A number of ELISA Kits are available that target U5-100K, an alias of the protein, DEAD-box helicase 23. The human protein, encoded by the gene DDX23, is an enzyme and member of the DEAD box helicase family, DDX23/PRP28 subfamily. The protein's cellular localization is indicated to be nuclear. Additional synonyms or past names for this protein may include: PRPF28, SNRNP100, U5-100K, U5-100KD, prp28. Homology is conserved in other species, such as Mouse, Rat, Zebrafish, Frog, Chicken.