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Updated Date: Stock Protein updated on 20170725
Research areas: Epigenetics and Nuclear Signaling
Target / Protein: E7
Biologically active: Not Tested
Expression system: E.coli
Species of origin: Homo sapiens (Human)
Delivery time: 3-7 business days
Uniprot ID: P06788
AA Sequence: MHGPKATLQDIVLHLEPQNEIPVDLLCHEQLSDSEEENDEIDGVNHQHLPARRAEPQRHTMLCMCCKCEARIKLVVESSADDLRAFQQLFLNTLSFVCPWCASQQ
Tag info: N-terminal 6xHis-tagged
Expression Region: 1-105aa
Protein length: Full Length
MW: 16 kDa
Relevance: E7 protein has both transforming and trans-activating activities. Disrupts the function of host retinoblastoma protein RB1/pRb, which is a key regulator of the cell cycle. Induces the disassbly of the E2F1 transcription factors from RB1, with subsequent transcriptional activation of E2F1-regulated S-phase genes. Inactivation of the ability of RB1 to arrest the cell cycle is critical for cellular transformation, uncontrolled cellular growth and proliferation induced by viral infection. Stimulation of progression from G1 to S phase allows the virus to efficiently use the cellular DNA replicating machinery to achieve viral genome replication. Interferes with histone deacetylation mediated by HDAC1 and HDAC2, leading to activation of transcription .
Reference: Interactions of SV40 large T antigen and other viral proteins with retinoblastoma tumour suppressor.Lee C., Cho Y.Rev. Med. Virol. 12:81-92(2002)
Purity: Greater than 90% as determined by SDS-PAGE.
Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.
Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.