1. Peptides
  2. Peptide 78

Peptide 78,一种趋化细胞因子,由 78 个氨基酸组成,是 IL-8 或 C-X-C 趋化因子超基因家族的蛋白成员。Peptide 78 诱导中性粒细胞 (PMN) 在类风湿性关节炎 (RA) 关节方面发挥重要作用。

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Custom Peptide Synthesis

Peptide 78 Chemical Structure

Peptide 78 Chemical Structure

CAS No. : 132116-62-2

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Customer Review

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Peptide 78, a chemotactic cytokine, a 78 amino acid protein member of the IL-8 or C-X-C chemokine supergene family. ENA-78 plays an important role in the elicitation of predominantly neutrophils (PMNs) into the joints of rheumatoid arthritis (RA)[1].

体外研究
(In Vitro)

Peptide 78, a potent PMN chemotaxin, in the conditioned medium of human pulmonary epithelial cells (A549) stimulated with TNF-α (20 ng/mL) or IL-1β (10 ng/mL). Peptide 78 is an 8.3-kD protein with 78 amino acids containing 4 cysteines positioned identically to those of IL-8 and its homologues. Peptide 78 belongs to a supergene family that includes platelet factor-4, platelet basic protein, and its cleavage products (connective tissue activating peptide-III, β-thromboglobulin, and interferon-γ-inducible protein, macrophage inflammatory protein-2α, and macrophage inflammatory protein-2β)[1].
Peptide 78 shares several properties of PMN activation similar to either NAP-2 or LL-8. Peptide 78 stimulation of PMNs results in significant chemotactic activity, release of elastase from cytochalasin-B-pretreated cells, and the induction of free, cytosolic calcium release. Peptide 78 aids in the recruitment of PMNs into inflamed joints of RA. Peptide 78 represents one of the most abundant chemokines present in RA synovial fluid.Peptide 78 in rheumatoid arthritis synovial fluids is biologically active. Peptide 78 appears to account for almost half of the RA synovial fluid PMN chemotactic activity in vitro[1].

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

分子量

1542.72

Formula

C62H107N23O21S

CAS 号
性状

固体

颜色

White to off-white

Sequence Shortening

TMRKPRSGNPDVAN

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: 

H2O 中的溶解度 : 100 mg/mL (64.82 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 0.6482 mL 3.2410 mL 6.4821 mL
5 mM 0.1296 mL 0.6482 mL 1.2964 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:

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 (64.82 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
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 1 mM 0.6482 mL 3.2410 mL 6.4821 mL 16.2051 mL
5 mM 0.1296 mL 0.6482 mL 1.2964 mL 3.2410 mL
10 mM 0.0648 mL 0.3241 mL 0.6482 mL 1.6205 mL
15 mM 0.0432 mL 0.2161 mL 0.4321 mL 1.0803 mL
20 mM 0.0324 mL 0.1621 mL 0.3241 mL 0.8103 mL
25 mM 0.0259 mL 0.1296 mL 0.2593 mL 0.6482 mL
30 mM 0.0216 mL 0.1080 mL 0.2161 mL 0.5402 mL
40 mM 0.0162 mL 0.0810 mL 0.1621 mL 0.4051 mL
50 mM 0.0130 mL 0.0648 mL 0.1296 mL 0.3241 mL
60 mM 0.0108 mL 0.0540 mL 0.1080 mL 0.2701 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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产品名称:
Peptide 78
目录号:
HY-P2642
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