Anti-CoREST/RCOR1 Antibody Picoband®

REST corepressor 1 also known as CoREST is a protein that in humans is encoded by the RCOR1 gene. This gene encodes a protein that is well-conserved, downregulated at birth, and with a specific role in determining neural cell differentiation. The encoded protein binds to the C-terminal domain of REST (repressor element-1 silencing transcription factor) .

Isoform 2 is undetectable whereas isoform 1 is strongly expressed in cancer cells (at protein level) . Isoform 1 and isoform 2 are widely expressed, including heart, brain, lung, pancreas, skeletal muscle, kidney, placenta and liver. .

Co-Activators/Co-Repressors, DNA/RNA, Epigenetics and Nuclear Signaling, Nuclear Receptors, Nuclear Signaling Pathways, Ribosome, RNA Processing, Transcription, Translation

May play a role in a ERBB3-regulated signal transduction pathway. Seems be involved in growth regulation. Acts a corepressor of the androgen receptor (AR) and is regulated by the ERBB3 ligand neuregulin-1/heregulin (HRG) . Inhibits transcription of some E2F1-regulated promoters, probably by recruiting histone acetylase (HAT) activity. Binds RNA. Associates with 28S, 18S and 5.8S mature rRNAs, several rRNA precursors and probably U3 small nucleolar RNA. May be involved in regulation of intermediate and late steps of rRNA processing. May be involved in ribosome assembly. Mediates cap-independent translation of specific viral IRESs (internal ribosomal entry site) (By similarity) . Regulates cell proliferation, differentiation, and survival. Isoform 1 suppresses apoptosis whereas isoform 2 promotes cell differentiation (By similarity) . .

1. Andres, M. E., Burger, C., Peral-Rubio, M. J., Battaglioli, E., Anderson, M. E., Grimes, J., Dallman, J., Ballas, N., Mandel, G. CoREST: a functional corepressor required for regulation of neural-specific gene expression. Proc. Nat. Acad. Sci. 96: 9873-9878, 1999. 2. Gocke, C. B., Yu, H. ZNF198 stabilizes the LSD1-CoREST-HDAC1 complex on chromatin through its MYM-type zinc fingers. PLoS One 3: E3255, 2008. Note: Electronic Article. 3. Lee, M. G., Wynder, C., Cooch, N., Shiekhattar, R. An essential role for CoREST in nucleosomal histone 3 lysine 4 demethylation. Nature 437: 432-435, 2005.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.

Isoform 1: Cytoplasm . Nucleus, nucleolus . Tranlocates to the nucleus upon treatment with HRG. Phosphorylation at Ser-361 by PKC/PRKCD regulates its nucleolar localization. .