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Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2016 ; 113 (42): E6427-36 Nephropedia Template TP
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Regulated large-scale nucleosome density patterns and precise nucleosome positioning correlate with V(D)J recombination #MMPMID27698124
Pulivarthy SR; Lion M; Kuzu G; Matthews AGW; Borowsky ML; Morris J; Kingston RE; Dennis JH; Tolstorukov MY; Oettinger MA
Proc Natl Acad Sci U S A 2016[Oct]; 113 (42): E6427-36 PMID27698124show ga
Immunoglobulin and T-cell receptor genes are assembled in lymphoid cells from gene fragments by the process known as V(D)J recombination, which is initiated by the recombination activating gene (RAG)1/RAG2 recombinase. To ensure that recombination occurs only in the correct cell type and at the right developmental stage, multiple layers of regulation are necessary, including specific modifications of chromatin. We show that nucleosome positioning is another important factor in this regulation. Developmentally regulated changes in nucleosome positioning help to guide RAG1/RAG2 to the correct sites in recombinationally active cells. These changes occur on the scale of hundreds of kilobases, a form of regulation not typically seen in the rest of the mammalian genome.