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L6274

Sigma-Aldrich

Laminin from human placenta

Laminin from human placenta

liquid, BioReagent, suitable for cell culture

Synonym(s):

Cell culture grade laminin, Human Laminin

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0.5 MG
₪4,177.00

₪4,177.00


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0.5 MG
₪4,177.00

About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.77

₪4,177.00


Please contact Customer Service for Availability

Request a Bulk Order

biological source

human placenta

Quality Level

product line

BioReagent

form

liquid

concentration

0.5 mg/mL in Tris-buffered saline

technique(s)

cell culture | mammalian: suitable

surface coverage

1‑2 μg/cm2

UniProt accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... LAMB1(3912)

Application

Laminin supports growth and differentiation of many cell types including epithelial, endothelial, neural, muscle and liver cells. It is recommended for use as a cell culture substratum at 1-2 μg/cm2. The optimal concentration does depend on cell type as well as the application or research objectives.

Biochem/physiol Actions

Laminin proteins are integral components of structural scaffolding in animal tissues. They associate with type IV collagen via entactin and perlecan and bind to cell membranes through integrin receptors, dystroglycan glycoprotein complexes and Lutheran blood group glycoproteins. Laminin has active domains for collagen binding, cell adhesion, heparin binding, and neurite outgrowth fragment.

Components

Laminin is an extracellular matrix multidomain trimeric glycoprotein, and is the main non-collagenous component of basal lamina that supports adhesion, proliferation and differentiation. Laminin is composed of both A, B1 and B2 chains, which are connected by many disulfide bonds. This laminin product is purified from human placenta using pepsin treatment and immunoaffinity chromatography. SDS-PAGE results in two major bands at 50 kDa and 130-160 kDa.

Caution

It is recommended to store this product at -70°C, where it will remain stable for two years.

Preparation Note

This product is supplied at a concentration of 0.5 mg/mL in 50 mM Tris-HCl, with 150 mM NaCl. It is 0.2 μm filtered. Thaw this solution slowly before use at 2-8°C to avoid gel formation. For use as a coating, dilute in a sterile balanced salt solution, coat culture surface with a minimal volume and incubate at 37°C for two hours. Wash 3 times with PBS before plating cells. Laminin coatings can be stored for one month at 2-8°C.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Satu Marja Myllymäki et al.
PloS one, 6(5), e19453-e19453 (2011-05-17)
Formation of apical compartments underlies the morphogenesis of most epithelial organs during development. The extracellular matrix (ECM), particularly the basement membrane (BM), plays an important role in orienting the apico-basal polarity and thereby the positioning of apical lumens. Integrins have
Danielle K Lewis et al.
Aging cell, 7(6), 836-849 (2008-09-10)
Astrocytes comprise a large proportion of the central nervous system support cells and play a critical role in neural injury and repair. The present study examined the impact of ovarian aging using an ex vivo model system, where astrocytes were
Terhi P Teräväinen et al.
PloS one, 8(8), e71485-e71485 (2013-08-27)
The properties of epithelial cells within tissues are regulated by their immediate microenvironment, which consists of neighboring cells and the extracellular matrix (ECM). Integrin heterodimers orchestrate dynamic assembly and disassembly of cell-ECM connections and thereby convey biochemical and mechanical information
Yanni Ge et al.
Molecular therapy. Nucleic acids, 19, 1250-1265 (2020-02-23)
Recent studies reported that DNA methylation was involved in retinal cell death. Methyl-CpG binding domain protein 2 (Mbd2) is one of the DNA methylation readers. Its role and mechanism of regulation remain unclear. The ischemia/reperfusion (I/R) model in mice primary culture
Elizabeth K Davis et al.
Neural development, 3, 32-32 (2008-11-07)
Wnt proteins comprise a large class of signaling molecules that regulate a variety of developmental processes, including synapse formation. Previous studies have shown Wnts to be involved in both the induction and prevention of synapses in a number of different

Articles

Cancer stem cell media, spheroid plates and cancer stem cell markers to culture and characterize CSC populations.

Protocols

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.

Questions

1–4 of 4 Questions  
  1. Is Product L6274, Laminin from human placenta, laminin 1 or 2?

    1 answer
    1. Fifteen laminin trimers have been identified. We do not determine what type of laminin this is. Typically laminin from placenta is considered laminin-2/4 and laminin from Engelbreth-Holm-Swarm murine sarcoma basement membrane is laminin-1.

      Helpful?

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

    1 answer
    1. 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.

      Helpful?

  3. How long can cover slips coated with Product L6274, Laminin from human placenta, be stored?

    1 answer
    1. Laminin coatings, such as laminin coated cover slips last about one month at 2-8°C. Do not use the product if discoloration or spider web formations appear on the surface of the coated material.

      Helpful?

  4. How do you prepare Product L6274, Laminin from human placenta?

    1 answer
    1. To prepare a laminin solution, we recommend that the L6274 be thawed at 2-8°C to avoid the formation of a gel. This can be further diluted in a balanced salt solution. If the product has been thawed at room temperature and ends up as a gel, it cannot be reactivated for use.

      Helpful?

Reviews

Active Filters

  1. Charlottesville, VA
    • Reviews 2
    • Votes 2
    5 out of 5 stars.

    Functional protein for culture use

    I use this in a plate coating buffer for primary cell culture. While the protocol called for laminin from another manufacturer (backordered), I tried this one with great success. This protein is functional and supports epithelial cell growth.

    Helpful?

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