What is N-Ethylmaleimide used for?
N-Ethylmaleimide (NEM) is an organic compound that is derived from maleic acid. It contains the amide functional group, but more importantly it is an alkene that is reactive toward thiols and is commonly used to modify cysteine residues in proteins and peptides.
How do you prepare n-Ethylmaleimide?
Prepare 100-200mM of NEM in ultrapure water. Add a minimum of a 10-fold molar excess of NEM to sulfhydryl groups to be blocked. Alternatively, add an equal mass amount of NEM to the protein (e.g., add 2mg of NEM to 1mL of 2mg/mL protein).
How do you dissolve N-Ethylmaleimide?
NEM gives a clear solution in ethanol at 50 mg/ml. NEM dissolves in water (>50 mg in 4 ml); however, aqueous solutions are unstable.
What is nem used for?
NEM offers a seamless ability to interface between public and private blockchains. It enables easy transfer of any digital asset—like tokens, contracts, or files—from a privately held internal enterprise network, routed via a public blockchain, and finally to another business’s private network.
How do you make a NEM solution?
1. Prepare the NEM stock solution of 10 mg/mL in water, and add equal amount of NEM to the cell lysate (1:1, w/w). Incubate the mixture at 37°C for 1 h.
Is XEM good crypto?
It is nothing but the trust of investors that has made an upward surge in the price of XEM compared to other coins like Ethereum and Bitcoin. Proving its merit against competitors, NEM has withstood the test of time and is worth investor’s hard-earned money, as shown in the data.
Is NEM same as XEM?
NEM, which stands for the New Economy Movement, is a technology platform intended to be used to manage assets and data easily and inexpensively. NEM has its own currency, called XEM, which is traded by holders of cryptocurrency, but not used as a means of payment.
Why are sulfhydryl groups important to proteins?
Sulfhydryls play an important role in biochemistry, as disulfide bonds connect necessary amino acids together for functional purpose in secondary, tertiary, or quaternary proteins structures.
Is NEM cell permeable?
NEM is membrane-permeable and alkylates the thiol group of a Cys residue of protein in a water-dependent reaction (23⇓–25), enabling us to assess the water availability of a specific site of the target protein in intact cells by strategically placing a Cys residue.
