跳转至内容
Merck
CN

L2020

Sigma-Aldrich

Mouse Laminin

from Engelbreth-Holm-Swarm murine sarcoma basement membrane, 0.2 μm filtered, liquid, 1-2 mg/mL, suitable for cell culture

登录查看公司和协议定价

别名:
层粘蛋白
MDL编号:
UNSPSC代码:
12352202
NACRES:
NA.75

product name

层粘连蛋白 来源于 Engelbreth-Holm-Swarm 小鼠肉瘤基底膜, 1-2 mg/mL in Tris-buffered saline, 0.2 μm filtered, BioReagent, suitable for cell culture

生物来源

mouse (Engelbreth-Holm-Swarm mouse sarcoma basement membrane)

质量水平

产品线

BioReagent

形式

aqueous solution

分子量

A subunit 400 kDa
B1 subunit 210 kDa
B2 subunit 200 kDa

包装

pkg of 1 mg

浓度

1-2 mg/mL in Tris-buffered saline

技术

cell culture | mammalian: suitable

表面覆盖度

1‑2 μg/cm2

杂质

Microbial Contamination, passes test

NCBI登记号

UniProt登记号

结合特异性

Peptide Source: Collagen

运输

dry ice

储存温度

−20°C

正在寻找类似产品? 访问 产品对比指南

相关类别

一般描述

层粘连蛋白是分子量较大的非胶原粘着糖蛋白。它们是异三聚体蛋白,含有三个二硫键连接的多肽:α、β和 γ链。层粘连蛋白的多个多肽结构域可结合多个细胞表面受体,包括多个整联蛋白二聚体、肌营养不良蛋白聚糖和多配体蛋白聚糖,以及其它细胞外基质成分。这种细胞外基质多结构域三聚体糖蛋白是维持粘附、增殖和分化的基底膜的主要组分。

应用

来自Engelbreth-Holm-Swarm小鼠肉瘤基底膜的层粘连蛋白已用于:
  • 胰岛素生成细胞(IPC)分化
  • 感染抑制检测。
  • 增殖检测。
层粘连蛋白支持多种细胞类型的生长和分化,包括表皮、内皮、神经、肌肉和肝脏细胞。 建议将其按1-2 μg/cm2用作细胞培养的基质。 最佳的浓度的确取决于细胞类型以及应用或研究目标。

生化/生理作用

层粘连蛋白是动物组织中结构性支架的组成部分。 它们通过内功素和基底膜聚糖与IV型胶原结合,并通过整合素受体、dystroglycan糖蛋白复合物以及Lutheran血型糖蛋白与细胞膜结合。 层粘连蛋白具有胶原结合、细胞粘附、肝素结合和神经突向外生长片段的活性结构域。

组分

层粘连蛋白是一种细胞外基质多结构域三聚体糖蛋白,并且是支持粘附、增殖和分化的基底膜的主要非胶原组分。 层粘连蛋白是由通过多个二硫键连接的A、B1和B2链组成。这款层粘连蛋白产品是从小鼠Engelbreth-Holm-Swarm肿瘤中分离的。

注意

建议将其按工作溶液进行分装并储存在-20°C。

制备说明

本品以1 − 2 mg/mL浓度形式提供,含50 mM Tris-HCl和150 mM NaCl。 其经0.2μm滤器过滤。在使用前在2-8°C将该溶液缓慢解冻以避免形成凝胶。 如需用作涂层,可在平衡盐溶液中稀释并用最小的体积涂覆在培养的表面,随后在37℃下孵育2小时。 在细胞铺板之前用PBS洗涤3次。层粘连蛋白可储存在2-8°C达一个月。

相关产品

产品编号
说明
价格

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

动植物源性产品

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. What is the protein concentration of the solution of Product L2020, Laminin?

    The protein specification for L2020 is 1.0 to 2.0 mg/mL. The exact value can be found on the lot-specific Certificate of Analysis, which can be downloaded from our website.

