Anti-H2AFY/MACROH2A1 Antibody Picoband® Fluoro488 Conjugated

Core histone macro-H2A.1 is a protein that in humans is encoded by the H2AFY gene. Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4) . The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene encodes a replication-independent histone that is a member of the histone H2A family. It replaces conventional H2A histones in a subset of nucleosomes where it represses transcription and participates in stable X chromosome inactivation. Alternative splicing results in multiple transcript variants encoding different isoforms.

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E.coli-derived human H2AFY/MACROH2A1 recombinant protein (Position: A180-K301) . Human MACROH2A1 shares 97.5% amino acid (aa) sequence identity with both mouse and rat MACROH2A1.

Downstream effector of TOR signaling pathway involved in osmotic stress response. Could be involved in the control of plant growth and development. Phosphorylates the ribosomal proteins P14, P16 and S6. Functions as a repressor of cell proliferation and required for maintenance of chromosome stability and ploidy levels through the RBR1-E2F pathway.

1. Chakravarthy, S., Gundimella, S. K. Y., Caron, C., Perche, P.-Y., Pehrson, J. R., Khochbin, S., Luger, K. Structural characterization of the histone variant macroH2A. Molec. Cell. Biol. 25: 7616-7624, 2005. 2. Kapoor, A., Goldberg, M. S., Cumberland, L. K., Ratnakumar, K., Segura, M. F., Emanuel, P. O., Menendez, S., Vardabasso, C., LeRoy, G., Vidal, C. I., Polsky, D., Osman, I., Garcia, B. A., Hernando, E., Bernstein, E. The histone variant macroH2A suppresses melanoma progression through regulation of CDK8. Nature 468: 1105-1109, 2010. 3. Kragesteen, B. K., Brancati, F., Digilio, M. C., Mundlos, S., Spielmann, M. H2AFY promoter deletion causes PITX1 endoactivation and Liebenberg syndrome. J. Med. Genet. 56: 246-251, 2019.