The 4.1R ELISA kits listed below are analytical tools for measuring concentrations of 4.1R in various samples. 4.1R is an alternative name for the human EPB41 gene, which encodes the protein, erythrocyte membrane protein band 4.1. It has been mentioned that 4.1R plays a role in cytoskeleton organization and the cell cycle, among other functions. Structurally, the EPB41 protein is 864 amino acid residues in length and 97 kilodaltons in mass. However, as many as 7 protein isoforms have been identified. It is localized to the nucleus and cytoplasm of the cell. This protein is known to be O-glycosylated and phosphorylated. Other names for this target antigen include EL1 and HE. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.