic body".
Organisation of enzyme structure and lysozyme example. Binding sites in blue, catalytic site in red and peptidoglycan substrate in black. (In biology and biochemistry, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
In the gut they are found as glycosylphosphatidyl anchored enzymes on endothelial cells. The enzyme lactase is required for degradation of the milk sugar lactose and is present at high levels in infants, but in most populations will decrease after weaning or during infancy, potentially leading to lactose intolerance in adulthood.
Many cofactors are vitamins, and their role as vitamins is directly linked to their use in the catalysis of biological process within metabolism. Catalysis of biochemical reactions in the cell is vital since many but not all metabolically essential reactions have very low rates when uncatalysed. One driver of protein evolution is the ...
A new study is illuminating how “forever chemicals” can alter our brain cells by impairing the genes that maintain healthy neurons, the cells of our nervous system.
The prototypical holin is the lambda phage S protein, which assists the lambda phage R protein (lysin). All holins embed themselves in the cell membrane and contain at least two transmembrane helical domains. The hole making process is thought to be achieved by holin oligomerization at a specific moment when progeny virions are set to be released.
Bettina Anderson is reportedly dating Donald Trump Jr. Anderson, a socialite, model, and influencer, comes from a prominent Palm Beach family. She attended the Republican National Convention in ...