Big Endothelin-1(1-38),human

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CAS NO:	120796-97-6
包装:	1mg
市场价:	11500元

大内皮素-1 (1-38)，人

Big Endothelin-1 (1-38), human 是内皮素-1 (endothelin-1) 的前体。Endothelin-1 (ET-1) 是一种有效的升压肽。

生物活性

Big Endothelin-1 (1-38), human is the precursor of endothelin-1. Endothelin-1 (ET-1) is a potent vasopressor peptide^[1].

分子量

4282.92

性状

Solid

Formula

C₁₈₉H₂₈₂N₄₈O₅₆S₅

CAS 号

120796-97-6

Sequence

Cys-Ser-Cys-Ser-Ser-Leu-Met-Asp-Lys-Glu-Cys-Val-Tyr-Phe-Cys-His-Leu-Asp-Ile-Ile-Trp-Val-Asn-Thr-Pro-Glu-His-Val-Val-Pro-Tyr-Gly-Leu-Gly-Ser-Pro-Arg-Ser (Disulfide bridge: Cys1-Cys15; Cys3-Cys11)

Sequence Shortening

CSCSSLMDKECVYFCHLDIIWVNTPEHVVPYGLGSPRS (Disulfide bridge: Cys1-Cys15; Cys3-Cys11)

中文名称

大内皮素-1 (1-38)，人

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Sealed storage, away from moisture

Powder	-80°C	2 years
	-20°C	1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

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.