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Home >> Antibodies >> ITGB2 Antibody 1A3/2A10 / CD18 Monoclonal Antibody

ITGB2 Antibody 1A3/2A10 / CD18 Monoclonal Antibody [clone 1A3/2A10] (RQ4511)

  Catalog No Formulation Size Price (USD)  
Image RQ4511 0.5mg/ml if reconstituted with 0.2ml sterile DI water 100 ug 449
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ITGB2 Antibody 1A3/2A10 in Human Tonsil IHC. Immunohistochemistry testing of FFPE human tonsil tissue with ITGB2 antibody clone 1A3/2A10 at 2 ug/ml. HIER was performed by boiling tissue sections in pH 6 10mM citrate buffer for 10-20 min followed by cooling at RT for 20 min. The image shows widespread heterogeneous brown staining among cells throughout the lymphoid tissue, with numerous strongly positive cells against more weakly stained areas. This pattern demonstrates tissue detection of integrin beta 2 using the CD18 Monoclonal Antibody.
ITGB2 Antibody 1A3/2A10 in Human Rectal Cancer IHC. Immunohistochemistry testing of FFPE human rectal cancer tissue with ITGB2 antibody clone 1A3/2A10 at 2 ug/ml. HIER was performed by boiling tissue sections in pH 6 10mM citrate buffer for 10-20 min followed by cooling at RT for 20 min. Brown staining is concentrated in numerous cells within the stromal regions surrounding the glandular tumor structures, while the epithelial structures show comparatively little staining. The distribution is consistent with CD18-positive infiltrating immune cells and demonstrates detection with the CD18 Monoclonal Antibody.
ITGB2 Antibody 1A3/2A10 Western Blot of Human Placenta. Western blot testing of human placental lysate with ITGB2 antibody clone 1A3/2A10 at 1 ug/ml. A discrete band is visible at approximately 85-90 kDa, within the expected 85-95 kDa range for glycosylated CD18. The blot is relatively clean, with the target-sized band clearly distinguishable from background signal. This result demonstrates detection of ITGB2 in human placenta by the CD18 Monoclonal Antibody.
Availability 1-3 business days
Species Reactivity Human
Format Purified
Host Mouse
Clonality Monoclonal
Isotype Mouse IgG1
Clone Name 1A3/2A10
Purity Protein G affinity
Buffer Lyophilized from 1X PBS with 2% Trehalose and 0.025% sodium azide
UniProt P05107
Localization Cell membrane, cytoplasm
Applications Western Blot : 0.5-1ug/ml
Immunohistochemistry (FFPE) : 1-2ug/ml
Limitations This ITGB2 Antibody 1A3/2A10 / CD18 Monoclonal Antibody is available for research use only.
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Description

ITGB2 Antibody 1A3/2A10 recognizes integrin beta 2, a transmembrane adhesion receptor subunit encoded by the ITGB2 gene and commonly designated CD18. Integrin beta 2 is predominantly expressed by leukocytes and associates with several alpha integrin chains to form distinct beta 2 integrin heterodimers. These include LFA-1 (CD11a/CD18), Mac-1 (CD11b/CD18), complement receptor 4 (CD11c/CD18), and alpha D beta 2 (CD11d/CD18).

CD18 is a type I transmembrane glycoprotein with a large extracellular region, a single transmembrane segment, and a short cytoplasmic tail. Association with different alpha chains generates receptors with distinct ligand-binding properties. Conformational regulation of these heterodimers permits rapid changes in ligand affinity, while receptor engagement initiates intracellular signals and cytoskeletal rearrangements that regulate leukocyte adhesion and movement.

ITGB2-containing integrins interact with ligands involved in immune cell trafficking and host defense. LFA-1 recognizes intercellular adhesion molecules such as ICAM1, while other CD18-containing integrins participate in complement recognition, phagocytosis, and additional adhesive interactions. Through these heterodimers, CD18 contributes to firm leukocyte adhesion, transendothelial migration, immune synapse formation, inflammatory responses, and innate and adaptive immune functions.

The biological importance of ITGB2 is demonstrated by leukocyte adhesion deficiency type I, which results from pathogenic variants that impair CD18 expression or function. Loss of normal beta 2 integrin activity disrupts leukocyte adhesion and extravasation, limiting the ability of immune cells to migrate efficiently from the circulation into tissues. ITGB2 is consequently an important target in research involving leukocyte trafficking, inflammation, immune cell interactions, and adhesion disorders.

CD18 has historically been associated with LFA-1 nomenclature, but the ITGB2 protein is shared among multiple beta 2 integrins. Detection of CD18 therefore reflects expression of the common beta 2 subunit rather than specifically identifying the CD11a/CD18 LFA-1 heterodimer.

An ITGB2 Antibody can be used to investigate expression of the shared beta 2 integrin subunit, while a CD18 Monoclonal Antibody provides a monoclonal reagent for studies of leukocyte adhesion and integrin biology.

For a broader CD18-focused reagent, see our CD18 Antibody / ITGB2 Polyclonal Antibody page.

Application Notes

Optimal dilution of the ITGB2 Antibody 1A3/2A10 / CD18 Monoclonal Antibody should be determined by the researcher.

Immunogen

Human CD18 recombinant protein (amino acids Q404-S769) was used as the immunogen for the ITGB2 Antibody 1A3/2A10.

Storage

After reconstitution, the ITGB2 Antibody 1A3/2A10 can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Alternate Names

CD18 antibody, Integrin Beta 2 antibody, LFA-1 Beta Chain antibody, Leukocyte Integrin Beta 2 antibody, Complement Receptor Beta Chain antibody

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