WAP four-disulfide core domain protein 2, also known as Human Epididymis Protein 4 (HE4), is a protein that in humans is encoded by the WFDC2 gene. This gene encodes 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.
Formulation
0.5mg/ml if reconstituted with 0.2ml sterile DI water
Host
Rabbit
Immunogen Region
Human recombinant protein (amino acids E31-F124) was used as the immunogen for the HE4 antibody.
Isotype
IgG
Predicted Reactivity
Human, Mouse, Rat
Reactivity
Rat, Human, Mouse
Recombinant
No
Subcellular Location
Secreted, cytoplasmic
Antigen
WFDC2
Uniprot
Q14508
Buffer
Lyophilized from 1X PBS with 2% Trehalose and 0.025% sodium azide
Format
Antigen affinity purified
Purification
Antigen affinity
Storage
After reconstitution, the HE4 antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.
Applications
IHC-P, WB, ELISA
Dilution
Western blot: 0.5-1ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml,Direct ELISA: 0.1-0.5ug/ml (human recombinant protein)