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Products
Pharmacology
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- Technical support
- Resources
TAT-QFNP12
Cat. No. PP-400
Structure:
H-Tyr-Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-Val-Lys-Lys-Glu-Ala-Glu-Leu-Asp-Lys-Tyr-Leu-Glu-OH
Activity:
NDRG2 - PPM1A binding blocker
TAT-QFNP12 is a peptide corresponding to the 302 to 313 amino acid domain of the protein phosphatase PPM1A, made cell permeable by the addition of TAT, and is a key fragment involved in the binding of PPM1A to the cytoplasmic protein NDRG2. TAT-QFNP12 blockade of the binding of NDRG2 with PPM1A allows PPM1A to enter the nucleus and dephosphorylate Smad2/3, preventing transcription and production of matrix metalloproteinase 9 (MMP-9). Unwanted increased levels of MMP-9 have an important part in blood-brain barrier (BBB) injury in subarachnoid haemorrhage (SAH) and can critically exacerbate poor prognosis. In mouse models of SAH, TAT-QFNP12 dose-dependently inhibits MMP-9 expression and Smad2/3 phosphorylation, and significantly reduces brain edema and neurological deficits, demonstrating that TAT-QFNP12 can protect the blood-brain barrier after SAH and alleviate secondary nerve injury.
Feng et al (2022) Astrocytic NDRG2-PPM1A interaction exacerbates blood-brain barrier disruption after subarachnoid hemorrhage. Sci Adv. 8(39) eabq2423 PMID: 36179025
Related areas
All cell penetrating peptides >
All protein-protein interaction modulators >
All neuroscience research categories >
Technical Data
| Structure | H-Tyr-Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-Val-Lys-Lys-Glu-Ala-Glu-Leu-Asp-Lys-Tyr-Leu-Glu-OH |
| Molecular Weight | 3004.73 |
| Formula | C130H225N47O35 |
| Sequence | YGRKKRRQRRRVKKEAELDKYLE |
| Modifications | None |
Solubility and Storage
| Solubility | Soluble in water |
| Appearance | Freeze dried solid |
| Storage | Store dry, frozen and in the dark |
Batch Specific Data
| Purity | >95% by hplc |
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Recent citations
A new publication from the University of Ljubljana uses MCA-AVLQSGFR-Lys(Dnp)-Lys-NH2, the FRET substrate for the severe acute respiratory syndrome coronavirus main protease (SARS-CoV Mpro), to determine the inhibitory potential of plant polyphenols
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