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Your Position: Home > Protein > Laminin 521 > LA5-H5214

Human Laminin 521 Protein, premium grade

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  • Product Details
    Laminin 521 (LN521) is a recombinant human protein that provides a defined surface for in vitro feeder-free culture of multiple human pluripotent stem cells (PSCs). LN521 has been proven to maintain normal growth characteristics and stemness in multiple PSC lines without simultaneous differentiation, which includes ESC, iPSC, MSC etc. In addition, LN521 has been demonstrated to support PSC growth for >10 passages without any signs of karyotypic abnormalities and to maintain the ability of PSCs to differentiate into all three germ line lineages.
    We have different versions of laminin 521 protein. In most applications, laminin 521 protein (LA5-H5261) has similar performance with laminin 521 protein (LA5-H5214). However, there might be slight difference in specific applications, so it is recommended to try these two products and choose the best product.

    Flexible & Compatible
    Laminin 521 could work well in any commercial stem cell media. Meanwhile, it could support the attachment and expansion of hPSCs both in single cells or small colonies.

    Stemness maintenance
    Laminin 521 is the biologically relevant hPSCs extracellular matrix. It is crucial for the growth and stemness maintenance of hPSCs in human through its binding to cell receptors a6β1 integrin.

    Enhance cell differentiation
    Due to the diverse biorelevant environment, laminin 521 could also enhance cell differentiation, polarization and organization of target cell types, including neuron, hepatocytes, cardiomyocytes, retinal pigmented epithelial cells, pancreatic β-cells and so on.

    Reduce Variability
    LN521 is a defined, recombinant human protein with better lot-to-lot consistency that reduces variability in your PSC cultures.
  • Key parameter
    Purity (SDS PAGE)> 95%
    Mycoplasma TestNegative
    Sterility TestNegative
    Endotoxin Test< 0.01 EU per μg
    Host Cell Protein< 0.5 ng/µg
    Host Cell DNA< 0.02 ng/μg
  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 24 months in lyophilized state;
    2. -70°C for 12 months under sterile conditions after reconstitution;
    3. 2-8°C for 3 months under sterile conditions after reconstitution.
Bioactivity-SPR
 Laminin 521 SPR

Human Laminin 521 Protein, premium grade (Cat. No. LA5-H5214) immobilized on CM5 Chip can bind Human ITGA6&ITGB1 Heterodimer Protein, His Tag&Tag Free (IT1-H52W7) with an affinity constant of 19.9 nM as determined in a SPR assay (Biacore 8K) (QC tested).

  • Clinical and Translational Updates

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Price(USD) : $465.00

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