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Early cloning experiments may be conducted using natural plasmids such the ColE1 and pSC101.Each of these plasmids may have its advantages and disadvantages. For example, the ColE1 plasmid and its derivatives have the advantage of higher copy number and allow for chloramphenicol amplification of plasmid to produce a high yield of plasmid, however screening for immunity to colicin E1 is not ...
Function: Amylase is an enzyme that is responsible for the breaking of the bonds in starches, polysaccharides, and complex carbohydrates to be turned into simple sugars that will be easier to absorb. Clinical Significance: Amylase also has medical history in the use of Pancreatic Enzyme Replacement Therapy (PERT). One of the components is ...
The active site of CYP2E1 is the smallest observed in human P450 enzymes, with its small capacity attributed in part to the introduction of an isoleucine at position 115. The side-chain of this residue protrudes out above the heme center, restricting active site volume compared to related enzymes that have less bulky residues at this position. [14]
Enzyme denaturation is normally linked to temperatures above a species' normal level; as a result, enzymes from bacteria living in volcanic environments such as hot springs are prized by industrial users for their ability to function at high temperatures, allowing enzyme-catalysed reactions to be operated at a very high rate.
Cyclooxygenase 1 (COX-1), also known as prostaglandin-endoperoxide synthase 1 (HUGO PTGS1), is an enzyme that in humans is encoded by the PTGS1 gene. [ 5 ] [ 6 ] In humans it is one of three cyclooxygenases .
5′-Nucleotidase (EC 3.1.3.5) is an enzyme which catalyzes the phosphorylytic cleavage of 5′-nucleotides. [2] Although originally found in snake venom, [3] the activity of 5'nucleotidase has been described for bacteria and plant cells, and is widely distributed in vertebrate tissue. [4]
In enzymology, a malate oxidase (EC 1.1.3.3) is an enzyme that catalyzes the chemical reaction (S)-malate + O 2 oxaloacetate + H 2 O 2. Thus, the two substrates of this enzyme are (S)-malate and O 2, whereas its two products are oxaloacetate and H 2 O 2.