Anti-AREB6/ZEB1 Antibody Picoband®

ZEB1 (Zinc Finger E Box-Binding Homeobox 1), also called TCF8, NIL2A or DELTA-EF1, is a protein that in humans is encoded by the ZEB1 gene. Fluorescence in situ hybridization localized the ZEB1 gene to chromosome 10p11.2. Krafchak et al. (2005) demonstrated a complex (core plus secondary) binding site for TCF8 in the promoter of the COL4A3 gene, mutant in Alport syndrome and which encodes collagen type IV alpha-3. They detected expression of TCF8 in cornea. Nishimura et al. (2006) found that delta-Ef1 was upregulated during differentiation in a mouse smooth muscle cell (SMC) line.

A synthetic peptide corresponding to a sequence in the middle region of human ZEB1, which shares 94.9% and 100% amino acid (aa) sequence identity with rat ZEB1.

Colocalizes with SMARCA4/BRG1 in E-cadherin-negative cells from established lines, and stroma of normal colon as well as in de-differentiated epithelial cells at the invasion front of colorectal carcinomas (at protein level) . Expressed in heart and skeletal muscle, but not in liver, spleen, or pancreas.

Adapters, Cancer, Developmental Biology, Oncoproteins/Suppressors, Organogenesis, Reproduction, Secreted, Signal Transduction, Signaling Pathways, Stem Cells, Transmembrane, Tumor Suppressors

Acts as a transcriptional repressor. Inhibits interleukin-2 (IL-2) gene expression. Enhances or represses the promoter activity of the ATP1A1 gene depending on the quantity of cDNA and on the cell type. Represses E-cadherin promoter and induces an epithelial-mesenchymal transition (EMT) by recruiting SMARCA4/BRG1. Represses BCL6 transcription in the presence of the corepressor CTBP1. Positively regulates neuronal differentiation. Represses RCOR1 transcription activation during neurogenesis. Represses transcription by binding to the E box (5'-CANNTG-3') . Promotes tumorigenicity by repressing stemness-inhibiting microRNAs.

1. Krafchak, C. M., Pawar, H., Moroi, S. E., Sugar, A., Lichter, P. R., Mackey, D. A., Mian, S., Nairus, T., Elner, V., Schteingart, M. T., Downs, C. A., Kijek, T. G., and 9 others. Mutations in TCF8 cause posterior polymorphous corneal dystrophy and ectopic expression of COL4A3 by corneal endothelial cells. Am. J. Hum. Genet. 77: 694-708, 2005. 2. Nishimura, G., Manabe, I., Tsushima, K., Fujiu, K., Oishi, Y., Imai, Y., Maemura, K., Miyagishi, M., Higashi, Y., Kondoh, H., Nagai, R. Delta-EF1 mediates TGF-beta signaling in vascular smooth muscle cell differentiation. Dev. Cell 11: 93-104, 2006.

Store 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 freeze-thaw cycles.