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AB277459

Human CD18 ELISA

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Human CD18 ELISA is a Sandwich ELISA for the measurement of Human CD18 ELISA in Human in Biofluids, Cell Culture Media samples.
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ELISA - Human CD18 ELISA (AB277459)
  • ELISA

Supplier Data

ELISA - Human CD18 ELISA (AB277459)

These standard curves are for demonstration only. A standard curve must be run with each assay.

주요 정보

검출 방식

Colorimetric

샘플 타입

Plasma, Cell culture supernatant, Serum

Reacts with

Human

분석 유형

Sandwich

결과 유형

Quantitative

Sensitivity

= 0.22 ng/mL

검출 범위

0.205 - 50 ng/mL

분석 플랫폼

Pre-coated microplate (12 x 8 well strips)

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제품 세부 정보

Human CD18 ELISA Kit (ab277459) is an in-vitro enzyme-linked immunosorbent assay for the quantitative measurement of Human CD18 in serum, plasma and cell culture supernatants.

This assay employs an antibody specific for Human CD18 coated on a 96-well plate. Standards and samples are pipetted into the wells and Human CD18 present in a sample is bound to the wells by the immobilized antibody. The wells are washed, and biotinylated anti-Human CD18 antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of Human CD18 bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

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Precision

[ { "reproducibilityType": "Inter", "sample": "Overall", "replicates": 0, "mean": null, "standardDeviation": null, "coefficientOfVariability": "< 12" }, { "reproducibilityType": "Intra", "sample": "Overall", "replicates": 0, "mean": null, "standardDeviation": null, "coefficientOfVariability": "< 10" } ]
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Recovery

[ { "sample": "Serum", "range": "70 - 102 %", "average": "= 100.9" }, { "sample": "Plasma", "range": "70 - 100 %", "average": "= 86.64" }, { "sample": "Cell culture media", "range": "98 - 141 %", "average": "= 119.1" } ]
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제품 구성

{ "values": { "1x96Tests": { "sellingSize": "1 x 96 Tests", "publicAssetCode":"ab277459-1x96Tests", "assetComponentDetails": [ { "size":"1 x 12 mL", "name":"TMB One-Step Substrate Reagent", "number":"AB277459-CMP08", "productcode":"" }, { "size":"1 x 1 Unit", "name":"Anti-Human CD18 coated Microplate", "number":"AB277459-CMP04", "productcode":"" }, { "size":"1 x 25 mL", "name":"20X Wash Buffer", "number":"AB277459-CMP02", "productcode":"" }, { "size":"1 x 15 mL", "name":"5X Assay Diluent", "number":"AB277459-CMP05", "productcode":"" }, { "size":"1 x 8 mL", "name":"Stop Solution", "number":"AB277459-CMP07", "productcode":"" }, { "size":"2 x 1 Vial", "name":"Human CD18 standard protein (Lyophilized)", "number":"AB277459-CMP06", "productcode":"" }, { "size":"2 x 1 Vial", "name":"Biotinylated Anti-Human CD18 Antibody", "number":"AB277459-CMP01", "productcode":"" }, { "size":"1 x 200 µL", "name":"500X HRP-Streptavidin Concentrate", "number":"AB277459-CMP03", "productcode":"" } ] } } }
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특성 및 보관 정보

배송 시 보관 조건
Blue Ice
적절한 단기 보관 조건
-20°C
적절한 장기 보관 조건
-20°C
보관 정보
-20°C
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추가 정보

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

CD18 also known as ITGB2 is a protein with a molecular weight of approximately 95 kDa. It is part of the beta-2 integrin family and partners with different alpha subunits to form heterodimers. CD18 is primarily expressed on leukocytes including neutrophils monocytes macrophages and lymphocytes. As a surface marker CD18 plays a significant role in immune cell adhesion and migration enabling cells to respond to inflammation signals effectively.
Biological function summary

The CD18 protein functions in conjunction with associated alpha subunit partners forming a part of the wider integrin family complex. ItgB2 as it is sometimes referred to is essential for cell adhesion processes. These heterodimers facilitate binding between leukocytes and various ligands on endothelial cells which subsequently controls leukocyte transmigration through vascular walls. CD18's activities are critical in immune system responses making it a prominent focus in immunological research.

Pathways

The role of CD18 extends into inflammatory and immune response signaling pathways. It contributes critically to the leukocyte adhesion cascade. This cascade engagement involves interaction with other proteins such as ICAM-1 on endothelial surfaces. CD18 through its association in integrin-mediated signaling influences processes like phagocytosis and lymphocyte activation giving it a central place in cellular immunity.

Deficiencies or mutations affecting CD18 function correlate with disorders such as Leukocyte Adhesion Deficiency type I (LAD-I). This condition results from impaired leukocyte function due to defective integrin expression. The role of CD18 in arthritis is also significant primarily by mediating leukocyte infiltration into inflamed tissues. Its interaction with proteins like ICAM-1 becomes exceptionally relevant in these disease dynamics indicating potential therapeutic targets for modulating immune responses.
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제품 프로토콜

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타겟 정보

Integrin ITGAL : ITGB2 is a receptor for ICAM1, ICAM2 and ICAM3 (PubMed : 1676048, PubMed : 23775590, PubMed : 38195629). Integrin ITGAL : ITGB2 is also a receptor for the secreted form of ubiquitin-like protein ISG15; the interaction is mediated by ITGAL (PubMed : 29100055). 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 (PubMed : 10438935, PubMed : 8777714, PubMed : 9841932). 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). Integrins ITGAX : ITGB2 functions as a receptor of the erythrocyte-specific adhesion molecule ICAM4 and mediates erythrophagocytosis (PubMed : 16985175). Integrins ITGAX : ITGB2 functions as a receptor of the neuron-specific adhesion molecule ICAM5 ensuring neuron cell-leukocyte adhesion (PubMed : 10741396). Integrin ITGAL : ITGB2 functions as a receptor of ICAM1 by acting as a platform at the immunological synapse to translate TCR engagement and density of the ITGAL ligand ICAM1 into graded adhesion (PubMed : 38195629). Integrin ITGAM : ITGB2/MAC-1 complex functions as a signaling receptor for the ligand receptor ICAM1, ensuring adhesion between stimulated neutrophils and stimulated endothelial cells (PubMed : 1980124). Integrin ITGAL/ITGB2 that functions as a signaling receptor of ICAM2, ensuring leukocyte cell-cell adhesion on resting cells (PubMed : 1676048).
See full target information ITGB2

대체 명칭 보기

CD18, MFI7, ITGB2, Integrin beta-2, Complement receptor C3 subunit beta
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websiteProtocolBooklet
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