The M31 ELISA kits listed below utilize specific antibodies for the plate-based assay of M31 in various samples. M31 is another term for the CBX1 gene, which encodes the protein, chromobox 1 in humans. It has been reported that M31 plays a role in chromatin organization and DNA damage pathways, among other functions. Structurally, the CBX1 protein is described to be 185 amino acid residues in length and 21.4 kilodaltons in mass. It is localized to the nucleus of the cell. In terms of tissue specificity, it is reported to be expressed in all adult and embryonic tissues. This protein is known to be ubiquitinated. Other names for this target antigen include CBX, CBX, and HP1-BETA. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.