Recombinant Human Cerebellin-1 Protein, CF Summary
Glu22-Leu193, with an N-terminal HA (YPYDVPDYA) tag
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.
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 250 μg/mL in 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.
Cerebellin-1 (CBLN1) is a 35 kDa secreted glycoprotein in the Cerebellin family of TNF superfamily molecules (1). Cerebellins contain an N‑terminal collagenous domain and a C-terminal TNF/C1q-like domain. Mature human Cerebellin-1 shares 100% aa sequence identity with mouse and rat Cerebellin-1. It is expressed in the cerebellum, the parafascicular nucleus of the thalamus, and in the adrenal cortex and pancreatic islets (2 - 5). Cerebellin-1 forms noncovalent homotrimers that are disulfide-linked into hexamers (6). It can also form hetero-oligomers with Cerebellins-2, -3, and -4 and is required for the secretion of Cerebellin-3 (7 - 9). Cerebellin-1 is subject to proteolysis which can liberate 15-mer or 16-mer bioactive peptides from the C1q domain or remove the regions necessary for trimer or hexamer formation (6). Formation of the hexamer is required for Cerebellin-1’s ability to bind to synaptic structures (9, 10). It binds to postsynaptic densities through direct interactions with the glutamate receptor subunit GluRδ2 and to presynaptic membranes through direct interactions with alpha and beta Neurexins that contain the SS4 insert (11 - 14). The trans-synaptic trimolecular complex of GluRδ2, Cerebellin-1, and Neurexin promotes both presynaptic and postsynaptic development (11, 12). Cerebellin-1 itself is required for synaptic development, maintenance, and function (10, 12 - 15). It can also be internalized by Purkinje cells following secretion by cerebellar granule cells (2, 8, 15). The 16-mer and 15-mer peptides derived from Cerebellin-1 exert multiple endocrine effects including promoting corticosteroid secretion by cortical adrenal cells, inhibiting glucose‑stimulated insulin secretion from pancreatic islets, promoting Neuropeptide Y secretion by the hypothalamus, and decreasing plasma thyroid stimulating hormone (TSH) levels (4, 5, 16).
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Citations for Recombinant Human Cerebellin-1 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.
Citations: Showing 1 - 2
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Dysfunction of Glutamate Delta-1 Receptor-Cerebellin 1 Trans-Synaptic Signaling in the Central Amygdala in Chronic Pain
Authors: PJ Gandhi, DY Gawande, GP Shelkar, SG Gakare, T Kiritoshi, G Ji, B Misra, R Pavuluri, J Liu, V Neugebauer, SM Dravid
Sample Types: In Vivo
Applications: In Vivo
Defining the ligand specificity of the deleted in colorectal cancer (DCC) receptor.
Authors: Haddick P, Tom I, Luis E, Quinones G, Wranik B, Ramani S, Stephan J, Tessier-Lavigne M, Gonzalez L
PLoS ONE, 2014;9(1):e84823.
Sample Types: Recombinant Protein
Applications: Surface Plasmon Resonance
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