ELISA and Immunoassays

Enzyme-linked immunosorbent assay (ELISA) is a biochemical technique to detect the presence of an antibody or an antigen in a sample. Whereas an indirect ELISA is used to determine the amount of antibodies to a specific antigen in a sample, a Sandwich-ELISA is used to determine the concentration of the analyte by use of antibodies that bind to the analyte (and a standard). A different way of determining the analyte concentration is a competitive ELISA, often called EIA. This technique is preferred for small analytes.

Enzyme-linked immunosorbent assay (ELISA) is a biochemical technique to detect the presence of an antibody or an antigen in a sample. Whereas an indirect ELISA is used to determine the amount of... read more »
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ELISA and Immunoassays

Enzyme-linked immunosorbent assay (ELISA) is a biochemical technique to detect the presence of an antibody or an antigen in a sample. Whereas an indirect ELISA is used to determine the amount of antibodies to a specific antigen in a sample, a Sandwich-ELISA is used to determine the concentration of the analyte by use of antibodies that bind to the analyte (and a standard). A different way of determining the analyte concentration is a competitive ELISA, often called EIA. This technique is preferred for small analytes.

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QuicKey Pro Human sST2 (Soluble ST2) ELISA Kit
QuicKey Pro Human sST2 (Soluble ST2) ELISA Kit

Item number: E-OSEL-H0041.24

ST2, also known as IL-1 R4, is a component of the receptor for the proinflammatory cytokine Interleukin-33. The IL-33 receptor additionally includes IL-1 RAcp which also associates with IL-1 RI and IL-1 R rp2/IL-1 R6. A soluble form of ST2 functions as a decoy receptor. IL-33 promotes Th2-biased immune responses,...
Keywords: DER4, IL1RL1, Protein ST2, Interleukin-1 receptor-like 1
Application: ELISA
Species reactivity: human
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QuicKey Pro Human OC (Osteocalcin) ELISA Kit
QuicKey Pro Human OC (Osteocalcin) ELISA Kit

Item number: E-OSEL-H0042.24

Bone gamma-carboxyglutamic acid (Gla) protein, known as BGLAP, BGP or osteocalcin, is an abundant, non-collagenous protein component of bone that is produced by osteoblasts. In mice, osteocalcin is composed of a cluster of 3 genes known as OG1, OG2 and ORG, all of which can be found within a 23Kb span of genomic...
Keywords: BGP, BGLAP, Osteocalcin, Bone Gla protein, Gamma-carboxyglutamic acid-containing protein
Application: ELISA
Species reactivity: human
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QuicKey Pro Human VWF (Von Willebrand Factor) ELISA Kit
QuicKey Pro Human VWF (Von Willebrand Factor) ELISA Kit

Item number: E-OSEL-H0043.24

The glycoprotein encoded by VWF gene functions as both an antihemophilic factor carrier and a platelet-vessel wall mediator in the blood coagulation system. It is crucial to the hemostasis process. Mutations in this gene or deficiencies in this protein result in von Willebrand's disease. An unprocessed pseudogene...
Keywords: VWF, F8VWF
Application: ELISA
Species reactivity: human
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QuicKey Pro Human HP (Haptoglobin) ELISA Kit
QuicKey Pro Human HP (Haptoglobin) ELISA Kit

Item number: E-OSEL-H0044.24

Haptoglobin is an acute phase glycoprotein that is an inactive member of the peptidase S1 family of serine proteases. It is secreted by multiple cell types and binds with high affinity to circulating Hemoglobin. Association of Haptoglobin with free Hemoglobin protects tissues from Hemoglobin-mediated oxidative...
Keywords: HP
Application: ELISA
Species reactivity: human
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QuicKey Pro Human SELE (E-Selectin) ELISA Kit
QuicKey Pro Human SELE (E-Selectin) ELISA Kit

Item number: E-OSEL-H0045.24

The protein encoded by SELE gene is found in cytokine-stimulated endothelial cells and is thought to be responsible for the accumulation of blood leukocytes at sites of inflammation by mediating the adhesion of cells to the vascular lining. It exhibits structural features such as the presence of lectin- and EGF-like...
Keywords: SELE, CD62E, ELAM1, LECAM2, ELAM-1, E-selectin, CD62 antigen-like family member E, Endothelial leukocyte adhesion molecule...
Application: ELISA
Species reactivity: human
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QuicKey Pro Human SELP (P-Selectin) ELISA Kit
QuicKey Pro Human SELP (P-Selectin) ELISA Kit

Item number: E-OSEL-H0046.24

The Selectin family is comprised of three members, E-Selectin, L-Selectin, and P-Selectin. E-Selectin [endothelial leukocyte adhesion molecule-1 (ELAM-1), CD62E] is transiently expressed on vascular endothelial cells in response to IL-1 beta and TNF-alpha. The human and rat proteins share approximately 67% amino...
Keywords: GMRP, SELP, CD62P, PADGEM, LECAM3, GMP-140, P-selectin, Granule membrane protein 140, CD62 antigen-like family member P,...
Application: ELISA
Species reactivity: human
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QuicKey Pro Human CXCL1 (Growth Regulated Oncogene Alpha) ELISA Kit
QuicKey Pro Human CXCL1 (Growth Regulated Oncogene Alpha)...

