1. Peptides
  2. SPACE peptide

SPACE peptide 是一种皮肤穿透肽 (SPPs)。SPACE peptide 能增强大分子透明质酸的局部传递。

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SPACE peptide Chemical Structure

SPACE peptide Chemical Structure

CAS No. : 1621717-95-0

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Customer Review

  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

SPACE peptide is a skin penetrating peptide (SPPs). SPACE peptide can enhance topical delivery of a macromolecule, hyaluronic acid[1][2][3].

体外研究
(In Vitro)

SPACE peptide, when conjugates to cargoes such as small molecules and proteins, is able to facilitate their penetration across the stratum corneum into epidermis and dermis[2].
SPACE peptide also exhibits increased penetration into various cells including keratinocytes, fibroblasts, and endothelial cells, likely through a macropinocytosis pathway[2].
SPACE peptide enhances Cyclosporine A skin penetration, via a transcellular pathway, enhancing its partitioning into keratin-rich corneocytes through concurrent binding of SPACE with keratin and Cyclosporine A[3].

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

分子量

1090.15

Formula

C40H63N15O17S2

CAS 号
性状

固体

颜色

White to off-white

Sequence

Ala-Cys-Thr-Gly-Ser-Thr-Gln-His-Gln-Cys-Gly (Disulfide bridge: Cys2-Cys10)

Sequence Shortening

ACTGSTQHQCG (Disulfide bridge: Cys2-Cys10)

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)

溶解性数据
In Vitro: 

DMSO 中的溶解度 : 100 mg/mL (91.73 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

H2O 中的溶解度 : 50 mg/mL (45.87 mM; 超声助溶)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.9173 mL 4.5865 mL 9.1730 mL
5 mM 0.1835 mL 0.9173 mL 1.8346 mL
查看完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

In Vivo:

请根据您的 实验动物和给药方式 选择适当的溶解方案。

以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:
——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用
以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 方案 一

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (2.29 mM); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入 50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL

    生理盐水的配制:将 0.9 g 氯化钠,溶解于 ddH₂O 并定容至 100 mL,可以得到澄清透明的生理盐水溶液。
  • 方案 二

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (2.29 mM); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液 中,混合均匀。

    20% SBE-β-CD in Saline 的配制(4°C,储存一周):2 g SBE-β-CD(磺丁基醚 β-环糊精)粉末定容于 10 mL 的生理盐水中,完全溶解至澄清透明。

以下溶解方案,请直接配置工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

  • 方案 一

    请依序添加每种溶剂: PBS

    Solubility: 100 mg/mL (91.73 mM); 澄清溶液; 超声助溶

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
该产品水溶性佳,请具体参考实测 水 / PBS / Saline 中的溶解度数据。
您所需的储备液浓度超过该产品的实测溶解度,如有需要,请与 MCE 中国技术支持联系。
纯度 & 产品资料

纯度: 98.86%

参考文献
Cell Assay
[2]

The cytotoxicity of SPACE peptide is assessed using the MTT Cell Proliferation Assay. HEKa cells are seeded in 96-well microplates at a density of 5000 cells/well. Cultures are allowed to grow until they reaches ~80% confluency. Cells are then incubated with 150 μL of 10, 5, 2.5, or 1.25 mg/mL SPACE peptide in media. Media only is used as a negative control, and media without cells is used to subtract background. Cytotoxicity is assessed for 1, 4, and 12 h incubation periods[2].

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

Animal Administration
[3]

Mice: Female BALB/c mice (knockdown of GAPDH protein) are anesthetized using isoflurane inhalation (2-3%), the back skin of animals is shaved, and a cylinder with an exposed skin area of 1.8 cm2 is attached to the back of mice. 200 μL of the SPACE peptide is topically applied in the attached cylinder, and is manually spread over the entire exposure area. Applied test solutions are allowed to incubate with the exposed skin for 6 hours while keeping animals under minimal anesthesia. After 6 hours, the cylinder is carefully removed, and the entire exposure area is covered with sterile gauze and a breathable bandage. After 72 hrs, animals are sacrificed and skin biopsies (5 mm diameter) are collected from treated area of the animal’s skin. Total protein concentration in the skin biopsy tissue is determined[3].

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

参考文献

完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
H2O / DMSO 1 mM 0.9173 mL 4.5865 mL 9.1730 mL 22.9326 mL
5 mM 0.1835 mL 0.9173 mL 1.8346 mL 4.5865 mL
10 mM 0.0917 mL 0.4587 mL 0.9173 mL 2.2933 mL
15 mM 0.0612 mL 0.3058 mL 0.6115 mL 1.5288 mL
20 mM 0.0459 mL 0.2293 mL 0.4587 mL 1.1466 mL
25 mM 0.0367 mL 0.1835 mL 0.3669 mL 0.9173 mL
30 mM 0.0306 mL 0.1529 mL 0.3058 mL 0.7644 mL
40 mM 0.0229 mL 0.1147 mL 0.2293 mL 0.5733 mL
DMSO 50 mM 0.0183 mL 0.0917 mL 0.1835 mL 0.4587 mL
60 mM 0.0153 mL 0.0764 mL 0.1529 mL 0.3822 mL
80 mM 0.0115 mL 0.0573 mL 0.1147 mL 0.2867 mL

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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SPACE peptide
目录号:
HY-P0123
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