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Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination.

Nucleic acids research | November 29, 2007 |

Lu, Haihui | Schwarz, Klaus | Lieber, Michael R
Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.

Abstract

V(D)J recombination events are initiated by cleavage at gene segments by the RAG1:RAG2 complex, which results in hairpin formation at the coding ends. ... rmation provides greater clarity on the extent to which the hairpin opening position contributes to junctional diversification in V(D)J recombination.

V(D)J recombination events are initiated by cleavage at gene segments by the RAG1:RAG2 complex, which results in hairpin formation at the coding ends. The hairpins are opened by the Artemis:DNA-PKcs complex, and then joined via the nonhomologous DNA end joining (NHEJ) process. Here we examine the opening of the hairpinned coding ends from all of the 39 functional human V(H) elements. We find that there is some sequence-dependent variation in the efficiency and even the position of hairpin opening by Artemis:DNA-PKcs. The hairpin opening efficiency varies over a 7-fold range. The hairpin opening position varies over the region from 1 to 4 nt 3' of the hairpin tip, leading to a 2-8 nt single-stranded 3' overhang at each coding end. This information provides greater clarity on the extent to which the hairpin opening position contributes to junctional diversification in V(D)J recombination.

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Fig 1. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.
Gkm823f1
Fig 1. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.

Fig 1

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Fig 2. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.
Gkm823f2
Fig 2. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.

Fig 2

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Fig 3. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.
Gkm823f3
Fig 3. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.

Fig 3

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Fig 4. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.
Gkm823f4
Fig 4. Lu, Haihui, Schwarz, Klaus, and Lieber, Michael R. "Extent to which hairpin opening by the Artemis:DNA-PKcs complex can contribute to junctional diversity in V(D)J recombination." Nucleic acids research 35.20 (2007): 6917-23. Web.

Fig 4

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