  3. What type of laminin is Product L2020?

    In the nomenclature system by Burgeson, this is Laminin 1. The laminins were numbered with Arabic numerals in the order discovered. The previous A, B1, and B2 chains, and their isoforms are listed by the Greek letters, for alpha, beta, and gamma, respectively, followed by an Arabic numeral to identify the isoforms.  For example, the first laminin identified from the Engelbreth-Holm-Swarm tumor (EHS) was designated laminin-1 with the chain composition α-1/β-1/γ-1. The genes for these 3 chains are LAMA1, LAMB1, and LAMC1. Reference: Burgeson, R.E., et al., A new nomenclature for the laminins. Matrix Biol., 14, 209-211 (1994).

  4. What is the purity of Laminin, Product L2020?

    We do not determine a purity of this product.  An SDS PAGE gel is run and the pattern (3 bands) is comparable to past lots.

  5. Can I coat Laminin, Product L2020, on top of poly-L-lysine for better adherence?

    When coating coverslips or slides for use with neural stem cells (neurospheres), the following procedure is recommended. Precoat the coverslips with poly-L-lysine (Product No. P5899) at 100 μg/mL. This is incubated for 30 minutes or more at room temperature. The coverslips are then washed with sterile water and allowed to dry. The poly-lysine coated coverslips can be stored at room temperature until ready to use (up to ~1 month). Coverslips are then coated with 30 - 50 μL of warmed laminin, which is at a concentration of 50 μg/mL. Incubate at 37°C for 30 minutes. Remove the laminin, and wash with DME (50 μL) twice. Cells are then added to the coverslips.

  6. How can I store solutions of Laminin, Product L2020?

    The product has a recommended storage temperature of -20°C.  Please note, the product needs to be thawed slowly at 2-8°C.  If the product has been warmed up at room temperature and it gels, it cannot be reactivated for use. We recommend storage at 2-8°C for up to one week. For longer storage, the product needs to be frozen at -20°C in single-use aliquots.

  7. 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.

  8. 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.

  9. 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. 

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

    Ask a Scientist here.

Tobias Bergström et al.
Biochimica et biophysica acta, 1840(8), 2526-2532 (2014-01-28)
It is becoming increasingly apparent that the extracellular matrix acts as an important regulator of the neural stem niche. Previously we found that neural stem and progenitor cells (NSPCs) derived from the early postnatal subventricular zone of mice adhere to
The laminin family
Monique Aumailley
Journal of Separation Science, 7(1), 48-55 (2013)
Fibronectin and laminin promote differentiation of human mesenchymal stem cells into insulin producing cells through activating Akt and ERK.
Lin HY, et al.
Journal of Biomedical Science, 17:56 (2010)
Axonal pathfinding: Extracellular matrix role
Letourneau, P
Encyclopedia of Neuroscience, 1, 1139-1145 (2009)
Mitogenic activity of laminin on human melanoma and melanocytes: different signal requirements and role of beta 1 integrins.
Mortarini R, et al.
Cancer Research, 55(20), 4702-4710 (1995)

商品

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.

细胞外基质(ECM)是由细胞分泌并在组织中围绕在其周围。

The extracellular matrix (ECM) is secreted by cells and surrounds them in tissues.

Frequently asked questions about neural stem cells including NSC derivation, expansion and differentiation.

查看所有结果

实验方案

用于细胞培养的层粘连蛋白包被表面需要特定的条件才能获得理想的结果。包含了用于包被盖玻片以进行神经球状体和常规细胞培养的实验方案。

Coating surfaces with laminin for culturing cells requires specific conditions for optimal results. Protocols for coating coverslips to culture neurospheres and general cell culture are included.

A stem cell culture protocol to generate 3D NSC models of Alzheimer’s disease using ReNcell human neural stem cell lines.

Step-by-step culture protocols for neural stem cell culture including NSC isolation, expansion, differentiation and characterization.

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