Item number: E-OSEL-H0047.24

CXCL1 (C-X-C Motif Chemokine Ligand 1) is a Protein Coding gene. Diseases associated with CXCL1 include Melanoma and Bacterial Meningitis. Among its related pathways are Peptide ligand-binding receptors and Chemokine Superfamily Pathway: Human/Mouse Ligand-Receptor Interactions. GO annotations related to this gene...
Keywords: GRO, CXCL1
Application: ELISA
Species reactivity: human
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QuicKey Pro Human TFPI (Tissue Factor Pathway Inhibitor) ELISA Kit
QuicKey Pro Human TFPI (Tissue Factor Pathway Inhibitor)...

Item number: E-OSEL-H0048.24

Tissue Factor Pathway Inhibitor (TFPI) is a key regulator of the extrinsic coagulation pathway. It inhibits coagulation through the formation of a quaternary complex with Coagulation Factor X, Coagulation Factor III/Tissue Factor, and Coagulation Factor VII, thereby preventing the activation of Factor X. TFPI also...
Keywords: EPI, TFPI, LACI, Extrinsic pathway inhibitor, Tissue factor pathway inhibitor, Lipoprotein-associated coagulation inhibitor
Application: ELISA
Species reactivity: human
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QuicKey Pro Human VEGFR-2 (Vascular Endothelial Growth Factor Receptor 2) ELISA Kit
QuicKey Pro Human VEGFR-2 (Vascular Endothelial Growth...

Item number: E-OSEL-H0049.24

Vascular endothelial growth factor (VEGF) is a major growth factor for endothelial cells. This gene encodes one of the two receptors of the VEGF. This receptor, known as kinase insert domain receptor, is a type III receptor tyrosine kinase. It functions as the main mediator of VEGF-induced endothelial proliferation,...
Keywords: KDR, FLK1, FLK-1, CD309, VEGFR-2, Fetal liver kinase 1, Kinase insert domain receptor, Protein-tyrosine kinase receptor...
Application: ELISA
Species reactivity: human
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QuicKey Pro Human CD147 (Extracellular Matrix Metalloproteinase Inducer) ELISA Kit
QuicKey Pro Human CD147 (Extracellular Matrix...

Item number: E-OSEL-H0050.24

BSG,also named as 5F7,Basigin,EMMPRIN,TCSF and CD147,plays pivotal roles in spermatogenesis,embryo implantation,neural network formation and tumor progression. It stimulates adjacent fibroblasts to produce matrix metalloproteinases (MMPS).CD147 may target monocarboxylate transporters SLC16A1,SLC16A3 and SLC16A8 to...
Keywords: 5F7, TCSF, CD147, HAb18G, Basigin, EMMPRIN, OK blood group antigen, Hepatoma-associated antigen, Collagenase stimulatory...
Application: ELISA
Species reactivity: human
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QuicKey Pro Human CTSB (Cathepsin B) ELISA Kit
QuicKey Pro Human CTSB (Cathepsin B) ELISA Kit

Item number: E-OSEL-H0051.24

The protein encoded by CTSB gene is a lysosomal cysteine proteinase composed of a dimer of disulfide-linked heavy and light chains, both produced from a single protein precursor. It is also known as amyloid precursor protein secretase and is involved in the proteolytic processing of amyloid precursor protein (APP)....
Keywords: CTSB, CPSB
Application: ELISA
Species reactivity: human
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QuicKey Pro Human PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) ELISA Kit
QuicKey Pro Human PCSK9 (Proprotein Convertase...

Item number: E-OSEL-H0052.24

Proprotein convertase subtilisin/kexin 9 (PCSK9) belongs to the proteinase K subfamily of subtilases and is expressed as a soluble zymogen that undergoes autocatalytic intramolecular processing in the endoplasmic reticulum. It is a 692 amino acid (aa) glycoprotein with an overall domain structure similar to other...
Keywords: PC9, NARC1, PCSK9, NARC-1, PSEC0052, EC=3.4.21.-, Proprotein convertase 9, Subtilisin/kexin-like protease PC9, Neural...
Application: ELISA
Species reactivity: human
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