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AB284618

Human CD74 ELISA Kit

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Human CD74 ELISA Kit is a single-wash 90-min Simplestep used to quantify Human CD74 with a sensitivity of 15.63 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.

- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
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Sandwich ELISA - Human CD74 ELISA Kit (AB284618)
  • sELISA

Supplier Data

Sandwich ELISA - Human CD74 ELISA Kit (AB284618)

Interpolated concentrations of spiked human CD74 in serum, plasma (heparin), and plasma (EDTA).

Recombinant CD74 was spiked into the following human samples and diluted in a 2-fold dilution series in Sample Diluent NS. Undiluted samples are 50% serum, plasma (heparin), and plasma (EDTA). The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2).

Sandwich ELISA - Human CD74 ELISA Kit (AB284618)
  • sELISA

Supplier Data

Sandwich ELISA - Human CD74 ELISA Kit (AB284618)

Interpolated concentrations of spiked human CD74 in PBMC supernatant stimulated for 46 hours in 1.5% PHA-M.

Recombinant CD74 was spiked into PBMC supernatant stimulated for 46 hours in 1.5% PHA-M and diluted in a 2-fold dilution series in Sample Diluent NS. Undiluted samples are 50% stimulated PBMC supernatant. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2).

주요 정보

검출 방식

Colorimetric

샘플 타입

Heparin Plasma, Cell culture supernatant, Serum, EDTA Plasma

Reacts with

Human

분석 유형

Sandwich

결과 유형

Quantitative

Sensitivity

= 15.63 pg/mL

검출 범위

34.38 - 2200 pg/mL

분석 소요 시간

1h 30m

분석 플랫폼

Pre-coated microplate (12 x 8 well strips)

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보완 제품

Proteins & Peptides

AB315990

Recombinant Human CD74 Protein Standard (His tag)

Sandwich ELISA - Recombinant Human CD74 Protein Standard (His tag) (AB315990)

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Primary Antibodies

AB108393

Anti-CD74 antibody [EPR4064]

20ul selling size|BOND RX™ Validated|RabMAb|Recombinant|KO Validated

Immunocytochemistry/ Immunofluorescence - Anti-CD74 antibody [EPR4064] (AB108393)

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Reactivity 정보

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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제품 세부 정보

Human CD74 ELISA kit (ab284618) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of Human CD74 protein in human serum, plasma, and cell culture supernatant samples. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human CD74 with 15.63 pg/mL sensitivity.

SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:

-Single-wash protocol reduces assay time to 90 minutes or less
-High sensitivity, specificity and reproducibility from superior antibodies
-Fully validated in biological samples
-96-wells plate breakable into 12 x 8 wells strips

A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.

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Precision & recovery 정보

Precision

[ { "reproducibilityType": "Inter", "sample": "Serum", "replicates": 3, "mean": null, "standardDeviation": null, "coefficientOfVariability": "8.5" }, { "reproducibilityType": "Intra", "sample": "Serum", "replicates": 8, "mean": null, "standardDeviation": null, "coefficientOfVariability": "7.5" } ]

Recovery

[ { "sample": "Cell culture supernatant", "range": "106 - 121 %", "average": "= 111" }, { "sample": "Serum", "range": "89 - 103 %", "average": "= 94" }, { "sample": "EDTA Plasma", "range": "86 - 95 %", "average": "= 90" }, { "sample": "Heparin Plasma", "range": "90 - 102 %", "average": "= 95" } ]

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제품 구성

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특성 및 보관 정보

배송 시 보관 조건
Blue Ice
적절한 단기 보관 조건
+4°C
적절한 장기 보관 조건
+4°C
보관 정보
+4°C
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추가 정보

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

CD74 also known as the invariant chain or li is a protein with a mass of about 33 kDa. It is widely expressed on the surface of immune cells such as B cells dendritic cells and macrophages. CD74 plays an important role in the immune system by acting as a chaperone for major histocompatibility complex class II (MHC II) molecules guiding their migration to endosomes where they encounter antigenic peptides. The CD74 protein also functions as a cell surface receptor for macrophage migration inhibitory factor (MIF) enhancing the immune response process.
Biological function summary

CD74 facilitates multiple immune regulatory processes. It forms a complex with the MHC II molecules aiding in their proper folding and peptide loading in the endoplasmic reticulum. This complex then travels through the Golgi apparatus towards the lysosomal compartments where antigens are presented to initiate adaptive immune responses. In addition CD74 is involved in signal transduction pathways that regulate cell proliferation and survival influenced by interactions with MIF and other molecules.

Pathways

The role of CD74 extends into both the antigen presentation and MIF signaling pathways. Within the antigen presentation pathway CD74's activity is tightly connected with MHC II and subsequently to CD4+ T cells facilitating the activation of these immune cells. The MIF signaling pathway involves CD74 interacting with CD44 a receptor that further propagates the signaling cascades essential for immune modulation and cell survival.

CD74 is linked to inflammatory and autoimmune conditions such as rheumatoid arthritis and systemic lupus erythematosus. Aberrant expression of CD74 influences the presentation of autoantigens and may contribute to the chronic inflammation seen in these disorders. Its connection to MIF which is a pro-inflammatory cytokine further implicates CD74 in these autoimmune scenarios by promoting persistent immune activation. Researchers are also exploring CD74 as a therapeutic target in certain cancers due to its influence on immune surveillance and tumor progression.
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제품 프로토콜

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타겟 정보

Plays a critical role in MHC class II antigen processing by stabilizing peptide-free class II alpha/beta heterodimers in a complex soon after their synthesis and directing transport of the complex from the endoplasmic reticulum to the endosomal/lysosomal system where the antigen processing and binding of antigenic peptides to MHC class II takes place. Serves as cell surface receptor for the cytokine MIF.. Class-II-associated invariant chain peptide. Binds to the peptide-binding site of MHC class II alpha/beta heterodimers forming an alpha-beta-CLIP complex, thereby preventing the loading of antigenic peptides to the MHC class II complex until its release by HLA-DM in the endosome.. Isoform p41. Stabilizes the conformation of mature CTSL by binding to its active site and serving as a chaperone to help maintain a pool of mature enzyme in endocytic compartments and extracellular space of antigen-presenting cells (APCs). Has antiviral activity by stymieing the endosomal entry of Ebola virus and coronaviruses, including SARS-CoV-2 (PubMed : 32855215). Disrupts cathepsin-mediated Ebola virus glycoprotein processing, which prevents viral fusion and entry. This antiviral activity is specific to p41 isoform (PubMed : 32855215).
See full target information CD74

대체 명칭 보기

CD74, DHLAG, HLA class II histocompatibility antigen gamma chain, HLA-DR antigens-associated invariant chain, Ia antigen-associated invariant chain, Ii
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websiteProtocolBooklet
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Product promise

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