The activated methyl cycle, Biology

S-Adenosyl   methionine   serve  as  a  donor  of  methyl  sets  in  numerous biological  reactions instance for in the formation  of creatine phosphate and in the synthesis of nucleic acids. It is formed by the action of the activated methyl cycle. In during donation of its methyl group to another compound, S-adenosyl methionine is altered into S-adenosyl homocysteine.  To reproduce S-adenosyl   methionine,   the adenosyl   group   is deleted   from the S- adenosyl  homocysteine  to form  homocysteine.  This is then methylated by the enzyme   homocysteine    methyltransferase,   only   two   vitamin   B12- holding enzymes found in eukaryotes, to form methionine. The concluded methionine is then activated to S-adenosyl methionine with the release of all three of the phosphates from ATP.

497_22.png

Posted Date: 4/12/2013 4:07:21 AM | Location : United States







Related Discussions:- The activated methyl cycle, Assignment Help, Ask Question on The activated methyl cycle, Get Answer, Expert's Help, The activated methyl cycle Discussions

Write discussion on The activated methyl cycle
Your posts are moderated
Related Questions
Explain about the Diabetes mellitus? You are aware that diabetes may be diagnosed as an exaggerated response in blood glucose concentration following ingestion of a fixed amou

Vaccinia-like disease Smallpox caused by variola virus (VARV) has successfully been eradicated in the last quarter of the 20th century. However, vaccinia like viruses (VLVs) , viz.



What are the steps of mitosis in order?

Explain Ventricular Septal Defect in details ? Indications of surgery :  Some VSDs close spontaneously or become smaller in size. This has to be taken into consideratio

Define Proteins as Structural Elements and Structural Units? The liver cell membrane analysis shows that this membrane contains 50-60% protein, 35% lipids and 5% carbohydrates.

According to the Nernst equation, the equilibrium potential for any ion (Eion) distributed across a membrane is dependent on the internal (Ionin) and external (Ionout) concentratio

Kidney - 2 in number. Dark red. Slightly flattened. Bean shaped. 10 cm. long, 5 cm wide and 4 cm thick (In rabbit 20-25 mm). Weighing 150 gm in male 135 gm in fema

Where in the cell can ribosomes be found? What is the main biological function of ribosomes? Ans) Ribosomes can be found free in the cytoplasm, adhered to the outer side of the