ITGB2 ELISA Kit (Human)

Intra-assay Precision (Precision within an assay) : 3 samples with low, middle and high level Integrin Beta 2 (CD18) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays) : 3 samples with low, middle and high level Integrin Beta 2 (CD18) were tested on 3 different plates, 8 replicates in each plate. CV (%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%

CD18; cell surface adhesion glycoprotein (LFA-1/CR3/P150,959 beta subunit precursor) ; Cell surface adhesion glycoproteins LFA-1/CR3/p150,95 subunit beta; complement component 3 receptor 3 and 4 subunit; complement receptor C3 beta-subunit; Complement receptor C3 subunit beta; integrin beta chain, beta 2; integrin beta-2; integrin, beta 2 (complement component 3 receptor 3 and 4 subunit) ; LAD; LCAMB; leukocyte cell adhesion molecule CD18; leukocyte-associated antigens CD18/11A, CD18/11B, CD18/11C; LFA-1; MAC-1; MF17; MFI7; truncated integrin beta-2.

Integrin ITGAL/ITGB2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. Integrins ITGAM/ITGB2 and ITGAX/ITGB2 are receptors for the iC3b fragment of the third complement component and for fibrinogen. Integrin ITGAX/ITGB2 recognizes the sequence G-P-R in fibrinogen alpha-chain. Integrin ITGAM/ITGB2 recognizes P1 and P2 peptides of fibrinogen gamma chain. Integrin ITGAM/ITGB2 is also a receptor for factor X. Integrin ITGAD/ITGB2 is a receptor for ICAM3 and VCAM1. Contributes to natural killer cell cytotoxicity (PubMed:15356110) . Involved in leukocyte adhesion and transmigration of leukocytes including T-cells and neutrophils (PubMed:11812992, PubMed:28807980) . Triggers neutrophil transmigration during lung injury through PTK2B/PYK2-mediated activation (PubMed:18587400) . Integrin ITGAL/ITGB2 in association with ICAM3, contributes to apoptotic neutrophil phagocytosis by macrophages (PubMed:23775590) . In association with alpha subunit ITGAM/CD11b, required for CD177-PRTN3-mediated activation of TNF primed neutrophils (PubMed:21193407) .

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Integrin Beta 2 (CD18) . Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Integrin Beta 2 (CD18) . Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Integrin Beta 2 (CD18), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of Integrin Beta 2 (CD18) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Reconstitution & Storage Instructions Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Antibody Array (AA) Protocol

Component Amount Anti-ITGB2 Microplate 96 Wells (12 x 8 Well strips) ITGB2 Lyophilized Standard 2 100X Biotinylated ITGB2 Detector Antibody 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL Stop Solution 1 x 6 mL TMB Substrate 1 x 9 mL Component Amount Component Amount Anti-ITGB2 Microplate 96 Wells (12 x 8 Well strips) Anti-ITGB2 Microplate 96 Wells (12 x 8 Well strips) ITGB2 Lyophilized Standard 2 ITGB2 Lyophilized Standard 2 100X Biotinylated ITGB2 Detector Antibody 1 x 120 uL 100X Biotinylated ITGB2 Detector Antibody 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL Standard Diluent 1 x 20 mL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL 30X Wash Buffer 1 x 20 mL Stop Solution 1 x 6 mL Stop Solution 1 x 6 mL TMB Substrate 1 x 9 mL TMB Substrate 1 x 9 mL

This assay has high sensitivity and excellent specificity for detection of Integrin Beta 2 (ITGb2) . No significant cross-reactivity or interference between Integrin Beta 2 (ITGb2) and analogues was observed.