SIRP alpha Active Protein | SIRPA active protein

SIRP alpha Protein, Human, Recombinant (ECD, hFc Tag)

Cat. Num. AAA8120878

• Gene Names: SIRPA; BIT; MFR; P84; SIRP; MYD-1; SHPS1; CD172A; PTPNS1
• Purity: >95% as determined by SDS-PAGE
• Synonyms: SIRP alpha; SIRP alpha Protein; Human; Recombinant (ECD; hFc Tag); Human SIRP alpha Protein (ECD; Fc Tag); BIT Protein; CD172A Protein; MFR Protein; MYD-1 Protein; P84 Protein; PTPNS1 Protein; SHPS1 Protein; SIRP Protein; signal-regulatory protein alpha; SIRPA active protein

• Host: HEK293 Cells
• Purity/Purification: >95% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Met1-Arg370

• Species: Human
• Endotoxin: <1.0EU per ug protein as determined by the LAL method.
• Predicted N Terminal: Glu 31
• Tag: C-human IgG1-Fc
• Protein Construction: A DNA sequence encoding the human SIRPA (NP_542970.1)(Met1-Arg370) was expressed with the Fc region of human IgG1 at the C-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Activity: Measured by its binding ability in a functional ELISA. Immobilized human CD47-His at 2ug/ml (100uL/well) can bind human SIRPA-Fc. The EC50 of human SIRPA-Fc is 3-15ng/mL.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

SDS-Page

Testing Data

(Measured by its binding ability in a functional ELISA. Immobilized human CD47-His at 2 ug/ml (100 ul/well) can bind human SIRPA-Fc, the EC50 of human SIRPA-Fc is 3-15 ng/mL.)

Related Product Information for SIRPA active protein

Background: Tyrosine-protein phosphatase non-receptor type substrate 1, also known as SHP substrate 1, Inhibitory receptor SHPS-1, Brain Ig-like molecule with tyrosine-based activation motifs, Macrophage fusion receptor, CD172 antigen-like family member A, SIRPA and CD172a, is a single-pass type I membrane protein which contains two Ig-like C1-type (immunoglobulin-like) domains and one Ig-like V-type (immunoglobulin-like) domain. SIRPA is ubiquitously expressed. It is highly expressed in brain and detected at lower levels in heart, placenta, lung, testis, ovary, colon, liver, small intestine, prostate, spleen, kidney, skeletal muscle and pancreas. It is also detected on myeloid cells, but not T-cells. SIRPA is an immunoglobulin-like cell surface receptor for CD47. SIRPA acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. SIRPA supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. It may play a key role in intracellular signaling during synaptogenesis and in synaptic function. SIRPA is involved in the negative regulation of receptor tyrosine kinase-coupled cellular responses induced by cell adhesion, growth factors or insulin. It mediates negative regulation of phagocytosis, mast cell activation and dendritic cell activation.

Product Categories/Family for SIRPA active protein

Cancer Drug Targets

References

Timms JF. et al., 1999, Curr Biol. 9: 927-30. Stofega MR. et al., 2000, J Biol Chem. 275: 28222-9. Liu T. et al., 2005, J Proteome Res. 4: 2070-80. Wolf-Yadlin A. et al., 2007, Proc Natl Acad Sci. 104: 5860-5.

NCBI and Uniprot Product Information

• NCBI GI #: 18426911
• NCBI GeneID: 140885
• NCBI Accession #: NP_542970.1
• NCBI GenBank Nucleotide #: NM_080792.2
• UniProt Accession #: P78324; O00683; O43799; Q8N517; Q8TAL8; Q9H0Z2; Q9UDX2; Q9UIJ6; Q9Y4U9; A2A2E1; A8K411
• Molecular Weight: 54,967 Da
• NCBI Official Full Name: tyrosine-protein phosphatase non-receptor type substrate 1
• NCBI Official Synonym Full Names: signal-regulatory protein alpha
• NCBI Official Symbol: SIRPA
• NCBI Official Synonym Symbols: BIT; MFR; P84; SIRP; MYD-1; SHPS1; CD172A; PTPNS1
• NCBI Protein Information: tyrosine-protein phosphatase non-receptor type substrate 1; myd-1 antigen; OTTHUMP00000030001; OTTHUMP00000159968; OTTHUMP00000159969; inhibitory receptor SHPS-1; macrophage fusion receptor; CD172 antigen-like family member A; tyrosine phosphatase SHP sub
• UniProt Protein Name: Tyrosine-protein phosphatase non-receptor type substrate 1
• Protein Family: Tyrosine-protein phosphatase non-receptor
• UniProt Gene Name: SIRPA
• UniProt Synonym Gene Names: BIT; MFR; MYD1; PTPNS1; SHPS1; SIRP; SHP substrate 1; SHPS-1; Bit; Sirp-alpha-1; Sirp-alpha-2
• UniProt Entry Name: SHPS1_HUMAN

NCBI Description

The protein encoded by this gene is a member of the signal-regulatory-protein (SIRP) family, and also belongs to the immunoglobulin superfamily. SIRP family members are receptor-type transmembrane glycoproteins known to be involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. This protein can be phosphorylated by tyrosine kinases. The phospho-tyrosine residues of this PTP have been shown to recruit SH2 domain containing tyrosine phosphatases (PTP), and serve as substrates of PTPs. This protein was found to participate in signal transduction mediated by various growth factor receptors. CD47 has been demonstrated to be a ligand for this receptor protein. This gene and its product share very high similarity with several other members of the SIRP family. These related genes are located in close proximity to each other on chromosome 20p13. Multiple alternatively spliced transcript variants have been determined for this gene. [provided by RefSeq]

Uniprot Description

SHPS1: Immunoglobulin-like cell surface receptor for CD47. Acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. Supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. May play a key role in intracellular signaling during synaptogenesis and in synaptic function. Involved in the negative regulation of receptor tyrosine kinase-coupled cellular responses induced by cell adhesion, growth factors or insulin. Mediates negative regulation of phagocytosis, mast cell activation and dendritic cell activation. CD47 binding prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells. Binds PTPN11 when tyrosine-phosphorylated, except in macrophages, where it primarily binds PTPN6. Binds GRB2 in vitro. Binds FGR. Binds JAK2 irrespective of its phosphorylation status and forms a stable complex. Binds SCAP1 and/or SCAP2. The resulting complex recruits FYB. Binds PTK2B. Ubiquitous. Highly expressed in brain. Detected on myeloid cells, but not T-cells. Detected at lower levels in heart, placenta, lung, testis, ovary, colon, liver, small intestine, prostate, spleen, kidney, skeletal muscle and pancreas. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Cell surface; Motility/polarity/chemotaxis; Cell adhesion; Receptor, misc.; Membrane protein, integral

Chromosomal Location of Human Ortholog: 20p13

Cellular Component: membrane; integral to membrane; plasma membrane

Molecular Function: SH3 domain binding

Biological Process: blood coagulation; cell adhesion; leukocyte migration