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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

cDNA cloning, expression pattern, and chromosomal localization of Mlf1, murine homologue of a gene involved in myelodysplasia and acute myeloid leukemia.

The NPM- MLF1 fusion protein is expressed in blasts from patients with myelodysplasia/acute myeloid leukemia ( MDS/AML) containing the t(3;5) chromosomal rearrangement. Nucleophosmin (NPM), a previously characterized nucleolar phosphoprotein, contributes to two other fusion proteins found in lympho-hematopoietic malignancies, anaplastic large cell lymphoma (NPM-ALK) and acute promyelocytic leukemia (NPM-RARalpha). By contrast, the function of the carboxy-terminal fusion partner, myelodysplasia/ myeloid leukemia factor 1 ( MLF1), is unknown. To aid in understanding normal MLF1 function, we isolated the murine cDNA, determined the chromosomal localization of Mlf1, and defined its tissue expression by in situ hybridization. Mlf1 was highly similar to its human homologue (86% and 84% identical nucleotide and amino acid sequence, respectively) and mapped to the central region of chromosome 3, within a segment lacking known mouse mutations. Mlf1 tissue distribution was restricted during both development and postnatal life, with high levels present only in skeletal, cardiac, and selected smooth muscle, gonadal tissues, and rare epithelial tissues including the nasal mucosa and the ependyma/choroid plexus in the brain. Mlf1 transcripts were undetectable in the lympho-hematopoietic organs of both the embryonic and adult mouse, suggesting that NPM- MLF1 contributes to the genesis of MDS/AML in part by enforcing the ectopic overexpression of MLF1 within hematopoietic tissues.[1]

References

  1. cDNA cloning, expression pattern, and chromosomal localization of Mlf1, murine homologue of a gene involved in myelodysplasia and acute myeloid leukemia. Hitzler, J.K., Witte, D.P., Jenkins, N.A., Copeland, N.G., Gilbert, D.J., Naeve, C.W., Look, A.T., Morris, S.W. Am. J. Pathol. (1999) [Pubmed]
 
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