CD18 Rat anti-Mouse, Brilliant Violet 650, Clone: M18/2, BD Optibuild™

Rat Monoclonal Antibody

Supplier:  BD Biosciences 744600

Catalog No. BDB744600

Description

The M18/2 antibody specifically recognizes the common β 2 chain of LFA-1 (CD11a/CD18, α Lβ 2 integrin), Mac-1 (CD11b/CD18, α Mβ 2 integrin), and gp150, 95 (CD11c/CD18, α Xβ 2 integrin). Expression of CD18 is limited to leukocytes, where it is widely distributed in consort with the three integrin α chains (CD11a, CD11b, and CD11c). Among splenocytes, NK cells have the highest density of CD18, and T lymphocytes express a higher density than the remaining cells. The β 2 integrins are important mediators of leukocyte-endothelium interactions. It has been reported that M18/2 antibody blocks in vivo metastasis of the LB lymphoma to the spleen and that it blocksi in vitro formation of aggregates of LB cells and splenocytes. However, other reports indicate that mAb M18/2 has no effect on CTLmediated killing, adherence of C3bi-sensitized erythrocytes to Mac-1, antigen-specific binding of T cells to antigen-producing cells, or rejection of cardiac allografts. Recent in vitro studies indicate that M18/2 antibody stimulates adhesion of Mac-1 to its ligands C3bi and ICAM-1, and it stimulates adhesion of LFA-1 to ICAM-1, but it has no effect upon the interactions of LFA-1 with ICAM-2 nor ICAM-3.

The antibody was conjugated to BD Horizon™ BV650 which is part of the BD Horizon Brilliant™ Violet family of dyes. This dye is a tandem fluorochrome of BD Horizon BV421 with an Ex Max of 405nm and an acceptor dye with an Em Max at 650nm. BD Horizon BV650 can be excited by the violet laser and detected in a filter used to detect APC-like dyes (eg, 660/20nm filter). Due to the excitation and emission characteristics of the acceptor dye, there will be spillover into the APC and Alexa Fluor™ 700 detectors. However, the spillover can be corrected through compensation as with any other dye combination. BV650 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an emission maximum at 650 nm. Due to the excitation and emission characteristics of the acceptor dye, there will be spillover into the APC and Alexa Fluor™ 700 detectors. BV650 will have moderate spillover into the BD Horizon™ BV711 detector.

Specifications

• Antigen: CD18
• Clone: M18/2
• Conjugate: Brilliant Violet 650
• Gene Alias: Cd18, ITGB2, Integrin β2 chain
• Immunogen: Mouse CTL glycoproteins
• Quantity: 50 μg
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

• Classification: Monoclonal
• Concentration: 0.2mg/mL
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Host Species: Rat
• Purification Method: Affinity Purified
• Regulatory Status: RUO
• Target Species: Mouse
• Isotype: IgG2a κ

Safety and Handling

WARNING: Reproductive Harm - www.P65Warnings.ca.gov