Enables ATP hydrolysis activity; DNA/RNA helicase activity; and nucleic acid binding activity. Involved in positive regulation of formation of translation preinitiation complex and translational initiation. Located in cytoplasm. Human ortholog(s) of this gene implicated in colorectal cancer and syndromic X-linked intellectual disability. Orthologous to human DDX3X (DEAD-box helicase 3 X-linked) and DDX3Y (DEAD-box helicase 3 Y-linked).
SGD Description
ATP-dependent RNA helicase of the DEAD-box protein family; accelerates eIF4F-dependent assembly of 48S translation preinitiation complex (PIC), stimulating recruitment of mRNAs with long, structured 5'-UTRs; cooperates with DEAD-box RNA helicase and paralog Ded1p, stimulating PIC attachment and highly processive scanning by the 40S ribosomal subunit; binds G-quadruplex (G4) DNA; protein abundance increases in response to DNA replication stress