Recombinant Mouse SorCS3 Protein, CF

• Reactivity: Mu
• Applications: Binding Activity
• Format: Carrier-Free

Recombinant Mouse SorCS3 Protein, CF Summary

• Details of Functionality: Measured by its binding ability in a functional ELISA. Immobilized rmSorCS3 at 1 µg/mL (100 µL/well) can bind rh beta -NGF with an apparent K_D <75 nM.
• Source: Mouse myeloma cell line, NS0-derived mouse SorCS3 protein
  Ala131-Ser1122, with a C-terminal 6-His tag
• Accession #: Q8VI51
• N-terminal Sequence: Ala131
• Protein/Peptide Type: Recombinant Proteins
• Gene: Sorcs3
• Purity: >95%, by SDS-PAGE under reducing conditions and visualized by silver stain
• Endotoxin Note: <0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

• Dilutions:
  • Binding Activity
• Theoretical MW: 104 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
• SDS-PAGE: 128-132 kDa, reducing conditions

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS.
• Purity: >95%, by SDS-PAGE under reducing conditions and visualized by silver stain
• Reconstitution Instructions: Reconstitute at 100 μg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse SorCS3 Protein, CF

• 6330404A12Rik
• KIAA1059SORCS
• SorCS3
• sortilin-related VPS10 domain containing receptor 3
• VPS10 domain receptor protein SORCS 3 (SORCS3)
• VPS10 domain-containing receptor SorCS3

Background

SorCS3 is a type I transmembrane receptor of the mammalian Vps10p (vacuolar protein-sorting 10 protein) family of receptors that includes sortilin, SorLA, and three SorCS proteins (1, 2). It is synthesized as a 1219 amino acid (aa) preproform with a 33 aa signal sequence and a 100 aa propeptide. After proteolytic release of the propeptide at a furin-type consensus sequence, the mature SorCS3 is a 1086 aa, 100 - 110 kDa protein with a 992 aa extracellular/lumenal domain (ECD), a 21 aa transmembrane domain and a 73 aa cytoplasmic domain. Mouse SorCS3 ECD shares 98%, 92%, 91% and 89% aa identity with rat, human, bovine and canine SorCS3 ECD, respectively. It also shares 65% and 44% aa identity with mouse SorCS1 and SorCS2 ECD, respectively. The ECD contains an imperfect leucine-rich repeat (LRR) and a Vps10p domain that binds both pro- and mature NGF (2, 3). The metalloproteinase TACE/ADAM17 is able to cleave SorCS3 near the membrane either constitutively, or at an increased rate when induced by phorbol esters (4). The shed ECD is able to bind PDGF-BB and the NGF propeptide (4). Unlike sortilin, the SorCS3 propeptide has no known function; it does not block NGF binding or propeptide cleavage (3, 5). SorCS3 is predominantly expressed on the plasma membrane (3). It can be slowly internalized but, despite the presence of a sorting domain, there is no evidence for SorCS3-mediated intracellular trafficking activity (3). It is expressed in the embryonic and adult central nervous system in areas distinct from that of SorCS1 and SorCS2 (1). Neuronal activity upregulates SorCS3 expression in the hippocampus (1).

1. Hermey, G. et al. (2004) J. Neurochem. 88:1470.
2. Hampe, W. et al. (2001) Hum. Genet. 108:529.
3. Westergaard, U. B. et al. (2005) FEBS Lett. 579:1172.
4. Hermey, G. et al. (2006) Biochem. J. 395:285.
5. Westergaard, U. et al. (2004) J. Biol. Chem. 279:50221.

Bioinformatics

• Gene Symbol: Sorcs3
• Uniprot:
  • Q8VI51()