Product Information

Contents: Alexa Fluor® 647 anti-mouse SIGN-R1 (C-type lectin a.k.a. CD209b)
Catalog Number: 51-2093
Sizes: 25 ug, 100 ug
Formulation: Phosphate buffered saline, pH 7.2, less than or equal to 0.09% NaN₃, BSA and/or gelatin for protein stabilization
Storage Conditions: Store at 4°C.
DO NOT FREEZE.
LIGHT-SENSITIVE MATERIAL.
Clone: eBio22D1 (22D1)
Isotype: Armenian Hamster IgG

Staining of C57Bl/6 splenocytes with PE anti-mouse CD11b (M1/70) (cat. 12-0112) and 0.5 μg of Alexa Fluor® 647 Armenian Hamster IgG Iso Cntrl (cat. 51-4888) (left) or 0.5 μg of Alexa Fluor® 647 anti-mouse SIGN-R1 (eBio22D1) (right). Cells in the lymphocyte and monocyte gates were used for analysis.

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
51-2093	Alexa Fluor® 647 anti-mouse SIGN-R1 (C-type lectin, CD209b)	633	668	FC
14-2093	Affinity Purified anti-mouse SIGN-R1 (C-type lectin, CD209b)	N/A	N/A	ELISA FA FC IH/F IP
16-2093	Functional Grade* Purified anti-mouse SIGN-R1 (C-type lectin, CD209b)	N/A	N/A	ELISA FA FC IH/F IP
*Functional Grade™ (FG™) Purified: Azide-free, sterile-filtered, and endotoxin < 0.001 ng/µg (unless otherwise noted). *Functional Grade™ (FG™) Biotin: Azide-free, sterile-filtered, and endotoxin < 0.05 ng/µg. Purified: Contains azide, not sterile-filtered, and not endotoxin tested.

Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq.

Description

The eBio22D1 monoclonal antibody reacts with mouse SIGNR1 (CD209b). SIGNR1 is a type II transmembrane C-type lectin that was identified in a search for mouse homologues of human DC-SIGN. It is expressed at high levels in splenic marginal zone macrophages and lymph node medullary macrophages, where it functions to uptake dextran polysaccharides, including the capsular polysaccharide of Streptococcus pneumoniae. It has also been demonstrated that SIGNR1 physically associates with TLR4/MD2, and it has been suggested that this association plays a role in recognition of LPS. Furthermore, recently it has been shown that SIGNR1 deficient mice have a defect in catabolism of the complement component C3, and that SIGNR1 binds directly to the complement C1 subcomponent, C1q to assemble a non-conventional C3 convertase. The eBio22D1 monoclonal antibody does not cross-react with the closely related SIGNR1, SIGNR2, SIGNR3 or SIGNR4.

Applications Reported

For research use only, not for diagnostic or therapeutic use. This eBio22D1 (22D1) antibody has been reported for use in flow cytometric analysis.

Applications Tested

This eBio22D1 (22D1) antibody has been tested by flow cytometric analysis of mouse splenocytes. This can be used at less than or equal to 1 μg per million cells in a 100 μl total staining volume. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

References

Kang YS, Kim JY, Bruening SA, Pack M, Charalambous A, Pritsker A, Moran TM, Loeffler JM, Steinman RM, Park CG. The C-type lectin SIGN-R1 mediates uptake of the capsular polysaccharide of Streptococcus pneumoniae in the marginal zone of mouse spleen. Proc Natl Acad Sci U S A. 2004 Jan 6;101(1):215-20. (22D1, FC, FA, IHC, PubMed)

Kang YS, Do Y, Lee HK, Park SH, Cheong C, Lynch RM, Loeffler JM, Steinman RM, Park CG. A dominant complement fixation pathway for pneumococcal polysaccharides initiated by SIGN-R1 interacting with C1q. Cell. 2006 Apr 7;125(1):47-58. (22D1, IHC, FA, PubMed)

Kang YS, Yamazaki S, Iyoda T, Pack M, Bruening SA, Kim JY, Takahara K, Inaba K, Steinman RM, Park CG. SIGN-R1, a novel C-type lectin expressed by marginal zone macrophages in spleen, mediates uptake of the polysaccharide dextran. Int Immunol. 2003 Feb;15(2):177-86.

Nagaoka K, Takahara K, Tanaka K, Yoshida H, Steinman RM, Saitoh S, Akashi-Takamura S, Miyake K, Kang YS, Park CG, Inaba K. Association of SIGNR1 with TLR4-MD-2 enhances signal transduction by recognition of LPS in gram-negative bacteria. Int Immunol. 2005 Jul;17(7):827-36.

Related Products

Cat. 51-4888 Alexa Fluor® 647 Armenian Hamster IgG Isotype Control (clone eBio299Arm)

Alexa Fluor® and Pacific Blue® are registered trademarks of and licensed under patents assigned to Molecular Probes, Inc. for research use only. This product is subject to an agreement between Molecular Probes, Inc. and eBioscience, and the manufacture, use, sale or import of this product may be subject to one or more U.S. patents, pending applications and corresponding foreign equivalents, owned by Molecular Probes, Inc. (a wholly owned subsidiary of Invitrogen Corp). The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product for life science research or as an ASR. The buyer cannot use this product for manufacturing or for any other screening (specifically including use in combination with microarrays or High Content Screening) or testing purpose, other than as an ASR. For information on purchasing a license to this product for purposes other than life science research or use as an ASR, contact Molecular Probes, Inc.