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Rabbit Polyclonal LILRB1 antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Rat, Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human LILRB1 aa 450 to C-terminus.

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Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LILRB1 antibody (AB237625), expandable thumbnail
  • Western blot - Anti-LILRB1 antibody (AB237625), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Anti-LILRB1 antibody (AB237625), expandable thumbnail

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.4
Preservative: 0.03% Proclin 300
Constituents: PBS, 50% Glycerol (glycerin, glycerine)

Form
Liquid
Clonality
Polyclonal

Immunogen

  • Recombinant Fragment Protein within Human LILRB1 aa 450 to C-terminus. The exact immunogen used to generate this antibody is proprietary information. Database link Q8NHL6

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
WBIHC-PICC/IF
Human
Tested
Tested
Tested
Rat
Tested
Expected
Expected

Tested
Tested

Species
Rat
Dilution info
1/500.00000 - 1/5000.00000
Notes

-

Species
Human
Dilution info
1/500.00000 - 1/5000.00000
Notes

-

Tested
Tested

Species
Human
Dilution info
1/200.00000 - 1/500.00000
Notes

-

Expected
Expected

Species
Rat
Dilution info
Use at an assay dependent concentration.
Notes

-

Tested
Tested

Species
Human
Dilution info
1/50.00000 - 1/200.00000
Notes

-

Expected
Expected

Species
Rat
Dilution info
Use at an assay dependent concentration.
Notes

-

Associated Products

Select an associated product type

4 products for Alternative Product

Target data

Function

Receptor for class I MHC antigens. Recognizes a broad spectrum of HLA-A, HLA-B, HLA-C, HLA-G and HLA-F alleles (PubMed:16455647, PubMed:28636952). Receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. Ligand binding results in inhibitory signals and down-regulation of the immune response. Engagement of LILRB1 present on natural killer cells or T-cells by class I MHC molecules protects the target cells from lysis. Interaction with HLA-B or HLA-E leads to inhibition of FCER1A signaling and serotonin release. Inhibits FCGR1A-mediated phosphorylation of cellular proteins and mobilization of intracellular calcium ions (PubMed:11907092, PubMed:9285411, PubMed:9842885). Recognizes HLA-G in complex with B2M/beta-2 microglobulin and a nonamer self-peptide (PubMed:16455647). Upon interaction with peptide-bound HLA-G-B2M complex, triggers secretion of growth-promoting factors by decidual NK cells (PubMed:19304799, PubMed:29262349). Reprograms B cells toward an immune suppressive phenotype (PubMed:24453251).

Alternative names

Recommended products

Rabbit Polyclonal LILRB1 antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Rat, Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human LILRB1 aa 450 to C-terminus.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Polyclonal
Immunogen
  • Recombinant Fragment Protein within Human LILRB1 aa 450 to C-terminus. The exact immunogen used to generate this antibody is proprietary information. Database link Q8NHL6
Purification technique
Affinity purification Protein G
Concentration
Loading...
Purification notes

Purity greater than 95%.

Storage

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

Notes

Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.

If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.

Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.

Supplementary info

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

LILRB1 also known as leukocyte immunoglobulin-like receptor subfamily B member 1 or CD85j is a protein expressed mainly on myeloid cells including monocytes and dendritic cells as well as some subsets of lymphocytes. This transmembrane protein is approximately 110-120 kDa in mass and is recognized for its role in immune regulation. LILRB1 interacts with MHC class I molecules on target cells mediating inhibitory signals that prevent immune overactivation. These interactions allow LILRB1 to help maintain self-tolerance and regulate adaptive immune responses.

Biological function summary

LILRB1 functions as an inhibitory receptor that dampens immune system activation by recruiting SHP-1 and SHP-2 phosphatases. As part of a complex with other immune checkpoint molecules LILRB1 modulates the balance between activating and inhibitory signals in immune cells. Its inhibitory signaling prevents excessive inflammation by reducing cytokine production and limiting T cell proliferation.

Pathways

This protein plays a role in immune signaling pathways specifically through interactions with proteins involved in the regulation of immune responses such as KIRs (Killer-cell Immunoglobulin-like Receptors). It participates in pathways that control the inhibitory signals controlling immune activity like the NK cell cytotoxicity pathway and the Fc gamma R-mediated phagocytosis pathway. Through these mechanisms LILRB1 maintains immune equilibrium and preserves tissue integrity during immune responses.

Associated diseases and disorders

The dysregulation of LILRB1 activity links to autoimmune conditions and infectious disease outcomes. Aberrant expression or function can impact diseases such as rheumatoid arthritis and HIV influencing the progression and severity of these conditions. In rheumatoid arthritis altered LILRB1 signaling may exacerbate inflammation while in the context of HIV it could affect immune cell exhaustion. Furthermore LILRB1 interactions with proteins like ILT2 highlight its potential involvement in modulating immune responses during these diseases.

Product promise

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3 product images

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LILRB1 antibody (ab237625), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LILRB1 antibody (ab237625)

    Paraffin-embedded human tonsil tissue stained for LILRB1 with ab237625 at a 1/400 dilution in immunohistochemical analysis.

    After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30 minutes at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a biotinylated secondary antibody and visualized using an HRP conjugated SP system.

  • Western blot - Anti-LILRB1 antibody (ab237625), expandable thumbnail

    Western blot - Anti-LILRB1 antibody (ab237625)

    All lanes: Western blot - Anti-LILRB1 antibody (ab237625) at 1/500 dilution

    Lane 1: THP-1 (human monocytic leukemia cell line) whole cell lysate

    Lane 2: Rat brain tissue lysate

    Secondary

    All lanes: Goat polyclonal to rabbit IgG at 1/50000 dilution

    Predicted band size: 71 kDa

  • Immunocytochemistry/ Immunofluorescence - Anti-LILRB1 antibody (ab237625), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-LILRB1 antibody (ab237625)

    HEK-293 (human epithelial cell line from embryonic kidney) cells stained for LILRB1 using ab237625 at a dilution of 1/133 in ICC/IF.

    The cells were fixed in 4% formaldehyde, permeabilized using 0.2% Triton X-100 and blocked in 10% normal goat serum. The cells were then incubated with the primary antibody overnight at 4°C. Secondary used is an Alexa-Fluor®488-conjugated Goat Anti-Rabbit IgG (H+L). Counterstained with DAPI.

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Product protocols

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

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