Recombinant Mouse Layilin Protein, CF

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R&D Systems Recombinant Proteins and Enzymes
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Recombinant Mouse Layilin Protein, CF Summary

Product Specifications

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Measured by its binding ability in a functional ELISA. Immobilized rmLayilin at 5 µg/mL (100 µL/well) can bind biotinylated hyaluronan with a linear range of 0.8-50 µg/mL.
Mouse myeloma cell line, NS0-derived mouse Layilin protein
Lys18-Glu229 (Ala29-Gly36 del), with a C-terminal 10-His tag
Accession #
N-terminal Sequence
Predicted Molecular Mass
24.8 kDa
38 kDa, reducing conditions

Product Datasheets

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Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.


Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: Layilin

Layilin (named after the L-A-Y-I-L-I amino acid motif in the transmembrane segment) is a member of the animal C-type lectin family (1). The mouse Layilin cDNA encodes a 402 amino acid (aa) type I transmembrane protein that, based on the orthologous molecule in hamster, contains a 19 aa signal sequence, a 211 aa extracellular domain (ECD), a 30 aa transmembrane segment, and a 141 aa cytoplasmic tail (2, 3). The ECD of mouse Layilin shares 85%, 70%, and 77% aa sequence identity with that of hamster, rat, and human Layilin, respectively. The ECD includes one carbohydrate recognition domain that contains a single potential Ca++-binding site (3). The intracellular region contains three types of LH (Layilin Homology) repeats: three 16 - 18 aa LH1 repeats, three 5 aa LH2 repeats, and one 4 aa LH3 repeat (3). Adjacent LH2-LH3 tandem arrays provide docking sites for the actin cytoskeleton adaptor proteins talin, merlin, and radixin (3, 4, 5). Layilin interacts with the ubiquitous extracellular matrix component hyaluronan but not with heparin, chondroitin sulfate, or N-acetyl glucosamine (6). Layilin is widely expressed and localizes to ruffling edges in spreading and migrating cells (3, 5). It does not localize to focal contacts and does not interact with the focal contact proteins alpha ‑actinin, vinculin, tensin, paxillin, tubulin, or Integrin  beta 1 (3).

  1. McGreal, E.P. et al. (2004) Mol. Immunol. 41:1109.
  2. Genbank Accession # XP_146887.
  3. Borowsky, M.L. and R.O. Hynes (1998) J. Cell Biol. 143:429.
  4. Rees, D.J.G. et al. (1990) Nature 347:685.
  5. Bono, P. et al. (2005) Exp. Cell Res. 308:177.
  6. Bono, P. et al. (2001) Mol. Biol. Cell 12:891.
Entrez Gene IDs
143903 (Human); 244864 (Mouse)
Alternate Names
FLJ30977; FLJ31092; Layilin; LAYN; LYAN


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