Ready-to-use ELISA kits are available for the detection of IFI1, an alias of the protein, immunity related GTPase M. The official gene symbol is IRGM. The protein, with a mass of 20.1 kDa and length of 181 residues, is reported to be membrane-associated. It is a member of the TRAFAC class dynamin-like GTPase superfamily, IRG family and may be known by other names, including: IRGM1, IFI1, immunity-related GTPase family M1, LRG-47-like protein, LPS-stimulated RAW 264.7 macrophage protein 47 homolog, and immunity-related GTPase family M protein, and LRG47.