Recombinant Human SLITRK5 Protein, CF

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R&D Systems Recombinant Proteins and Enzymes
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Recombinant Human SLITRK5 Protein, CF Summary

Product Specifications

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.01 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 at 3-6 µg/mL.
Mouse myeloma cell line, NS0-derived human SLITRK5 protein
Glu39-Val665, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Predicted Molecular Mass
70.8 kDa
100-120 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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Reconstitution Calculator

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Background: SLITRK5

SLITRK5 (Slit and Trk-like family member 5; also named LRR-containing protein 11) is a member of the SLITRK family of proteins (1, 2). This family currently includes six members, all of which contain a slit-like extracellular region and (save for SLITRK1) a Trk-like cytoplasmic region (3). Human SLITRK5 is a type I transmembrane (TM) protein that is 958 amino acids (aa) in length. It contains a putative 40 aa signal sequence, a 624 aa extracellular domain (ECD), a 21 aa TM segment, and a 273 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 80 - 285 plus aa 384 - 579) contains seven and eight leucine-rich repeats (LRRs), respectively. The exact function of the LRRs is not known. Based on other LRRs, it might be assumed that they mediate protein-protein-interaction (4). The cytoplasmic region contains two conserved, potential phosphorylation sites at Tyr 833 and Tyr 917, plus a TrkA-like tyrosine phosphorylation site (YLxxL) at Tyr 945. SLITRK5 is expressed on embryonic neurons of the hippocampus (pyramidal layer) and thalamus (3). Based on SLITRK2 studies, SLITRK5 will block neurite extension (3). Human SLITRK5 shares 97% and 98% aa identity with mouse and canine SLITRK5, 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.
Long Name
SLIT and NTRK-like Family, Member 5
Entrez Gene IDs
26050 (Human); 75409 (Mouse); 306152 (Rat)
Alternate Names
bA364G4.2; FLJ58374; KIAA0918; leucine-rich repeat-containing protein 11; LRRC11; SLIT and NTRK-like family, member 5; SLIT and NTRK-like protein 5; SLITRK5

Citation for Recombinant Human SLITRK5 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. SLITRK5 is a negative regulator of hedgehog signaling in osteoblasts
    Authors: J Sun, DY Shin, M Eiseman, AR Yallowitz, N Li, S Lalani, Z Li, M Cung, S Bok, S Debnath, SJ Marquez, TE White, AG Khan, IC Lorenz, JH Shim, FS Lee, R Xu, MB Greenblatt
    Nature Communications, 2021;12(1):4611.
    Species: Human
    Sample Types: Whole Cells
    Applications: Surface Plasmon Resonance


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