Sulfite oxidase is a homodimeric protein localized to the intermembrane space of mitochondria. Each subunit contains a heme domain and a molybdopterin-binding domain. The enzyme catalyzes the oxidation of sulfite to sulfate, the final reaction in the oxidative degradation of the sulfur amino acids cysteine and methionine. Sulfite oxidase deficiency results in neurological abnormalities which are often fatal at an early age. Alternative splicing results in multiple transcript variants encoding identical proteins.

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Flow cytometric analysis of Sulfite oxidase expression in HT-1080 cells using Sulfite oxidase antibody . Green, isotype control; red, Sulfite oxidase.

Immunocytochemical staining of HT-1080 cells with sulfite oxidase antibody . Nuclei were stained blue with DAPI; Sulfite oxidase was stained magenta with Alexa Fluor® 647. Images were taken using Leica stellaris 5. Protein abundance based on laser Intensity and smart gain: Medium. Scale bar, 20 μm.

Western blotting analysis using Sulfite oxidase antibody . Total cell lysates (30 μg) from various cell lines were loaded and separated by SDS-PAGE. The blot was incubated with Sulfite oxidase antibody and HRP-conjugated goat anti-rabbit secondary antibody respectively. Image was developed using FeQ™ ECL Substrate Kit .

Western blotting analysis using Sulfite oxidase antibody . Sulfite oxidase expression in wild type (WT) and Sulfite oxidase shRNA knockdown (KD) HT-1080 cells with 20 μg of total cell lysates. Hsp90 α serves as a loading control. The blot was incubated with Sulfite oxidase antibody and HRP-conjugated goat anti-rabbit secondary antibody respectively. Image was developed using NaQ™ ECL Substrate Kit .

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