Mouse Semaphorin 4A Antibody

Catalog #: MAB8166
1 Citation Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB8166
MAB8166-SP

Detection of Semaphorin 4A in HEK293 Human Cell Line Transfected with Mouse Semaphorin 4A and eGFP by Flow Cytometry.

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Mouse Semaphorin 4A Antibody Summary

Species Reactivity

Mouse

Specificity

Detects mouse Semaphorin 4A in ELISA. Stains HEK293 cells transfected with mouse Semaphorin 4A by Flow Cytometry, but does not stain untrasfected cells.

Source

Monoclonal Rat IgG₁ Clone # 757129

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant mouse Semaphorin 4A
Thr33-Trp638
Accession # Q62178

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Flow Cytometry

2.5 µg/10⁶ cells

See below

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Neutralization

Delgoffe, G. et al. (2013) Nature 501:252.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of Semaphorin 4A in HEK293 Human Cell Line Transfected with Mouse Semaphorin 4A and eGFP by Flow Cytometry. HEK293 human embryonic kidney cell line transfected with mouse Semaphorin 4A and eGFP was stained with either (A) Rat Anti-Mouse Semaphorin 4A Monoclonal Antibody (Catalog # MAB8166) or (B) Rat IgG₁Isotype Control (Catalog # MAB005) followed by Allophycocyanin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0113).

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Semaphorin 4A

Semaphorin 4A (Sema4A, previously semB) is type I transmembrane protein that is a Class 4 transmembrane Semaphorin with activity in the immune and nervous systems. It is expressed by dendritic cells, monocytes, T cells, B cells, astrocytes and oligodendrocytes, plus visceral smooth muscle and bronchial epithelial cells. The 760 amino acid (aa) mouse Sema4A contains a 650 aa extracellular domain (ECD, aa 33-682) with Sema, PSI and C2-type immunoglobulin domains. It interacts with B and D1 Plexins and lymphocyte TIM-2, enhancing dendritic cell-mediated T cell priming and Th1 responses. Sema4A interaction with endothelial cell plexin-D1 downregulates the actions of VEGF. Mutations of Sema4A are associated with retinitis pigmentosa and cone rod dystrophy in humans. Mouse Sema4A ECD shares 87% and 94% aa sequence identity with human and rat Sema4A, respectively, and shares approximately 35% aa identity with other Sema4 family members. Using this antibody, Sema4A has been shown to interact with Neuropilin-1 in vitro and in vivo to potentiate Treg cell function and survival.

References

Delgoffe, G.M. et al (2013) Nature 501:252.

Entrez Gene IDs

64218 (Human); 20351 (Mouse); 310630 (Rat)

Alternate Names

CORD10; RP35; Sema B; sema domain, immunoglobulin domain (Ig), transmembrane domain (TM) and shortcytoplasmic domain, (semaphorin) 4A; SEMA4A; SEMAB; Semaphorin 4A; semaphorin-4A; semaphorin-B; SEMB; SEMBFLJ12287

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Citation for Mouse Semaphorin 4A Antibody

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.

1 Citation: Showing 1 - 1

Stability and function of regulatory T cells is maintained by a neuropilin-1-semaphorin-4a axis.
Authors: Delgoffe, Greg M, Woo, Seng-Ryo, Turnis, Meghan E, Gravano, David M, Guy, Cliff, Overacre, Abigail, Bettini, Matthew, Vogel, Peter, Finkelstein, David, Bonnevier, Jody, Workman, Creg J, Vignali, Dario A
Nature, 2013-08-04;501(7466):252-6.