4.1R is an alias for the gene, Erythrocyte membrane protein band 4.1, in humans. Other names include: Protein 4.1; P4.1; Band 4.1; EPB4.1; EL1; HE. The encoded protein has an amino acid length of 864 and a mass of 97.0 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Zebrafish, Frog, Chicken.