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Fig. 2. ARF1/3/5/6 increases IRF3 phosphorylation. (A) HEK293 cells were co-transfected with FLAG-IRF3 and individual Arf GTPases. 24 h post transfection, the migration shift of IRF3 was determined by phos-tag gel electrophoresis. Red, strong phosphorylation; blue, weak phosphorylation. (B) Phylogenetic comparison between Arf family proteins. The sequences were aligned using ClustalW. Horizontal distance represents the proportion of amino acid difference and the branch values denote the bootstrap confidence values. (C) Alignment of amino acid sequences for Arf GTPases that positively regulate IRF3 phosphorylation. Common domain structure of Arf GTPases is shown above. (D) Protein sequence identity among Arf GTPases that increase phosphorylation of IRF3. Identity, percentage of identical residues; similarities, percentage of similar functional residues.
Biomolecules & Therapeutics 2023;31:48~58 https://doi.org/10.4062/biomolther.2022.119
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