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    Biochem Biophys Res Commun. 1993 Jan 15;190(1):1-7.

    Cloning of a functional cDNA for human cytidine deaminase (CDD) and its use as a marker of monocyte/macrophage differentiation.

    Kühn K, Bertling WM, Emmrich F.

    Max-Planck Society, Institute for Immunology, University of Erlangen-Nürnberg, Germany.

    We have identified a cDNA clone for human cytidine deaminase (EC 3.5.4.5) during an investigation which aimed at cloning novel gene expression products related to monocyte/macrophage differentiation. The derived amino acid sequence of the clone comprises 145 residues yielding a molecular mass for the polypeptide of 16.1 kDa and exhibits a nearly 50% homology to cytidine deaminase from Bacillus subtilis. Cytidine deaminase activity of the cloned sequence could be demonstrated in a prokaryotic expression system. The mRNA is highly expressed in granulocytes while expression is very low in fibroblasts, chondrocytes, monocytes, and T- as well as B-cell lines. The mRNA can be induced in monocytes, the monocytoid cell line U937 and the myeloblastic line HL 60 by the differentiation inducer calcitriol.

    PMID: 8422236 [PubMed - indexed for MEDLINE]

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    • Calcitriol (Rocaltrol®)

      Calcitriol is a form of vitamin D that is used to treat and prevent low levels of calcium in the blood of patients whose kidneys or parathyroid glands (glands in the neck that release natural substances to control the am...