EI24 Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| WB, IHC-P, E |
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Primary Accession | O14681 |
Other Accession | NP_004870, 55956766 |
Reactivity | Human, Mouse, Rat |
Host | Rabbit |
Clonality | Polyclonal |
Isotype | IgG |
Calculated MW | 38965 Da |
Application Notes | EI24 antibody can be used for detection of EI24 by Western blot at 1 - 2 µg/mL. Antibody can also be used for immunohistochemistry starting at 5 µg/mL. |
Gene ID | 9538 |
---|---|
Target/Specificity | EI24; At least two isoforms of EI24 are known to exist; this antibody will only detect the larger isoform. |
Reconstitution & Storage | EI24 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures. |
Precautions | EI24 Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | EI24 |
---|---|
Synonyms | PIG8 |
Function | Acts as a negative growth regulator via p53-mediated apoptosis pathway. Regulates formation of degradative autolysosomes during autophagy (By similarity). |
Cellular Location | Nucleus membrane; Multi-pass membrane protein. Cytoplasm. Endoplasmic reticulum membrane; Multi-pass membrane protein |

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Provided below are standard protocols that you may find useful for product applications.
Background
EI24 Antibody: The etoposide-induced 24 (EI24) protein is an immediate-early induction target of p53-mediated apoptosis and functions as a tumor suppressor. EI24 contains six transmembrane domains and is localized to the endoplasmic reticulum (ER). It binds to Bcl-2 and may contribute to apoptosis by modulating the activity and function of Bcl-2. EI24 is highly mutated in aggressive breast cancers and its loss in breast cancer tissue correlates with tumor invasiveness. Similar findings in invasive cervical carcinoma suggest that EI24 may be a promising therapeutic target in the treatment of invasive cancer.
References
Lehar SM, Nacht M, Jacks T, et al. Identification and cloning of EI24, a gene induced by p53 in etoposide-treated cells. Oncogene 1996; 12:1181-7.
Gu Z, Flemington C, Chittenden T, et al. ei24, a p53 response gene involved in growth suppression and apoptosis. Mol. Cell Biol. 2000; 20:233-41
Zhao X, Ayer RE, Davis SL, et al. Apoptosis factor EI24/PIG8 is a novel endoplasmic reticulum-localized Bcl-2-binding protein which is associated with suppression of breast cancer invasiveness. Cancer Res. 2005; 65:2125-9.
Mazumder D, Mitra S, Singh RK, et al. Inactivation of CHEK1 and EI24 are associated with the development of invasive cervical carcinoma: clinical and prognostic implications. Int. J. Cancer 2010; epub

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