CREG1 both activates and represses gene expression to promote cellular proliferation and inhibit differentiation. This protein antagonizes transcriptional activation and cellular transformation by E1A. It shares limited sequence similarity with E1A and binds both the general transcription factor TBP and the tumor suppressor pRb in vitro. CREG1 may contribute to the transcriptional control of cell growth and differentiation. Source: Recombinant protein corresponding to aa32-220 of human CREG1, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~23.6kD Amino Acid Sequence: MGSSHHHHHH SSGLVPRGSH MGSMRGGRDH GDWDEASRLP PLPPREDAAR VARFVTHVSD WGALATISTL EAVRGRPFAD VLSLSDGPPG AGSGVPYFYL SPLQLSVSNL QENPYATLTM TLAQTNFCKK HGFDPQSPLC VHIMLSGTVT KVNETEMDIA KHSLFIRHPE MKTWPSSHNW FFAKLNITNI WVLDYFGGPK IVTPEEYYNV TVQ 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.