Iron metabolism is essential for sustaining mammalian homeostasis. Iron uptake and distribution is a highly regulated process in mammalian cells that is monitored by two iron sensing proteins; iron regulatory protein-1 and -2 (IRP-1 and -2), also known as iron responsive element-binding protein-1 and -2 (IRE-BP-1 and -2) or aconitase 1 and 2. IRP-1 and IRP-2 are important soluble regulatory factors that mediate iron uptake and storage in mammalian cells. They are capable of either repressing translation or enhancing mRNA stability by associating with stem-loop motifs known as iron-responsive elements (IREs). IRPs respond to stress mediators, iron concentration and signaling factors, including nitrogen monoxide, cytokines and hydrogen peroxide.
Background References
1. Metodiev MD et al. Mutations in the tricarboxylic acid cycle enzyme, aconitase 2, cause either isolated or syndromic optic neuropathy with encephalopathy and cerebellar atrophy. J Med Genet 51:834-8 (2014).
2. Jiang X et al. Hyperinsulinemia induces hepatic iron overload by increasing liver TFR1 via the PI3K/IRP2 pathway. J Mol Endocrinol 53:381-92 (2014).
Western blot analysis of ACO1 on different lysates with Rabbit anti-ACO1 antibody (R1512-16) at 1/2,000 dilution.
Lane 1: Mouse liver tissue lysate Lane 2: Rat liver tissue lysate
Lysates/proteins at 40 µg/Lane.
Predicted band size: 98 kDa Observed band size: 98 kDa
Exposure time: 10 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (R1512-16) at 1/2,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
ICC staining ACO1 in Hela cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining ACO1 in HepG2 cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded human thyroid tissue using anti-ACO1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded human kidney tissue using anti-ACO1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse thyroid tissue using anti-ACO1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse ovary tissue using anti-ACO1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse kidney tissue using anti-ACO1 antibody. Counter stained with hematoxylin.
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