function:DNA helicase involved in cellular proliferation. Required for maintaining the chromosome segregation and is essential for embryonic development and the prevention of aneuploidy. May function during either S, G2, or M phase of the cell cycle. Binds to both single- and double-stranded DNA.,sequence caution:Translation N-terminally extended.,similarity:Belongs to the DEAD box helicase family. DEAH subfamily. DDX11/CHL1 sub-subfamily.,similarity:Contains 1 helicase ATP-binding domain.,tissue specificity:Highly expressed in spleen, B-cells, thymus, testis, ovary, small intestine, and pancreas. Very low expression seen in the brain. Expressed in dividing cells and/or cells undergoing high levels of recombination. No expression is seen in cells signaled to terminally differentiate. Expressed in keratinocyte growth factor-stimulated cells but not in serum, EGF and IL1-beta-treated keratinocytes.,
Nucleus . Nucleus, nucleolus . Cytoplasm, cytoskeleton, spindle pole . Midbody . Cytoplasm, cytoskeleton, microtubule organizing center, centrosome . During the early stages of mitosis, localizes to condensed chromatin and is released from the chromatin with progression to metaphase. Also localizes to the spindle poles throughout mitosis and at the midbody at later stages of mitosis (metaphase to telophase) (PubMed:17105772). In interphase, colocalizes with nucleolin in the nucleolus (PubMed:26089203). .; Chromosome . (Microbial infection) Colocalizes with bovine papillomavirus type 1 regulatory protein E2 on mitotic chromosomes at early stages of mitosis. .
Expressed in melanoma cells. Not detected in epidermal melanocytes of normal skin (at protein level) (PubMed:23116066). Highly expressed in spleen, B-cells, thymus, testis, ovary, small intestine and pancreas (PubMed:9013641). Very low expression seen in brain (PubMed:9013641). Expressed in dividing cells and/or cells undergoing high levels of recombination (PubMed:9013641). No expression detected in cells signaled to terminally differentiate (PubMed:9013641). Expressed weakly in keratinocytes (PubMed:8798685).