Anti-SA1/STAG1 Antibody Picoband® Fluoro550 Conjugated

Cohesin subunit SA-1 (SA1) is a protein that in humans is encoded by the STAG1 gene. This gene is a member of the SCC3 family and is expressed in the nucleus. It encodes a component of cohesin, a multisubunit protein complex that provides sister chromatid cohesion along the length of a chromosome from DNA replication through prophase and prometaphase, after which it is dissociated in preparation for segregation during anaphase.

Mediator of RNA polymerase II transcription subunit 4; Activator-recruited cofactor 36 kDa component; ARC36; Mediator complex subunit 4; TRAP/SMCC/PC2 subunit p36 subunit; Vitamin D3 receptor-interacting protein complex 36 kDa component; DRIP36; MED4; ARC36; DRIP36; VDRIP; HSPC126

Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors.

1. Carramolino, L., Lee, B. C., Zaballos. A., Peled, A., Barthelemy, I., Shav-Tal, Y., Prieto, I., Carmi, P., Gothelf, Y., Gonzalez de Buitrago, G., Aracil, M., Marquez, G., Barbero, J. L., Zipori, D. SA-1, a nuclear protein encoded by one member of a novel gene family: molecular cloning and detection in hemopoietic organs. Gene 195: 151-159, 1997. Note: Erratum: Gene 206: 283 only, 1998. 2. Davidson, I. F., Bauer, B., Goetz, D., Tang, W., Wutz, G., Peters, J. M. DNA loop extrusion by human cohesin. Science 366: 1338-1345, 2019. 3. Lehalle, D., Mosca-Boidron, A.-L., Begtrup, A., Boute-Benejean, O., Charles, P., Cho, M. T., Clarkson, A., Devinsky, O., Duffourd, Y., Duplomb-Jego, L., Gerard, B., Jacquette, A., and 25 others. STAG1 mutations cause a novel cohesinopathy characterised by unspecific syndromic intellectual disability. J. Med. Genet. 54: 479-488, 2017.