CST, 13379T, SIRP alpha/SHPS1 (D6I3M) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying SHPS1. Validated for WB,IHC,IHC,IF,F. Available in 2 sizes. Highly specific and rigorously validated in-house, SIRP alpha/SHPS1 (D6I3M) Rabbit Monoclonal Antibody (CST #13379) is ready to ship. Product Usage Information Western Blotting: 1:1000 IHC Leica Bond: 1:50 - 1:200 Immunohistochemistry (Paraffin): 1:50 - 1:100 Immunofluorescence (Immunocytochemistry): 1:50 - 1:100 Flow Cytometry (Fixed/Permeabilized): 1:50 - 1:200 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 47027 . Protocol Available protocols: Western Blotting, IHC Leica Bond, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry), Flow Cytometry (Fixed/Permeabilized) Specificity / Sensitivity SIRP alpha/SHPS1 (D6I3M) Rabbit Monoclonal Antibody recognizes endogenous levels of total SHPS1 protein. This antibody recognizes both large and small isoforms of murine mSHPS1/SIRPα. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro413 of human SIRPα/SHPS1 protein. Background SHP-substrate 1 (SHPS1, SIRPα) is a single-pass membrane protein and member of both the immunoglobulin superfamily and the signal regulatory protein (SIRP) family. Following growth hormone stimulation or integrin binding, SHPS1 is phosphorylated at several tyrosine residues within its cytoplasmic tail. These phosphorylation events promote association between SHPS1 and multiple signaling proteins, including SHP-1, SHP-2, Grb2 and Shc via their SH2 domains (1-4). Recruitment of SHP-1 and SHP-2 results in SHPS1 dephosphorylation and suppression of tyrosine kinase signaling (1-3,5). The tyrosine kinase JAK2 associates with SHPS1 via its carboxy terminus and phosphorylates SHPS1 in response to extracellular stimuli (5). Research studies show that Src associates with and may phosphorylate SHPS1 in response to insulin (4). In macrophages, SHPS1 can form a complex with the Src pathway adaptor protein SKAP2, Fyn-binding protein FYB, and the tyrosine kinase PYK2 (6). The SHPS1 extracellular domain contains at least three IgG-like domains that interact with CD47, a ubiquitously expressed, integrin-associated protein that acts as a repressive cue in both immune and neuronal cells (7,8). The interaction between CD47 and SHPS1 on opposing cells can inhibit cellular migration (9), promote "tethering" between macrophages and target cells during engulfment (10), facilitate self versus non-self recognition (11), and maintain immune homeostasis (12). SHPS1 plays a critical role in modulating the immune response and inflammation, and may play a role in neuronal development (13,14). The interaction between SHPS1 and CD47 may be an exploitable target in cancer therapy (15-17). Alternate Names BIT; Brain Ig-like molecule with tyrosine-based activation motifs; brain-immunoglobulin-like molecule with tyrosine-based activation motifs; CD172 antigen-like family member A; CD172A; Inhibitory receptor SHPS-1; Macrophage fusion receptor; MFR; MYD-1; MyD-1 antigen; MYD1; p84; protein tyrosine phosphatase, non-receptor type substrate 1; PTPNS1; SHP substrate 1; SHP substrate-1; SHPS-1; SHPS1; signal regulatory protein alpha; signal regulatory protein, alpha type 1; signal regulatory protein, alpha type 2; signal-regulatory protein alpha; Signal-regulatory protein alpha-1; Signal-regulatory protein alpha-2; Signal-regulatory protein alpha-3; SIRP; Sirp-alpha-1; Sirp-alpha-2; Sirp-alpha-3; SIRPA; SIRPalpha; SIRPalpha2; tyrosine phosphatase SHP substrate 1; Tyrosine-protein phosphatase non-receptor type substrate 1 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 85 (human, monkey), 100 (rat), 120 (murine isoform 1), 55 (murine isoform 2) Source/Isotype: Rabbit IgG