Product Name
HE4 Recombinant Rabbit Monoclonal Antibody [JF62-09] - BSA and Azide free
Antibody Type
Recombinant Rabbit monoclonal Antibody
Immunogen
Synthetic peptide within Human HE4 aa 78-114 / 124.
Target Molecular Weight
Predicted band size: 13 kDa
Positive Control
SW480 cell lysate, HepG2 cell lysate, OVCAR-3 cell lysate, mouse lung tissue lysate, mouse kidney tissue lysate, HepG2.
Storage Instructions
Store at 2-8℃. Avoid freeze.
Purification Method
Protein A affinity purified.
Function
HE4 (whey acidic protein (WAP)-type four-disulfide core-2, WFDC2) is a small secretory protein that may influence sperm maturation. HE4 gene expression is high in pulmonary epithelial cells and in some ovarian cancers. HE4 protein has a WAP motif that contains eight cysteines forming four disulfide bonds at the core of the protein. The WAP motif functions as a protease inhibitor in many of the family members that contain them.
Background References
1. Markovic-Lipkovski J et al. Variable Expression of Neural Cell Adhesion Molecule Isoforms in Renal Tissue: Possible Role in Incipient Renal Fibrosis. PLoS One 10:e0137028 (2015).
2. Zhuang H et al. Human epididymis protein 4 in association with Annexin II promotes invasion and metastasis of ovarian cancer cells. Mol Cancer 13:243 (2014).
Tissue Specificity
Expressed in a number of normal tissues, including male reproductive system, regions of the respiratory tract and nasopharynx. Highly expressed in a number of tumors cells lines, such ovarian, colon, breast, lung and renal cells lines. Initially described as being exclusively transcribed in the epididymis.
Synonyms
dJ461P17.6 antibody
EDDM4 antibody
epididymal protein 4 antibody
Epididymal secretory protein E4 antibody
Epididymis specific whey acidic protein type four disulfide core antibody
HE 4 antibody
Major epididymis specific protein E4 antibody
Major epididymis-specific protein E4 antibody
MGC57529 antibody
Putative protease inhibitor WAP5 antibody
Expand
dJ461P17.6 antibody
EDDM4 antibody
epididymal protein 4 antibody
Epididymal secretory protein E4 antibody
Epididymis specific whey acidic protein type four disulfide core antibody
HE 4 antibody
Major epididymis specific protein E4 antibody
Major epididymis-specific protein E4 antibody
MGC57529 antibody
Putative protease inhibitor WAP5 antibody
WAP 5 antibody
WAP domain containing protein HE4 antibody
WAP domain containing protein HE4 V4 antibody
WAP four disulfide core domain 2 antibody
WAP four disulfide core domain protein 2 antibody
WAP four-disulfide core domain protein 2 antibody
WAP5 antibody
WFDC 2 antibody
WFDC2 antibody
WFDC2_HUMAN antibody
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This data was developed using ET1702-61, the same antibody clone in a different buffer formulation.
Western blot analysis of HE4 on different lysates with Rabbit anti-HE4 antibody (ET1702-61) at 1/2,000 dilution.
Lane 1: SW480 cell lysate (15 µg/Lane)
Lane 2: HepG2 cell lysate (15 µg/Lane)
Lane 3: OVCAR-3 cell lysate (15 µg/Lane)
Lane 4: Mouse lung tissue lysate (20 µg/Lane)
Lane 5: Mouse kidney tissue lysate (20 µg/Lane)
Predicted band size: 13 kDa
Observed band size: 20 kDa
Exposure time: 1 minute;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET1702-61) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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This data was developed using ET1702-61, the same antibody clone in a different buffer formulation.
Immunocytochemistry analysis of HepG2 cells labeling HE4 with Rabbit anti-HE4 antibody (ET1702-61) at 1/100 dilution.
Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-HE4 antibody (ET1702-61) at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.
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This data was developed using ET1702-61, the same antibody clone in a different buffer formulation.
Flow cytometric analysis of HepG2 cells labeling HE4.
Cells were fixed and permeabilized. Then stained with the primary antibody (ET1702-61, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"