Immunogen sequence: LGKSHIRTDD VHAKDNTRPG ANSPEMWSEA IKILKGEYAV RAIKEHKMDQ AIIFCRTKID CDNLEQYFIQ QGGGPDKKGH QFSCVCLHGD. DDX1 (ATP-dependent RNA helicase DDX1) acts as an ATP-dependent RNA helicase. It is able to unwind both RNA-RNA and RNA-DNA duplexes.