Human HE4 ELISA Kit | HE4 elisa kit

HE4 ELISA

Cat. Num. AAA494751

• Reactivity: Human
• Synonyms: HE4; HE4 ELISA; HE4 elisa kit

• Reactivity: Human
• Sequence Length: 124

• Samples: Human serum
• Assay Type: Sandwich
• Intended Uses: The HE4 EIA is an enzyme immunometric assay for the quantitative determination of HE4 in human serum. The assay is to be used as an aid in monitoring recurrence or progressive disease in patients with epithelial ovarian cancer. Serial testing for patient HE4 assay values should be used in conjunction with other clinical methods used for monitoring ovarian cancer.
• Preparation and Storage: 2-8 degree C

Related Product Information for HE4 elisa kit

Principle of the assay: The HE4 EIA is a solid-phase, non-competitive immunoassay based upon the direct sandwich technique using two mouse monoclonal antibodies, 2H5 and 3D8, directed against two epitopes in the C-WFDC domain of HE4. Calibrators and patient samples are incubated together with biotinylated Anti-HE4 monoclonal antibody (MAb) 2H5 in streptavidin coated microstrips. HE4 present in calibrators or samples is adsorbed to the streptavidin coated microstrips by the biotinylated Anti-HE4 MAb during the incubation. The strips are then washed and incubated with HRP labeled Anti-HE4 MAb 3D8. After washing, buffered Substrate/Chromogen reagent (hydrogen peroxide and 3, 3', 5, 5' tetra-methyl-benzidine) is added to each well and the enzyme reaction is allowed to proceed. During the enzyme reaction a blue color will develop if antigen is present. The intensity of the color is proportionate to the amount of HE4 present in the samples. The color intensity is determined in a microplate spectrophotometer at 620 nm (or optionally at 405 nm after addition of Stop Solution). Calibration curves are constructed for each assay by plotting absorbance value versus the concentration for each calibrator. The HE4 concentrations of patient samples are then read from the calibration curve.

Product Categories/Family for HE4 elisa kit

Oncology; Assay Categories

NCBI and Uniprot Product Information

• NCBI GI #: 28894243
• Molecular Weight: 11,043 Da
• NCBI Official Full Name: HE4 protein
• UniProt Protein Name: WAP four-disulfide core domain protein 2
• UniProt Gene Name: WFDC2
• UniProt Synonym Gene Names: HE4; WAP5
• UniProt Entry Name: WFDC2_HUMAN

Uniprot Description

WFDC2: a protein that is a member of the WFDC domain family. The WFDC domain, or WAP Signature motif, contains eight cysteines forming four disulfide bonds at the core of the protein, and functions as a protease inhibitor in many family members. This gene is expressed in pulmonary epithelial cells, and was also found to be expressed in some ovarian cancers. The encoded protein is a small secretory protein, which may be involved in sperm maturation. [provided by RefSeq, Jul 2008]

Protein type: Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 20q13.12

Cellular Component: extracellular space

Molecular Function: serine-type endopeptidase inhibitor activity; aspartic-type endopeptidase inhibitor activity; endopeptidase inhibitor activity; cysteine protease inhibitor activity

Biological Process: spermatogenesis; proteolysis