Recombinant full-length human GRAMD4 protein was used as the immunogen for the GRAMD4 antibody.
The gene encoding GRAMD4 (GRAM domain-containing protein 4) maps to human chromosome 22, which houses over 500 genes and is the second smallest human chromosome. GRAMD4, also designated death-inducing protein (DIP), is a 578 amino acid mitochondrial memb