APEX1, also known as REF1 or APE1 (Apurinic/apyrimidinic endonuclease), is responsible for the incision of DNA basic sites during base excision repair. It has also been shown to stimulate the DNA binding activity of numerous transcription factors that are involved in cancer promotion and progression. APEX1 is part of the cellular response to oxidative stress and protects cells from the genotoxic and cytotoxic effect of oxidizing agents. Source: Recombinant protein corresponding to aa1-318 from human APEX1, fused to T7-tag at N-terminal expressed in E. coli. Molecular Weight: ~36.9kD (332aa) AA Sequence: MASMTGGQQM GRGSMPKRGK KGAVAEDGDE LRTEPEAKKS KTAAKKNDKE AAGEGPALYE DPPDQKTSPS GKPATLKICS WNVDGLRAWI KKKGLDWVKE EAPDILCLQE TKCSENKLPA ELQELPGLSH QYWSAPSDKE GYSGVGLLSR QCPLKVSYGI GEEEHDQEGR VIVAEFDSFV LVTAYVPNAG RGLVRLEYRQ RWDEAFRKFL KGLASRKPLV LCGDLNVAHE EIDLRNPKGN KKNAGFTPQE RQGFGELLQA VPLADSFRHL YPNTPYAYTF WTYMMNARSK NVGWRLDYFL LSHSLLPALC DSKIRSKALG SDHCPITLYL AL Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing.. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
