跳转至内容
Merck
CN
所有图片(1)

文件

安全信息

F2006

Sigma-Aldrich

Human Fibronectin

from human plasma, powder, suitable for cell culture

别名:

纤连蛋白 溶液 来源于人类成纤维细胞

登录查看公司和协议定价
所有图片(1)

About This Item

EC 号:
289-149-2
MDL编号:
MFCD00131062
UNSPSC代码:
12352202
eCl@ss:
42020141
NACRES:
NA.75

product name

人血浆纤连蛋白, lyophilized powder, BioReagent, suitable for cell culture

生物来源

human plasma

质量水平

200

无菌性

sterile

产品线

BioReagent

检测方案

≥85% (SDS-PAGE)

形式

lyophilized powder

分子量

450 kDa

包装

pkg of 5 x 5 mg
pkg of 1 mg
pkg of 2 mg
pkg of 5 mg

浓度

>1 mg/mL protein

技术

cell culture | mammalian: suitable

表面覆盖度

1‑5 μg/cm2

杂质

HBSAG, none detected
 HCV, none detected
 HIV-1/HIV-2, none detected

溶解性

H2O: 1 mg/mL at 37 °C (Store reconstituted solution in working aliquots at -20°C or lower.)

NCBI登记号

NM_212482.4

UniProt登记号

P02751

结合特异性

Peptide Source: Collagen

运输

dry ice

储存温度

−20°C

基因信息

human ... FN1(2335)

正在寻找类似产品? 访问 产品对比指南

相关类别

一般描述

纤连蛋白（FN）是一种多功能糖蛋白，相应的基因定位于人染色体2q34-36。该基因有75kb长并含有50个外显子。纤连蛋白结构中包含多个重复肽序列，这些序列在本质上是同源的，并在两个亚基上形成线性排列的功能单元。它存在有两种主要的异构体，一个可溶而另一种不可溶。前者存在与血浆中，而不可溶形式则存在于组织和软骨的细胞外基质（ECM）中。因在不同的区域存在可变剪切，故存在约20种不同的纤连蛋白形式，其中有两个III型外显子的被称为Extra Domains A和B。

应用

来自人血浆的纤连蛋白可用于以下应用：
  • 细胞接种和神经元分化（作为CBSC（脐带血干细胞）重悬的扩增培养基的组分之一，并用于分化培养基）
  • 细胞培养（以纤连蛋白包被培养小室进行HEK293细胞的表达）
  • 体外纤连蛋白（FN）沉淀试验
  • 蛋白特异性
  • 用于细胞迁移研究

生化/生理作用

纤连蛋白（FN）在多种生物学功能中起着必不可少的作用，如血管生成、细胞迁移、细胞-细胞粘附、细胞-基膜粘附、血栓稳定、胚胎发生、分化、伤口愈合以及病原体与哺乳细胞和胞外基质的结合。 对中国汉族人群的研究表明该基因的突变可能与膝关节骨性关节炎（OA）的易感性存在关联。FN的的剪切体extra domain-B（EDB）是肿瘤血管生成的标志，并随着基质硬度的增加，内皮细胞而产生的这种异构体也会增加。在结直肠癌（CRC）中，EDA与肿瘤转移、血管生成和肿瘤生成存在关联，并可促进上皮-间充质转化。

注意

该重悬溶液应按工作溶液进行分装并储存在-20°C或更低温度下。 不推荐对重悬的纤连蛋白进行涡旋、过度的摇晃或额外的反复冻融。

制备说明

该产品是由pH 7.5的0.05 M Tris盐缓冲液冻干而得。 它在水中具有1 mg/mL的溶解度，并应当让其在37°C溶解至少30分钟。可能会保留少量的未溶解物质，但这并不会影响其性能。 蛋白的同质性是通过免疫电泳而评估的，并经内毒素测试，而且相应的源材料也具备HIV、乙型肝炎和丙型肝炎的阴性测试结果。在进行培养表面涂覆时，纤连蛋白应在无菌的平衡盐溶液中稀释并用最小的体积进行涂覆。 表面随后应在室温下空气干燥45分钟，并可在2-8°C储存2-4周。

免责声明

仅供研究使用。本品在法国的科研应用受到监管，包括用于进口和出口活动（法国《公共卫生法典》Public Health Code Article L 1211-1 paragraph 2）。如《公共卫生法典》所述，购买者（即最终用户）需要从法国研究部(France Ministry of Research)获得进口授权。订购此产品即代表您已确认获得合法的进口授权。

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

常规特殊物品

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I choose which fibronectin product to use to coat culture surfaces for cell growth?

