Transforming growth factor β1 (TGF-β1) is a polypeptide with various biological activities. Recent studies have shown that this and they receptors are expressed in human Leydig cells, Sertoli spermatogonia, spermatocytes sperm cells after birth, involved the endocrine regulation of spermatogenesis. However, there no report on expression TGF-β embryonic testis. TGF-β1 peptide widely distributed ...

Highly purified plague murine toxins A or B dissociate to form single uncommon polypeptide bands and another polypeptide band common to both toxins.

Approximately 23% of the protein isolated from dormant spores of Botryodiplodia theobromae consisted of a single polypeptide; the polypeptide is probably degraded during germination.

The initiation of protein synthesis in reticulocyte lysates is inhibited by low levels (1-50 ng/ml) of doublestranded RNA (dsRNA) due to the activation of a CAMPindependent protein kinase (dsI) which phosphorylates the a-subunit (38,000 daltons) of eukaryotic initiation factor 2 (eIF-2a). In lysates, dsI is present in an inactive precursor form (latent dsI) associated with the ribosomal complem...

Experimental studies have shown that many naturally occurring polyphenols have inhibitory effect on the aggregation of several proteins. Here, we use discrete molecular dynamics (DMD) simulations and high-throughput dynamic light scattering (DLS) experiments to study the anti-aggregation effects of two polyphenols, curcumin and resveratrol, on the aggregation of islet amyloid polypeptide (IAPP ...

OBJECTIVE Leptin and the pancreatic hormones amylin and pancreatic polypeptide are being evaluated alone or in combination for the treatment of obesity, but their physiological regulation has not yet been fully elucidated. Thus, we examined whether amylin and pancreatic polypeptide are regulated by caloric intake and/or short- and long-term energy deprivation and whether any potential regulatio...

PURPOSE Earlier studies from this laboratory demonstrated the ability of lens epithelium to synthesize new Na,K-adenosine triphosphatase (Na,K-ATPase) catalytic subunit (alpha) polypeptide under conditions of increased ion permeability. In the present study, the authors considered whether continuous synthesis of Na,K-ATPase protein is necessary for maintenance of Na,K-ATPase activity in lens ce...

The growing polypeptide chain remains bound to the ribosome-messenger RNA complex through the sRNA carrying the last amino acid incorporated into the polypeptide chain.' On completion of the polypeptide chain a mechanism must exist for releasing it from the protein-synthesizing machinery. To date, most of the effort has been concentrated on establishing the coded information required for this e...

hydatidosis is a disease caused by infection with the metacestode stage of the dog tapeworm,echinococcus granulosus. this is recognised as one of the world’s most important zoonoses, affecting bothhumans and their domestic animals. in the current study, 20 sheep cystic livers or lungs were collected.hydatid fluid and protoscolices were isolated and the soluble protein was prepared. polypeptide ...

In addition to the previous isolated and sequenced polypeptides from green photosynthetic sulfur bacteria, which are presumably involved in binding BChl c and e, an analogous polypeptide has been purified from the BChl d-containing bacterium Chlorobium vibrioforme f. thiosulfatophilum. The primary structure of this 6.15 kDa polypeptide was determined. It shows an extremely high homology (98.3%)...