HPV16 E7 Antibody (716-281)

Western Blot: Papillomavirus 16 E7 Antibody (716-281) [NB110-17178] - Papillomavirus 16 E7 in SiHa whole cell lysate. Image from verified customer review.

Product Discontinued

HPV16 E7 Antibody (716-281) Summary

• Immunogen: Hybridoma clone has been derived from hybridization of Sp2/0 myeloma cells with spleen cells of Balb/c mice immunized with HPV oncoprotein E7, type 16.
• Localization: Nuclear
• Specificity: HPV oncoprotein E7, types 16 and 18 (both monomer and dimer forms according to WB).
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Purity: Protein G purified

Applications/Dilutions

• Dilutions:
  • Sandwich ELISA 1:100-1:2000
  • Western Blot 1:100-1:2000
• Application Notes: Recommended pair for sandwich immunoassay (coating - conjugate): NB110-17178 - NB110-17341

Reactivity Notes

Cross-reacts with Human Papilloma Virus.

Packaging, Storage & Formulations

• Storage: Store at 4C. Do not freeze.
• Buffer: PBS (pH 7.2)
• Preservative: 0.09% Sodium Azide
• Purity: Protein G purified

Alternate Names for HPV16 E7 Antibody (716-281)

• E7
• HPV16 E7
• HpV16gp2
• Links Transforming protein human papillomavirus 16
• Protein E7
• Transforming protein human papillomavirus 16
• Transforming protein

Background

The HPV E7 proteins are small (HPV16 E7 comprising 98 amino acids, 15kDa), zinc binding phosphoproteins which are localised in the nucleus. They are structurally and functionally similar to the E1A protein of subgenus C adenoviruses. The first 16 amino-terminal amino acids of HPV16 E7 contain a region homologous to a segment of the conserved region 1 (CR1) of the E1A protein of subgenus C adenoviruses. The next domain, up to amino acid 37, is homologous to the entire region 2 (CR2) of E1A. Genetic studies have established that these domains are required for cell transformation in vitro, suggesting similarities in the mechanism of transformation by these viruses. The CR2 homology region contains the LXCXE motif (residues 22-26) involved in binding to the tumour suppressor protein pRb. This sequence is also present in SV40 and polyoma large T antigens. The high risk HPV E7 proteins (of, for example, types 16 and 18) have an approximately ten-fold higher affinity for pRb protein than the low risk HPV E7 proteins (of, for example, type 6). Association of the E7 protein with pRb promotes cell proliferation by the same mechanism as the E1A proteins of adenoviruses and SV40 large T antigen. Recent studies have shown that E7 promotes degradation of Rb family proteins rather than simply inhibiting their function by complex formation. The CR2 region also contains the casein kinase II phosphorylation site (residues 31 and 32). Infection with specific types of HPV has been associated with an increased risk of developing cervical neoplasia. HPV types 6 and 11 have been associated with relatively benign diseases such as genital warts but types 16 and 18 are strongly associated with cervical, vaginal, and vulvar malignancies.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for HPV16 E7 Antibody (NB110-17178)(1)

Publication using NB110-17178

• Kitamura K, Nimura K, Ito R et al. Evaluation of HPV16 E7 expression in head and neck carcinoma cell lines and clinical specimens Scientific reports 2020-12-17 [PMID: 33335126] (WB)

Review for HPV16 E7 Antibody (NB110-17178) (1)

Average Rating: 4

(Based on 1 review)

We have 1 review tested in 1 species: Human.

reviewed by: Fugui Li WB Human 09/23/2014

Summary

• Application: Western Blot
• Sample Tested: SiHa whole cell lysate
• Species: Human