Structure of Growth Hormones
Anti aging, HGH products, HGH: Human Growth Hormone, HgH, News
Growth hormone (GH) is a hormone responsible for stimulation of growth and cell reproduction in humans and other animals. It is a 191-amino acid, single chain polypeptide hormone which is synthesized, stored, and secreted by the somatotroph cells. These cells are located within the lateral wings of the anterior pituitary gland. The major isoform of the human growth hormone is a covalent bound peptide [protein] of 191 amino acids and has a molecular weight of about 22,000 daltons.
Somatotrophin is the term used for the growth hormone produced natively in animals. This growth hormone is made up of four helices containing 21-30 amino acids each. The structure of somatotropin has an anti-parallel up-up-down-down arrangement of the helices.
GH is structurally and apparently evolutionarily homologous to prolactin and chorionic somatomammotropin. Although the growth hormones from different species have marked structural similarities, only human and primate growth hormones are found to be effective in humans.
A significantly large structure, HGH (human growth hormone) is a fragile structure, easily compromised by enzyme or Ph fluctuations. Several molecular isoforms of GH circulate in the plasma, much of which is bound to a protein (growth hormone binding protein, GHBP) which is derived from the growth hormone receptor, and an acid label sub unit (ALS).
Popularity: 1% [?]
 |
   |