Recombinant Human SLITRK1 Protein, CF

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R&D Systems Recombinant Proteins and Enzymes
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Recombinant Human SLITRK1 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 ability to enhance neurite outgrowth of dissociated E13 chick embryonic dorsal root ganglia (DRG) neurons. Able to significantly enhance neurite outgrowth when immobilized as a 3 µL droplet containing 100 ng on a nitrocellulose-coated microplate.
Mouse myeloma cell line, NS0-derived human SLITRK1 protein
Ala16-Ser616, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Predicted Molecular Mass
68 kDa
100-115 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: SLITRK1

SLITRK1 (Slit and Trk-like family member 1) is a charter member of the SLITRK family of proteins (1, 2). This family includes six members, all of which contain a slit-like extracellular region, and all of which (save for SLITRK1) contain a Trk-like cytoplasmic region (3). Human SLITRK1 is a type I transmembrane protein 696 amino acids (aa) in length. It contains a 17 aa signal sequence, a 605 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 53 aa cytoplasmic region. The ECD is characterized by the presence of two leucine-rich domains (LRD) that resemble those found in slit. Each LRD (aa 57 - 200; aa 374 - 517) contains six leucine-rich repeats (LRRs), followed by a Cys-rich, C-terminal LRR (aa 212 - 262; aa 529 - 579). The exact function of the LRRs is not known. Based on other LRRs, it might be assumed that they mediate protein-protein-interaction (4). There are multiple, single aa mutations in the ECD. Their significance is unclear (5). One truncating frameshift mutation is known that shows a unique 27 aa substitution after Arg 421 (6). This 448 aa form is associated with Tourette’s Syndrome. As noted, the cytoplasmic region is unique among SLITRK family members. It contains no known signaling motifs, which is in contrast to SLITRK2 - 6 which show TrkA-like tyrosine phosphorylation sites. This difference is reflected in their function. SLITRK1 is a protein that is found in adult neurons of the cerebrum, thalamus and hippocampus. It induces neurite outgrowth whereas SLITRK2 - 6 block neurite extension (3). Human SLITRK1 shares 99%, 98% and 99% aa sequence identity with canine, mouse and bovine SLITRK1, respectively.

  1. Aruga, J. et al. (2003) Gene 315:87.
  2. Nagase, T. et al. (2001) DNA Res. 8:179.
  3. Aruga, J. and K. Mikoshiba (2003) Mol. Cell. Neurosci. 24:117.
  4. Enkhbayar, P. et al. (2003) Proteins 54:394.
  5. Zuchner, S. et al. (2006) Mol. Psychiat. 11:888.
  6. Abelson, J.F. et al. (2005) Science 310:317.
Long Name
SLIT and NTRK-like Family, Member 1
Entrez Gene IDs
114798 (Human); 76965 (Mouse)
Alternate Names
FLJ54428; KIAA1910KIAA0918; leucine rich repeat containing 12; Leucine-rich repeat-containing protein 12; LRRC12; RP11-395N17.1; SLIT and NTRK-like family, member 1; SLIT and NTRK-like protein 1; slit and trk like gene 1; SLITRK1; TTM

Citation for Recombinant Human SLITRK1 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.

1 Citation: Showing 1 - 1

  1. Developmentally regulated and evolutionarily conserved expression of SLITRK1 in brain circuits implicated in Tourette syndrome.
    Authors: Stillman AA, Krsnik Z, Sun J, Rasin MR, State MW, Sestan N, Louvi A
    J. Comp. Neurol., 2009;513(1):21-37.


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