The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 1 - 5 µg/ml.
FunctionFunctions as a sorting receptor in the Golgi compartment and as a clearance receptor on the cell surface. Required for protein transport from the Golgi apparatus to the lysosomes by a pathway that is independent of the mannose-6-phosphate receptor (M6PR). Also required for protein transport from the Golgi apparatus to the endosomes. Promotes neuronal apoptosis by mediating endocytosis of the proapoptotic precursor forms of BDNF (proBDNF) and NGFB (proNGFB). Also acts as a receptor for neurotensin. May promote mineralization of the extracellular matrix during osteogenic differentiation by scavenging extracellular LPL. Probably required in adipocytes for the formation of specialized storage vesicles containing the glucose transporter SLC2A4/GLUT4 (GLUT4 storage vesicles, or GSVs). These vesicles provide a stable pool of SLC2A4 and confer increased responsiveness to insulin. May also mediate transport from the endoplasmic reticulum to the Golgi.
Tissue specificityExpressed at high levels in brain, spinal cord, heart, skeletal muscle, thyroid, placenta and testis. Expressed at lower levels in lymphoid organs, kidney, colon and liver.
Involvement in diseaseNote=A common polymorphism located in a non-coding region between CELSR2 and PSRC1 alters a CEBP transcription factor binding site and is responsible for changes in hepatic expression of SORT1. Altered SORT1 expression in liver affects low density lipoprotein cholesterol levels in plasma and is associated with susceptibility to myocardial infarction.
Sequence similaritiesBelongs to the VPS10-related sortilin family. SORT1 subfamily. Contains 9 BNR repeats.
DomainThe N-terminal propeptide may facilitate precursor transport within the Golgi stack. Intrachain binding of the N-terminal propeptide and the extracellular domain may also inhibit premature ligand binding. The extracellular domain may be shed following protease cleavage in some cell types.
Post-translational modificationsThe N-terminal propeptide is cleaved by furin and possibly other homologous proteases.
Cellular localizationMembrane. Endoplasmic reticulum membrane. Endosome membrane. Golgi apparatus > Golgi stack membrane. Lysosome membrane. Nucleus membrane. Cell membrane. Lysosome membrane. Localized to membranes of the endoplasmic reticulum, endosomes, Golgi stack, lysosomes and nucleus. A small fraction of the protein is also localized to the plasma membrane. May also be found in SLC2A4/GLUT4 storage vesicles (GSVs) in adipocytes. Localization to the plasma membrane in adipocytes may be enhanced by insulin.
Lane 1: Wild-type HAP1 cell lysate (20 µg) Lane 2: Sortilin knockout HAP1 cell lysate (20 µg) Lane 3: SW480 cell lysate (20 µg) Lane 4: HeLa cell lysate (20 µg) Lanes 1 - 4: Merged signal (red and green). Green - ab57672 observed at 100 kDa. Red - loading control, ab181602, observed at 37 kDa. ab57672 was shown to recognize Sortilin when Sortilin knockout samples were used, along with additional cross-reactive bands. Wild-type and Sortilin knockout samples were subjected to SDS-PAGE. ab57672 and ab181602 (loading control to GAPDH) were diluted to 1 µg/ml and 1/2000 respectively and incubated overnight at 4°C. Blots were developed with goat anti-rabbit IgG (H + L) and goat anti-mouse IgG (H + L) secondary antibodies at 1/10 000 dilution for 1 h at room temperature before imaging.
Western blot - Sortilin antibody (ab57672)
Western blot against tagged recombinant protein immunogen using ab57672 Sortilin antibody at 1ug/ml. Predicted band size of immunogen is 37 kDa
References for Anti-Sortilin antibody (ab57672)
has not yet been referenced specifically in any publications.
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