Circular dichroism in water shows a mostly disordered peptide; in trifluoroethanol or at a membrane surface the helical content rises sharply. The helix is amphipathic, so it is thought to lie on the membrane surface and then present its amino terminus to the receptor core. This membrane-catalysed binding model is shared across the family and is one reason the carboxyl-terminal residues, which extend the helix, raise affinity.
The helix also explains why some analogues with helix-stabilising substitutions bind more tightly.
Removing tyrosine 1 or altering alanine 2 and aspartate 3 abolishes activation while sometimes sparing binding, which is the basis of GHRH antagonists. Substitutions in the helix that preserve its amphipathic character are tolerated; those that break it are not. The carboxyl terminus can be removed to residue 29 with full activity retained, and the natural 40-residue form is as active as the 44.
The hexenoyl group sits on the alpha-amino group of tyrosine 1, blocking the enzyme without changing the residue the receptor reads.
Because the structural biology explains both the design of the analogue and the pharmacology of the class. It describes chemistry and no use of the pack.
Tesamorelin is supplied by REVIVE LAB UAE for laboratory research use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| Tesamorelin Pack | 20 mg | AED 1010 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
Circular dichroism in water shows a mostly disordered peptide; in trifluoroethanol or at a membrane surface the helical content rises sharply. The helix is amphipathic, so it is thought to lie on the membrane surface and then present its amino terminus to the receptor core. This membrane-catalysed binding model is shared across the family and is one reason the carboxyl-terminal residues, which extend the helix, raise affinity.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.