Recombinant Human Heterogeneous nuclear ribonucleoprotein K (HNRNPK), partial
Description
Purity > 90% as determined by SDS-PAGE. MW: 77.8kDa. Partial: 3-459aa. N-terminal GST-tagged. Homo sapiens (Human). One of the major pre-mRNA-binding proteins. Binds tenaciously to poly (C) sequences. Likely to play a role in the nuclear metabolism of hnRNAs, particularly for pre-mRNAs that contain cytidine-rich sequences. Can also bind poly (C) single-stranded DNA. Plays an important role in p53/TP53 response to DNA damage, acting at the level of both transcription activation and repression. When sumoylated, acts as a transcriptional coactivator of p53/TP53, playing a role in p21/CDKN1A and 14-3-3 sigma/SFN induction. As far as transcription repression is concerned, acts by interacting with long intergenic RNA p21 (lincRNA-p21), a non-coding RNA induced by p53/TP53. This interaction is necessary for the induction of apoptosis, but not cell cycle arrest.3 Publications