IRGM Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| WB, IHC-P, IF, E |
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Primary Accession | A1A4Y4 |
Other Accession | AAI28169, 118764009 |
Reactivity | Human, Mouse, Rat |
Host | Rabbit |
Clonality | Polyclonal |
Isotype | IgG |
Calculated MW | Predicted: 20 kDa Observed: 24 kDa |
Application Notes | IRGM antibody can be used for detection of IRGM by Western blot at 1 - 2 µg/mL. Antibody can also be used for immunohistochemistry starting at 5 µg/mL. For immunofluorescence start at 20 µg/mL. |
Gene ID | 345611 |
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Target/Specificity | IRGM; IRGM antibody may recognize mouse IRGM2 and IRGM3. |
Reconstitution & Storage | IRGM antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures. |
Precautions | IRGM Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | IRGM |
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Synonyms | IFI1, IRGM1, LRG47 |
Function | Putative GTPase which is required for clearance of acute protozoan and bacterial infections. Functions in innate immune response probably through regulation of autophagy. May regulate proinflammatory cytokine production and prevent endotoxemia upon infection. May also play a role in macrophages adhesion and motility (By similarity). |
Cellular Location | Golgi apparatus membrane. Cell membrane. Cytoplasmic vesicle, phagosome membrane. Cytoplasmic vesicle, autophagosome membrane. Cell projection, phagocytic cup Note=Behaves like an integral membrane protein. Recruited to the plasma membrane around forming phagocytic cups, it remains associated with maturing autophagosomes. Preferentially associated with cis- and medial-Golgi. |
Tissue Location | Widely expressed (at protein level). Expressed in several tissues including colon, small bowel and peripheral blood leukocytes. |

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Background
IRGM Antibody: Autophagy, the process of bulk degradation of cellular proteins through an autophagosomic-lysosomal pathway is important for normal growth control and may be defective in tumor cells. It is involved in the preservation of cellular nutrients under starvation conditions as well as the normal turnover of cytosolic components. Two of the strongest hits implicate genes IRGM and ATG16L1, which encode proteins thought to be critical to the autophagy pathway and being significantly associated with Crohn's disease. IRGM induces autophagy and generates large autolysosomal organelles as a mechanism for the elimination of intracellular Mycobacterium tuberculosis. In mouse, IRGM belongs to a family of gamma-interferon-induced GTP-binding proteins of approximately 48 kDa that also includes IRGM2 and IRGM3; this antibody may also recognize these proteins.
References
Gozuacik D and Kimchi A. Autophagy as a cell death and tumor suppressor mechanism. Oncogene 2004; 23:2891-906.
Massey DC and Parkes M. Genome-wide association scanning highlights two autophagy genes, ATG16L1 and IRGM, as being significantly associated with Crohn's disease. Autophagy 2007; 3:649-51.
Fisher SA, Tremelling M, Anderson CA, et al. Genetic determinants of ulcerative colitis include the ECM1 locus and five loci implicated in Crohn's disease. Nat. Genet. 2008; 40:710-2.
Singh SB, Davis AS, Taylor GA, et al. Human IRGM induces autophagy to eliminate intracellular mycobacteria. Science 2006; 313:1438-41.

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