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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| M, H | FC, WB | R | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MABF920 |
| Description | Anti-SAP/SH2D1A Antibody, clone 1A9 |
| Alternate Names |
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| Background Information | SH2 domain-containing protein 1A (UniProt O60880; also known as Signaling lymphocytic activation molecule-associated protein, SLAM-associated protein, T-cell signal transduction molecule SAP) is encoded by the Sh2d1a (also known as Xlp) gene (Gene ID 20400) in murine species. SAP/SH2D1A is a 628-amino acid (isoform A) adaptor protein expressed in T cells, natural killer (NK) cells, NK-T cells, and some B cells. SAP/SH2D1A is made up almost exclusively of a Src homology 2 (SH2) domain (a.a. 6-104) and plays an important role in multiple immune cell functions, including T helper 2 (TH2) cytokine production, T cell-dependent antibody production, follicular T helper (TFH) cell differentiation, NK-T cell development, CD8+ T cell- and NK cell-mediated cytotoxicity. SAP couples signaling lymphocytic activation molecule (SLAM) family receptors to tyrosine phosphorylation signals through its interaction with the SH3 domain of Src family protein tyrosine kinase Fyn. In addition, SAP can prevent SH2 domain-containing negative regulators, such as phosphatases SHIP-1 and SHP-1, from inactivating SLAM-related receptors by blocking their interaction with the receptors. Evidence also shows that SAP/SH2D1A regulates T cell-dependent antibody production and TFH cell differentiation independent of Fyn. SAP/SH2D1A gene is mutated and inactivated in X-linked lymphoproliferative disease, a rare human immunodeficiency characterized by an uncontrolled immune response to Epstein-Barr virus infection. |
| Product Information | |
|---|---|
| Format | Purified |
| Presentation | Purified rat monoclonal IgG2aκ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-SAP Antibody, clone 1A9 is an antibody against SH2D1A for use in Flow Cytometry, Western Blotting. |
| Key Applications |
|
| Application Notes | Western Blotting Analysis: A representative lot detected SAP in YT-S human NK cell lysates (Pérez-Quintero, L.A., et al. (2014). J. Exp. Med. 211(4):727-742). Flow Cytometry Analysis: A representative lot immunostained wild-type, but not sh2d1a-knockout, murine peripheral blood CD3+CD4+ lymphocytes (Zhong, M.C., and Veillette, A. (2013). Mol. Cell. Biol. 33(6):1223-1232). Western Blotting Analysis: A representative lot detected SAP, but not EAT-2 or ERT, exogenously expressed in the mouse mature mouse T cell line BI-141 (Roncagalli, R., et al. (2005). Nat. Immunol. 6(10):1002-1010). |
| Biological Information | |
|---|---|
| Immunogen | GST-tagged recombinant full-length mouse SAP. |
| Clone | 1A9 |
| Concentration | Please refer to lot specific datasheet. |
| Host | Rat |
| Specificity | Clone 1A9 reacts with SAP, but not EAT-2 or ERT (Roncagalli, R., et al. (2005). Nat. Immunol. 6(10):1002-1010). Clone 1A9 immunostained wild-type, but not sh2d1a-knockout murine peripheral blood CD3+CD4+ lymphocytes (Zhong, M.C., and Veillette, A. (2013). Mol. Cell. Biol. 33(6):1223-1232). |
| Isotype | IgG2aκ |
| Species Reactivity |
|
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Gene Symbol |
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| Purification Method | Protein G Purified |
| UniProt Number |
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| Molecular Weight | 13.90/13.59 kDa (murine isoform 1/2) and 14.19 kDa (human isoform A) calculated. |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Flow Cytometry in mouse splenocytes. Flow Cytometry Analysis: 0.1 µg of this antibody detected SAP/SH2D1A in mouse splenocytes. |
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at 2-8°C from date of receipt. |
| Packaging Information | |
|---|---|
| Material Size | 100 μg |