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Products
Pharmacology
Type
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- Technical support
- Resources
p28
Cat. No. PP-210
Structure:
H-Leu-Ser-Thr-Ala-Ala-Asp-Met-Gln-Gly-Val-Val-Thr-Asp-Gly-Met-Ala-Ser-Gly-Leu-Asp-Lys-Asp-Tyr-Leu-Lys-Pro-Asp-Asp-OH
Other Names:
Azurin p28, NSC 745104, p28 (Leu50-Asp77)
Activity:
Binds to p53 and inhibits cop1 binding
p28 is an amphipathic, α-helical, cell penetrating peptide composed of amino acids Leu50-Asp77 of azurin, a redox protein secreted from the opportunistic pathogen pseudomonas aeruginosa. p28 is a post translational, multitarget anticancer agent that preferentially enters a wide variety of solid tumour cells. On entry, p28 binds to both wild-type and mutant p53 protein, inhibiting constitutional morphogenic protein 1 (cop1) mediated ubiquitination and proteasomal degradation of p53, increasing levels of p53 which induce cell cycle arrest at G2/M and causing apoptosis that results in tumour cell shrinkage and death.
Mehta et al (2011) A cell penetrating peptide derived from azurin inhibits angiogenesis and tumor growth by inhibiting phosphorylation of VEGFR-2, FAK and Akt. Angiogenesis 14(3) 355 PMID: 21667138
Yamada et al (2013) p28, a first in class peptide inhibitor of cop1 binding to p53. Br J Cancer. 108(12) 2495 PMID: 23736031
Yaghoubi et al (2020) p28 Bacterial Peptide, as an Anticancer Agent. Front Oncol. 2020 10 1303 PMID: 32850408
Related areas
All protein-protein interaction modulators >
All cancer research categories >
All regulated cell death categories >
Technical Data
| Structure | H-Leu-Ser-Thr-Ala-Ala-Asp-Met-Gln-Gly-Val-Val-Thr-Asp-Gly-Met-Ala-Ser-Gly-Leu-Asp-Lys-Asp-Tyr-Leu-Lys-Pro-Asp-Asp-OH |
| CAS Number | 897026-25-4 |
| Molecular Weight | 2914.18 |
| Formula | C122H197N31O47S2 |
| Sequence | LSTAADMQGVVTDGMASGLDKDYLKPDD |
| 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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