Recombinant Human L1CAM Fc Chimera Protein, CF

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Recombinant Human L1CAM Fc Chimera Protein, CF Summary

Product Specifications

>90%, 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 the ability of the immobilized protein to support the adhesion of Neuro‑2A mouse neuroblastoma cells. When 5 x 104 cells/well are added to Recombinant Human L1CAM Fc Chimera coated plates (25 µg/mL with 100 µL/well), >30% will adhere for 1 hour incubation at 37 °C.
Optimal dilutions should be determined by each laboratory for each application.
Mouse myeloma cell line, NS0-derived human L1CAM protein
Human L1CAM
(Ile20-Glu1120) & (Arg864‑Glu1120)
Accession # CAA42508
6-His tag
N-terminus C-terminus
Accession #
N-terminal Sequence
Ile20 & Arg864
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
150.4 kDa (monomer) & 55.9 kDa (truncated)
210-225 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 Tris-Citrate and NaCl.
Reconstitution Reconstitute at 200 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.
  • 4 weeks, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

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Background: L1CAM

L1CAM (Neural cell adhesion molecule L1, also known as L1, CD171 and NCAM-L1) is a founding member of the L1 family, Immunoglobulin (Ig) superfamily of molecules (1-4). It was initially described as a 200-230 kDa neural adhesion molecule that likely played a key role in mouse nervous system development (4-6). Subsequent studies have confirmed the adhesive nature of the molecule, and expanded its activities in both neural and nonneural cell types. L1 is now recognized to play a key role in cell migration, adhesion, neurite outgrowth, myelination and neuronal differentiation (1, 7, 8). It does so through a series of cis and trans interactions that involve multiple copartners and target receptors (1, 3, 6, 8). Cells known to express L1 are varied, and include immature oligodendrocytes (9), CD4+ T cells, B cells and monocytes (10), both motor and sensory Schwann cells (11, 12), intestinal epithelial progenitor cells (12), cerebellar granule and Purkinje cells (5, 13, 14), and multiple tumor cells such as melanoma (15) plus pancreatic duct and lung carcinoma cells (16, 17). Human L1 was first identified as a 215 kDa glycoprotein on the surface of SKNAS neuroblastoma cells (18). Subsequent cloning established its precursor as being 1257 amino acids (aa) in length (19, 20). The molecule is a type I transmembrane (TM) protein that contains an 1101 aa extracellular region (aa 20-1120) plus a 114 aa cytoplasmic domain (aa 1144-1257). The extracellular region possesses six C2-type Ig-like domains (aa 35-607) followed by five fibronectin (FN) type III domains (aa 612-1108). As noted, L1 participates in multiple cis and trans interactions, and some of these interaction sites have been mapped to select Ig or FN domains. For instance, Ig-like domains #1, 2 and 6 associate with NP-1, L1 (homotypic binding), and various integrins, respectively (21‑23). The latter interaction is mediated by one (in human) or two (in mouse) RGD motifs (23, 24). Other molecules that heterotypically associate with L1 include NCAM, neurocan, CD24 and EGFR. The cytoplasmic tail contains no kinase motifs, but does possess a FIGQY peptide that interacts with ankyrin, and an RSLE sequence that mediates clathrin-associated endocytosis (1). There are two splice variants, one each in the intracellular and extracellular domains.  A deletion of RSLE adversely affects endocytosis, while a Leu substitution for aa 26-31 interfers with numerous heterotypic interactions (25, 26).  In general, the full-length L1 molecule is a neuron-associated isoform. L1 is known to undergo proteolysis, either by plasmin or ADAMs. This generates soluble isoforms of varying sizes (140-200 kDa) that retain bioactivity, and which can be incorporated into the surrounding ECM (5, 13, 27-30). The membrane fragments (30-80 kDa) undergo further processing, most importantly by gamma -secretase, to generate a soluble 28 kDa intracellular domain. This domain is SUMOylated, and believed to possess an NLS at Lys1147.  Upon presumed entry into the nucleus, L1 is posited to activate L1-responsive genes. Human and mouse L1 precursors share 88% aa sequence identity.

