Oxidation of methionine

Write a 12 pages paper on oxidation of methionine by singlet oxygen. Its electron arrangement is different from abundant normal diradical triplet oxygen. Singlet oxygen can be formed from triplet oxygen with the assist of photosensitizers, like Rose Bengal. Such compounds use light to convert triplet into singlet oxygen. Due to low activation energy and its electron configuration singlet oxygen is a highly reactive molecule and can readily form bonds with a number of organic molecules. It is less stable than the normal form of oxygen. However, depending on the environment singlet oxygen has the possibility to exist for more than one hour at room temperature. (Schweitzer, et al., 2003) One of the reactions that singlet oxygen can take part in, is the oxidation of amino acid residues of proteins. Cysteine and methionine residues are particularly susceptible to such forms of oxidation. In contrast to oxidation of other amino acids, this type of oxidation is reversible. Both R- and S-stereoisomers of methionine sulfoxide form as a consequence of methionine residue oxidation. The reaction can be reversed with the aid of stereospecific methionine sulfoxide reductases which can be found in most cells. The enzyme catalyses the formation of methionine residues from methionine sulfoxide (Carey, et al., 1984).

We help you get better grades, improve your productivity and get more fun out of college!!

How it works – it’s easy

Y

Place your Order

Submit your requirements through our small easy order form. Be sure to include and attach any relevant materials.

Make a payment

The total price of your order is based on number of pages, academic level and deadline.

i

Writing process

We assign the assignment to the most qualified tutor. When the tutor completes the assignment, it is transferred to one of our professional editors to make sure that the assignment meets all of your requirements.

Once complete, we’ll send your assignment via the email provided on the order form.

 

 

Achieve academic success with the best online tutors.