Asparagine deamidates through a cyclic intermediate to aspartate or isoaspartate; glutamine deamidates more slowly by a related route. Rate depends on the neighbouring residue, pH and temperature, and the reaction needs water, so it is far slower in a lyophilised solid than in solution.
The mass change is small enough to sit inside an isotope envelope, which makes it harder to see than oxidation.
Two of the three sequences contain no asparagine or glutamine. The thymosin fragment does, which is consistent with the parent protein, a sequence rich in glutamate, glutamine and lysine. In a blend, therefore, a deamidated species would be a thymosin-fragment species.
This narrows where to look if a certificate for a stored lot shows a new peak.
Cold and dry, the pathway is slow for the component that has it. In solution it proceeds, faster at higher pH and temperature. How long a GLOW solution remains within specification is a stability question for that system.
The GLOW blend is supplied by REVIVE LAB UAE for laboratory research use only, with batch identity by mass spectrometry and purity by HPLC. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| GLOW Pack | 70 mg blend | AED 1050 | 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.
Asparagine deamidates through a cyclic intermediate to aspartate or isoaspartate; glutamine deamidates more slowly by a related route. Rate depends on the neighbouring residue, pH and temperature, and the reaction needs water, so it is far slower in a lyophilised solid than in solution.
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.