  1. Maness, P.F. and M. Schachner (2007) Nat. Neurosci. 10:19.
  2. Wei, C.H. and S.E. Ryu (2012) Exp. Mol. Med. 44:413.
  3. Faspel, J. and M. Grumet (2003) Front. Biosci. 8:1210.
  4. Herron, L.R. et al. (2009) Biochem. J. 419:519.
  5. Rathjen, F.G. and M. Schachner (1984) EMBO. J. 3:1.
  6. Keifel, H. et al. (2011) Trends Mol. Med. 17:178.
  7. Dihne, M. et al. (2003) J. Neurosci. 23:6638.
  8. Kadmon, G. et al. (1998) Dev. Immunol. 6:205.
  9. Itoh, K. et al. (2000) J. Neurosci. Res. 60:579.
  10. Jouet, M. et al. (1995) Mol. Brain Res. 30:378.
  11. He, Q. et al. (2012) Neurosci. Lett. 521:57.
  12. Thor, G. et al. (1987) EMBO J. 6:2581.
  13. Sadoul, K. et al. (1988) J. Neurochem. 50:510.
  14. Hubbe, M. et al. (1993) Eur. J. Immunol. 23:2927.
  15. Hoja-Lukowicz, D. et al. (2012) Glycoconj J. Apr 29. [Epub ahead of print].
  16. Geismann, C. et al. (2009) Cancer Res. 69:4517.
  17. Tischler, V. et al. (2011) Mol. Cancer 10:127.
  18. Mujoo, K. et al. (1986) J. Biol. Chem. 261:10299.
  19. Kobayashi, M. et al. (1991) Biochim. Biophys. Acta 1090:238.
  20. Hlavin, M.L. and V. Lemmon (1991) Genomics 11:416.
  21. Castellani, V. et al. (2002) EMBO J. 21:6348.
  22. Zhao, X. and C-H Siu (1995) J. Biol. Chem. 270:29413.
  23. Oleszewski, M. et al. (1999) J. Biol. Chem. 274:24602.
  24. Felding-Habermann, B. et al. (1997) J. Cell Biol. 139:1567.
  25. Kamiguchi, H. et al. (1998) J. Neurosci. 18:5311.
  26. De Angelis, E. et al. (2001) J. Biol. Chem. 276:32738.
  27. Montgomery, A.M.P. et al. (1996) J. Cell Biol. 132:475.
  28. Sadoul, R. et al. (1989) J. Neurochem. 53:1471.
  29. Reidle, S. et al. (2009) Biochem. J. 420:391.
  30. Lutz, D. et al. (2012) J. Biol. Chem. 287:17161.
Long Name
Cell Adhesion Molecule L1
Entrez Gene IDs
3897 (Human); 16728 (Mouse); 50687 (Rat)
Alternate Names
antigen identified by monoclonal R1; CAML1; CAML1N-CAML1; CD171 antigen; CD171; HSAS; HSAS1; L1 cell adhesion molecule; L1CAM; MASA; MIC5; N-CAM-L1; NCAM-L1; neural cell adhesion molecule L1; S10; SPG1

Citations for Recombinant Human L1CAM Fc Chimera Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
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  1. Characterization of a novel OTX2-driven stem cell program in Group 3 and Group 4 medulloblastoma
    Authors: M Stromecki, N Tatari, LC Morrison, R Kaur, J Zagozewski, G Palidwor, V Ramaswamy, P Skowron, M Wölfl, T Milde, MR Del Bigio, MD Taylor, TE Werbowetsk
    Mol Oncol, 2018;12(4):495-513.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  2. MMP16 Mediates a Proteolytic Switch to Promote Cell-Cell Adhesion, Collagen Alignment, and Lymphatic Invasion in Melanoma.
    Authors: Tatti O, Gucciardo E, Pekkonen P, Holopainen T, Louhimo R, Repo P, Maliniemi P, Lohi J, Rantanen V, Hautaniemi S, Alitalo K, Ranki A, Ojala P, Keski-Oja J, Lehti K
    Cancer Res, 2015;75(10):2083-94.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Structural requirement of TAG-1 for retinal ganglion cell axons and myelin in the mouse optic nerve.
    Authors: Chatzopoulou E, Miguez A, Savvaki M, Levasseur G, Muzerelle A, Muriel MP, Goureau O, Watanabe K, Goutebroze L, Gaspar P, Zalc B, Karagogeos D, Thomas JL
    J. Neurosci., 2008;28(30):7624-36.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: Bioassay
  4. The L1 cell adhesion molecule is a potential biomarker of human distal nephron injury in acute tubular necrosis.
    Authors: Allory Y, Audard V, Fontanges P, Ronco P, Debiec H
    Kidney Int., 2007;73(6):751-8.
    Species: N/A
    Sample Types: N/A
    Applications: ELISA (Standard)


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Recombinant Human L1CAM Fc Chimera Protein, CF
By Anonymous on 06/17/2019
Application: Immunoassay Standard