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MABS1147 Sigma-Aldrich

Anti-SH2D1A Antibody, clone SuGr-20 18A9

Anti-SH2D1A Antibody, clone SuGr-20 18A9 is an antibody against SH2D1A for use in Western Blotting.

Synonym: SH2 domain-containing protein 1A, Duncan disease SH2-protein, Signaling lymphocytic activation molecule-associated protein, SLAM-associated protein, T-cell signal transduction molecule SAP

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, Primary Antibodies, SG-SK
clone   SuGr-20 18A9, monoclonal
biological source   mouse
application(s)   western blot: suitable
species reactivity   human
shipped in   wet ice
isotype   IgG2bκ
Quality Level   100
antibody product type   primary antibodies
NCBI accession no.   NP_002342
UniProt accession no.   O60880
Gene Information   human ... SH2D1A(4068)


General description

SH2 domain-containing protein 1A (UniProt O60880; also known as Duncan disease SH2-protein, Signaling lymphocytic activation molecule-associated protein, SLAM-associated protein, T-cell signal transduction molecule SAP) is encoded by the SH2D1A (also known as DSHP, SAP, XLP, XLP1, XLPD) gene (Gene ID 4068) in human. 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.


Clone SuGr-20 18A9 recognizes recombinant full-length human SH2D1A spliced isoform A (UniProt O60880-1) by Western blotting. Reactivity toward spliced isoforms B to F (UniProt O60880-2 to O60880-6) has not been determined.


Recombinant full-length human SH2D1A.


Research Category

Research Sub Category
Immunological Signaling

Target description

~14 kDa observed. 14.19 kDa calculated.

Physical form

Format: Purified

Protein G Purified

Purified mouse monoclonal IgG2bκ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


Evaluated by Western Blotting of recombinant human SH2D1A.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected 0.1 µg of recombinant human SH2D1A.

Other Notes

Concentration: Please refer to lot specific datasheet.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


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