Melittin

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Melittin

本产品不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。

CAS NO:

20449-79-0

包装与价格：

包装	价格(元)
5mg	电议
10mg	电议
25mg	电议

产品名称

蜂毒肽

产品介绍

Melittin 是一种PLA₂激活剂，可刺激低分子量 PLA₂的活性，而不会提高高分子量 PLA₂的活性。

生物活性

Melittin is aPLA₂activator, stimulates the activity of the low molecular weight PLA₂, while it does not the increase activity of the high molecular weight PLA₂^[1]^[2].

IC₅₀& Target

PLA₂^[1]

体外研究
(In Vitro)

Melittin, an immunologically related PLA₂stimulating peptide from bee venom, increases the activity of the high molecular weight enzyme^[1]. Melittin is a cytotoxic peptide from bee venom. Melittin exhibits toxicity against both A2780CR and A2780 cells, with IC₅₀values of 4.5 and 6.8 μg/mL, respectively. Melittin has natural anti-bacterial, anti-viral, and anti-inflammatory properties. It has also been shown to have diverse anticancer effects in several different cancer cell lines including those of gastric, breast, ovarian, liver, prostate, cervical, and lung origins. The mechanisms by which Melittin, an amphipathic haemolytic peptide, exerts its potential anticancer effects include inhibition of cell proliferation, induction of apoptosis, and direct necrosis. Melittin can also prevent EGF-induced cell invasion through its inhibition of the PI3K/Akt/mTOR signaling pathway, but this is primarily related to breast cancer cells^[2].

分子量

2846.46

性状

Solid

Formula

C₁₃₁H₂₂₉N₃₉O₃₁

CAS 号

20449-79-0

Sequence

Gly-Ile-Gly-Ala-Val-Leu-Lys-Val-Leu-Thr-Thr-Gly-Leu-Pro-Ala-Leu-Ile-Ser-Trp-Ile-Lys-Arg-Lys-Arg-Gln-Gln-NH2

Sequence Shortening

GIGAVLKVLTTGLPALISWIKRKRQQ-NH2

中文名称

蜂毒肽；蜂毒素

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Powder	-80°C	2 years
	-20°C	1 year
In solvent	-80°C	6 months
	-20°C	1 month

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 (<0)	1. Try to dissolve the peptide in water first. 2. If water fails, add NH₄OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (>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.