AB232765

Anti-SIRP alpha antibody

Name: Anti-SIRP alpha antibody (ab232765) | Abcam
Brand: Abcam Limited
SKU: AB232765
Price: 525 USD
Availability: InStock

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(1 Publication)

Rabbit Polyclonal SIRP alpha antibody. Suitable for WB, IHC-P and reacts with Human, Recombinant full length protein - Human, Pig samples. Cited in 1 publication. Immunogen corresponding to Recombinant Fragment Protein within Human SIRPA aa 100-350.

View Alternative Names

CD172a, BIT, MFR, MYD1, PTPNS1, SHPS1, SIRP, SIRPA, Tyrosine-protein phosphatase non-receptor type substrate 1, SHP substrate 1, SHPS-1, Brain Ig-like molecule with tyrosine-based activation motifs, CD172 antigen-like family member A, Inhibitory receptor SHPS-1, Macrophage fusion receptor, MyD-1 antigen, Signal-regulatory protein alpha-1, Signal-regulatory protein alpha-2, Signal-regulatory protein alpha-3, p84, Bit, Sirp-alpha-1, Sirp-alpha-2, Sirp-alpha-3

6 Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Formalin-fixed, paraffin-embedded human stomach tissue stained for SIRP alpha using ab232765 at 20 μg/ml in immunohistochemical analysis. DAB staining.

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Formalin-fixed, paraffin-embedded human liver tissue stained for SIRP alpha using ab232765 at 20 μg/ml in immunohistochemical analysis. DAB staining.

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Formalin-fixed, paraffin-embedded human breast cancer tissue stained for SIRP alpha using ab232765 at 20 μg/ml in immunohistochemical analysis. DAB staining.

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Formalin-fixed, paraffin-embedded human cerebrum tissue stained for SIRP alpha using ab232765 at 20 μg/ml in immunohistochemical analysis. DAB staining.

Supplier Data

Western blot - Anti-SIRP alpha antibody (AB232765)

All lanes:

Western blot - Anti-SIRP alpha antibody (ab232765) at 2 µg/mL

Lane 1:

HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) cell lysate

Lane 2:

Pig brain lysate

Secondary

All lanes:

HRP-Linked Guinea pig anti-Rabbit at 1/2000 dilution

Predicted band size: 55 kDa

false

Supplier Data

Western blot - Anti-SIRP alpha antibody (AB232765)

All lanes:

Western blot - Anti-SIRP alpha antibody (ab232765) at 2 µg

All lanes:

Recombinant human SIRP alpha protein

Predicted band size: 55 kDa,75 kDa

Observed band size: 20 kDa,60 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

Reacts with

Human, Pig

Applications

WB, IHC-P

applications

Immunogen

Recombinant Fragment Protein within Human SIRPA aa 100-350. The exact immunogen used to generate this antibody is proprietary information.

P78324

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.5-2 µg/mL", "WB-species-notes": "", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "5-20 µg/mL", "IHCP-species-notes": "" }, "Pig": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.5-2 µg/mL", "WB-species-notes": "", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" }, "Recombinant full length protein - Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.5-2 µg/mL", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" } } }

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Properties and storage information

Form

Liquid

Purification technique

Affinity purification Protein A

Purification notes

Antigen-specific affinity chromatography followed by Protein A affinity chromatography.

Storage buffer

pH: 7.4 Preservative: 0.011% Proclin 300 Constituents: PBS, 55.77% Glycerol (glycerin, glycerine)

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

SIRP alpha also known as CD172a is a transmembrane receptor protein with a mass ranging between 70-110 kDa due to glycosylation. This protein extensively expresses on the surface of myeloid cells neurons and a subset of T-cells and is part of the immunoglobulin superfamily. SIRP alpha interacts with its ligand CD47 a widely expressed glycoprotein involved in immune response regulation. Its mechanical action primarily involves signal regulation through the recruitment of SHP-1 and SHP-2 two cytoplasmic tyrosine phosphatases.

Biological function summary

SIRP alpha functions significantly in the regulation of phagocytosis acting as a "don't eat me" signal to macrophages upon binding with CD47. It does not act alone; rather it is part of a complex that recruits SHP-1 and SHP-2 leading to inhibition of dephosphorylation activities essential for engulfment processes. This regulatory mechanism is important for maintaining cellular homeostasis ensuring that healthy cells are not mistakenly destroyed by the immune system.

Pathways

SIRP alpha plays an important role in the innate immune pathways involving the regulation of phagocytosis and cell-cell adhesion. Particularly it fits into the immune checkpoint pathways where it interacts closely with proteins like CD47 and plays a role in the interaction between the immune system and cancer cells. Through these pathways SIRP alpha helps maintain balance in the immune response allowing for the recognition of self versus non-self therefore preventing autoimmunity while facilitating the clearance of pathogens.

SIRP alpha is implicated in cancer and autoimmune diseases. In cancer its interaction with CD47 allows tumor cells to escape phagocytosis promoting tumor survival and growth. In autoimmune disorders dysregulated SIRP alpha expression or signaling could miscommunicate immune signals leading to the destruction of healthy tissue. Understanding the link between SIRP alpha and these conditions can reveal potential targets for therapeutic development especially using inhibitors or modulators targeting the SIRP alpha-CD47 interaction.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Visit the General protocols
Visit the Troubleshooting

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Target data

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 (By similarity). 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. Plays a role in antiviral immunity and limits new world arenavirus infection by decreasing virus internalization (By similarity). Receptor for THBS1 (PubMed : 24511121). Interaction with THBS1 stimulates phosphorylation of SIRPA (By similarity). In response to THBS1, involved in ROS signaling in non-phagocytic cells, stimulating NADPH oxidase-derived ROS production (PubMed : 24511121).

See full target information SIRPA

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Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Journal of cellular and molecular medicine 24:1128-1140 PubMed31755222

2019

Fibroblast growth factor-2/platelet-derived growth factor enhances atherosclerotic plaque stability.

Applications

Unspecified application

Species

Unspecified reactive species

Yang Mao,Xiao Qiong Liu,Yu Song,Chun Gang Zhai,Xing Li Xu,Lei Zhang,Yun Zhang

View all publications

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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com

Anti-SIRP alpha antibody

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SIRP alpha antibody (AB232765)

Western blot - Anti-SIRP alpha antibody (AB232765)

Western blot - Anti-SIRP alpha antibody (AB232765)

Key facts

Host species

Clonality

Isotype

Carrier free

Reacts with

Applications

Immunogen

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Reactivity data

Properties and storage information

Form

Purification technique

Purification notes

Storage buffer

Shipped at conditions

Appropriate short-term storage duration

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

Publications (1)

Product promise