
Formalin-fixed, paraffin-embedded human Breast Carcinoma stained with Major Vault Protein Rabbit Recombinant Monoclonal Antibody (VP2897R).

Formalin-fixed, paraffin-embedded human Breast Carcinoma stained with Major Vault Protein Rabbit Recombinant Monoclonal Antibody (VP2897R).

Western Blot Analysis of A549 lysate using Major Vault Protein (MVP) Rabbit Recombinant Monoclonal Antibody (VP2897R).

Western Blot Analysis of Human Heart, Human Liver, Human Lung and Human Spleen tissue lysates using Major Vault Protein Recombinant Rabbit Monoclonal Antibody (VP2897R).

Western Blot Analysis of Kidney, Spleen and Stomach tissue lysates of different species using Major Vault Protein Recombinant Rabbit Monoclonal Antibody (VP2897R).
Recognizes a protein of 104kDa-110kDa, characterized as major vault protein (MVP). Vaults are large ribonucleoprotein particles (RNPs) present in all eukaryotic cells. They have a complex morphology, including several small molecules of RNA, but a single protein species. The MVP accounts for 70% of their mass. Their shape is reminiscent of the nucleopore central plug. Treatment of cells with estradiol increases the amount of MVP in nuclear extract. The hormone-dependent interaction of vaults with ER is prevented in vitro by sodium molybdate. Antibodies to estrogen, progesterone and glucocorticoid receptors are able to co-immunoprecipitate the MVP. MVP is overexpressed in many neoplastic tissues and cell lines. Expression of MVP predicts a poor response to chemotherapy.
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