Stimulates the RNA helicase activity of EIF4A in the translation initiation complex. Binds weakly mRNA.
Cytoplasm, perinuclear region .
The short isoform is the predominant isoform and is expressed alone in liver and skeletal muscle. Both isoforms are expressed in fibroblast, spleen, testis and bone marrow. Levels are high in lung and pancreas and low in heart, frontal cortex and kidney.
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