Parstatin(human) TFA

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Parstatin(human) TFA;

Parstatin(human) TFA 是具有细胞通透性的 PAR-1 凝血酶受体的肽类激动剂，是一种有效的血管生成抑制剂。

Parstatin(human) TFAamp;;

Parstatin(human) TFA Chemical Structure

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生物活性

Parstatin(human) TFA, a cell-penetrating PAR-1 thrombin receptor agonist peptide, is a potent inhibitor of angiogenesis[1][2].

体外研究
(In Vitro)

Parstatin (0-10 µM) increases recovery of LVDP in a concentration-dependent manner. The optimal concentration was 1 µM which produced a 23% recovery of LVDP[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究
(In Vivo)

Parstatin (single dose, 1-25 µg/kg, iv) administered prior to ischaemia confers immediate cardioprotection by recruiting the Gi-protein activation pathway including p38 MAPK, ERK1/2, NOS, and KATP channels. Parstatin exerts effects on both the cardiomyocytes and the coronary circulation to induce cardioprotection. This suggests a potential therapeutic role of parstatin in the treatment of cardiac injury resulting from ischaemia and reperfusion[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male Sprague–Dawley rats at 8 weeks of age (250-300 g)[1].
Dosage: 1-25 µg/kg.
Administration: IV injected 15 min prior to ischaemia.
Result: A significant decrease in infarct size was detected with the 5-15 µg/kg doses with 10 µg/kg as the optimal dose. These hearts had an infarct size of 46 ± 3% of the area at risk, which is a 26% reduction in infarct size compared with the control.

分子量

4581.28

Formula

C193H331F3N64O55S3
Sequence Shortening

MGPRRLLLVAACFSLCGPLLSARTRARRPESKATNATLDPR
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.
Solvent Solubility
In Vitro:;

H2O

Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.
参考文献

  • [1]. Panagiota Zania, et al. Parstatin, the Cleaved Peptide on Proteinase-Activated Receptor 1 Activation, Is a Potent Inhibitor of Angiogenesis. J Pharmacol Exp Ther. 2009 Feb;328(2):378-89.

    [2]. Jennifer L Strande, et al. Parstatin: A Cryptic Peptide Involved in Cardioprotection After Ischaemia and Reperfusion Injury. Cardiovasc Res. 2009 Jul 15;83(2):325-34.