[dimethylether]

hello all

I am new here and I hope you can help me out. I tried to do some Googling but I can't find the answer to this.

The difference between iso-pentane and neo-pentane is in the arrangement of the atoms, they are both 5 carbon atom, with different structure.

1.But why is endorphin so different from neo-endorphin? The former has about 3x the number of carbon atoms as neo-endorphin?

2. What's the the practical function of endorphin and neo-endorphin? Which is the one that makes us happy?

3. And in terms of practical purpose, which is the more important one, alpha or beta endorphin?

Thanks!

[Babcock_Hall]

I went to PubMed and used "endorphin" as my search term and chose "review."  There were over 3,000 hits which is obviously a great deal of information.  I only received six hits with neoendorphin as the search term.
http://www.ncbi.nlm.nih.gov/pubmed/?term=neoendorphin

It may be that different types of proteolytic cleavages of a single parent polypeptide produce some of the differences in products, but I have not had time to follow up on this.