Comment on

• Cell-free V(D)J recombination.

  Ramsden DA, Paull TT, Gellert M. Ramsden DA, et al. Nature. 1997 Jul 31;388(6641):488-91. doi: 10.1038/41351. Nature. 1997. PMID: 9242409
• Activity of DNA ligase IV stimulated by complex formation with XRCC4 protein in mammalian cells.

  Grawunder U, Wilm M, Wu X, Kulesza P, Wilson TE, Mann M, Lieber MR. Grawunder U, et al. Nature. 1997 Jul 31;388(6641):492-5. doi: 10.1038/41358. Nature. 1997. PMID: 9242410
• Yeast DNA ligase IV mediates non-homologous DNA end joining.

  Wilson TE, Grawunder U, Lieber MR. Wilson TE, et al. Nature. 1997 Jul 31;388(6641):495-8. doi: 10.1038/41365. Nature. 1997. PMID: 9242411