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Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

IHC-Bond, IHC-P

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

Source/Isotype:

Mouse IgG2a

UniProt ID:

#P20023

Entrez-Gene Id:

1380

Product Information

Product Usage Information

Application Dilution
IHC Leica Bond 1:200 - 1:800
Immunohistochemistry (Paraffin) 1:50 - 1:200

Storage

Supplied as liquid tissue culture supernatant containing sodium azide as a preservative. Stable for 6 months when stored at 4°C. Do not aliquot the antibody.

Specificity / Sensitivity

CD21/CR2 (2G9) Mouse mAb recognizes endogenous levels of CD21/CR2 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a prokaryotic recombinant protein corresponding to the external domain of human CD21/CR2 protein.

Background

Complement receptor type 2 (CD21/CR2) is a type 1 transmembrane glycoprotein whose expression is largely restricted to B lymphocytes and follicular dendritic cells (1,2). Research studies have shown that CD21/CR2 functions to bind the complement fragments iC3b, C3dg, and C3d, which function to activate the alternative complement pathway and MAC formation (3,4). In addition to its function as a complement receptor, CD21/CR2 also functions as the B lymphocyte receptor for Epstein-Barr virus (5) and interferon alpha (6). Research studies have also shown that CD21/CR2 participates in B cell activation, proliferation, and protection from apoptosis through its association with components of the B cell coreceptor signaling complex such as CD19 and CD21 (7-9).

  1. Nadler, L.M. et al. (1981) J Immunol 126, 1941-7.
  2. Reynes, M. et al. (1985) J Immunol 135, 2687-94.
  3. Weis, J.J. et al. (1984) Proc Natl Acad Sci U S A 81, 881-5.
  4. Nielsen, C.H. et al. (2001) Immunology 104, 418-22.
  5. Fingeroth, J.D. et al. (1984) Proc Natl Acad Sci U S A 81, 4510-4.
  6. Asokan, R. et al. (2006) J Immunol 177, 383-94.
  7. Tedder, T.F. et al. (1994) Immunol Today 15, 437-42.
  8. Fearon, D.T. and Carter, R.H. (1995) Annu Rev Immunol 13, 127-49.
  9. Mongini, P.K. et al. (2003) J Immunol 171, 5244-54.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

IHC-Bond: IHC Leica Bond IHC-P: Immunohistochemistry (Paraffin)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

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