2 μg/lane of Recombinant Human CD37 Fc Chimera (Catalog # 10160-CD) was resolved withSDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing major bands at ...read more
Recombinant Human CD37 Fc Chimera Protein, CF Summary
Details of Functionality
Measured by its binding ability in a functional ELISA. When Recombinant Human CD37 Fc Chimera (Catalog # 10160-CD) is
immobilized at 10 μg/mL
(100 μL/well), the concentration of Biotinylated Recombinant Human CD19 Fc Chimera Avi-tag
that produces 50% of the optimal binding response is 5-25 μg/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human CD37 protein
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
42 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
54-63 kDa, under reducing conditions
Publications
Read Publication using 10160-CD in the following applications:
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 with Trehalose.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 500 μg/mL in PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human CD37 Fc Chimera Protein, CF
CD37 antigentetraspanin-26
CD37 molecule
CD37
cell differentiation antigen 37
GP52-40
leukocyte antigen CD37
MGC120234
Tetraspanin-26
TSPAN26
tspan-26
TSPAN26leukocyte surface antigen CD37
Background
CD37,
also known as TSPAN26, is a 40‑45 kDa palmitoylated traspanin superfamily
glycoprotein that is mainly expressed by B cell lymphocytes and myeloid cells
(1). Tetraspanins are characterized by four transmembrane domains, one small
extracellular loop (SEL) and one large extracellular loop (LEL), and short N-
and C-termini (1). The CD37-LEL has the most variation across these different
domains, but a CCG motif and the position of the last cysteine
residue in the LEL are conserved in all tetraspanins (2). Tetraspanins
form complexes with a wide range of transmembrane and cytoplasmic proteins,
including integrins, forming small networks referred to as tetraspanin enriched
microdomains, or TEMs (1). Human CD37-LEL shares 66% amino acid sequence identity with
mouse and rat CD37. CD37 directly associates with dectin-1 on macrophages and
stabilizes cell surface dectin-1 expression (3). It
also inhibits T cell activation and proliferation by limiting T cell receptor
signaling (4). Mice deficient in CD37 develop B cell lymphoma (5). Kidneys of CD37-/- mice showed more mesangial
proliferation, endothelial cell activation, podocyte activation, and segmental
podocyte foot process effacement compared to the CD37/Il6 double-knockout mice,
emphasizing that IL-6 mediates renal pathology in CD37-/- mice. Thus, CD37 may
protect against IgA nephropathy by inhibition of the IL-6 pathway (6).
Charrin, S. et al. (2002) FEBS Lett. 516:139.
Berditchevski, Fedor. (2001) J. Cell. Sci. 114:4143.
Meyer-Wentrup, F. et al. (2007) J Immunol. 178:154.
van Spriel, A.B. et al. (2004) J Immunol 172:2953.
de Winde, C.M. et al. (2016) J Clin Invest. 126:653.
CD81/TAPA1: I'm on Tapa the Cell Target of the antiproliferative 1 (TAPA1), also known as CD81, is found in the plasma membrane in lymphocytes and plays an important role in the regulation of lymphoma cell growth. This transmembrane 4 superfamily (TM4SF) protein is primarily found on... Read full blog post.
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