    The species source for the fibronectin used when coating culture surfaces is not important.  It is the presence of the RGD binding site that is present in all fibronectins that promotes binding.

  4. How long can I store the fibronectin solution?

    The product is good for at least a year at 2-8 °C if kept sterile.

  5. How long can I store fibronectin coated plates, etc?

    Fibronectin coated cultureware can be stored for 2-4 weeks at 2-8 °C in a closed sterile container, or in sterile sealable bags.

  6. What is the procedure for coating culture surfaces with fibronectin?

    To coat culture surfaces: 1. Dilute fibronectin in sterile balanced salt solution and coat the culture surface (1-5 μg/cm2) with a minimal volume.  2. Allow to air dry for at least 45 minutes at room temperature.  Excess fibronectin may be removed by aspiration, but this is not necessary.

  7. How do I solubilized Fibronectin?

    Dissolve at 1 mg/mL in water. Allow to dissolve for at least 30 minutes at 37 °C. A small amount of undissolved material may remain. This will not affect product performance.

  8. How do I test the wells/flasks that have been coated with fibronectin?

    We test the coated culture surface by culturing cells.  We compare the adherence of the cells to wells that have been coated with media containing BSA (negative) and media containing 10% FBS (positive).  The cell growth should be not less than 50% of the positive control and greater than 50% of the negative control.

  9. How do I determine how much fibronectin is in solution?

    As the product may contain undissolved material, the amount of fibronectin in solution can be determined by UV absorbance.  The extinction coefficient for a 1% solution (10 mg/ml) is 13.5 at 280 nm.

  10. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  11. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  12. What is the difference between Fibronection Products F2006 and F1056?

    The difference between Product Nos. F2006 and F1056 is in the purity specifications and endotoxin testing.  Product  No. F2006 has a purity specification of ≥90% and is not tested for endotoxin contamination.  Product No. F1056 has a purity specification of ≥95% and is tested for endotoxin contamination with a specification of ≤100 EU/mg.

  13. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Marcin Jurga et al.
Biomaterials, 32(13), 3423-3434 (2011-02-18)
Currently, there are no effective therapies to restore lost brain neurons, although rapid progress in stem cell biology and biomaterials development provides new tools for regeneration of central nervous system. Here we describe neurogenic properties of bioactive scaffolds generated by
Fibronectin: a brief overview of its structure, function, and physiology
Proctor R A, et al.
Reviews of Infectious Diseases, 4, S317-S321 (1987)
Timothy E Quan et al.
Methods in molecular medicine, 135, 423-434 (2007-10-24)
Fibrocytes circulate in the peripheral blood, produce collagen and other matrix proteins, and express cell surface markers indicative of a hematopoetic origin distinguishing them from fibroblasts. Circulating fibrocytes were first identified in 1994 in a model system of wound repair
Kerim B Kaylan et al.
Integrative biology : quantitative biosciences from nano to macro, 8(12), 1221-1231 (2016-11-02)
Carcinoma progression is influenced by interactions between epithelial tumor cells and components of their microenvironment. In particular, cell-extracellular matrix (ECM) interactions are known to drive tumor growth, metastatic potential, and sensitivity or resistance to therapy. Yet the intrinsic complexity of
Fardin Fathi et al.
Rejuvenation research, 11(2), 371-378 (2008-04-09)
Embryonic stem cells (ESC) are defined by two main properties of self-renewal and their multipotency to differentiate into virtually all cell types of the body, including endothelial cells. ESCs have been widely regarded as an unlimited source of cells in
查看所有相关文献

商品

纤连蛋白

纤连蛋白（FN）是由肝细胞产生的多功能细胞外基质糖蛋白，以接近微摩尔的浓度循环，并与局部产生的细胞FN一起在细胞表面组装成胞外基质原纤维。

Fibronectin

Fibronectin (FN) plays crucial roles in extracellular matrix fibril assembly and cellular interactions.

Fibronectin

Fibronectin (FN) plays crucial roles in extracellular matrix fibril assembly and cellular interactions.

Attachment Factors for Three-dimensional Cell Culture

The extracellular matrix (ECM) and its attachment factor components are discussed in this article in relation to their function in structural biology and their availability for in vitro applications.

查看所有结果

实验方案

Fibronectin Coating Protocol

Dilute fibronectin for cell attachment, varying per cell type. Coating protocol, products, and FAQs provided.

相关内容

Serum free cancer cell line media

Defined culture conditions. Consistent growth of human cancer cell lines in PromoCell’s serum-free/xeno-free Cancer Cell Line Media-XF. Explore over 350 PromoCell products on Sigma.com

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门