Yeast Mre11 and Rad1 Proteins Define a Ku-Independent Mechanism To Repair Double-Strand Breaks Lacking Overlapping End Sequences

TABLE 3.

Junctional sequences observed in survivors of the mre11, rad1, rad1 yku70, and dnl4 gene deletion derivatives of SLY19a

Strain Junctional sequence Modifi- cations No. of overlapping bases No. of events
Parental TTTATAAAATTATACTGTT GTATAATTTTATAAACCCTGGTTTTGGTTTTGTAGA
AAATATTTTAATATG TTGTCATATTAAAATATTTGGGACCAAAACCAAAACATCT
JLM30 (mre11Δ) TTTATAAAATTATA(CTGTT) (AACAG)TATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −5/−5 4 1
TTTATAAAATTATA(CTGTT) (AACAGTATAATT)TTATAAACCCTGGTTTTGGTTTTGTAG −5/−12 10 (12) 2
TTTATAA(AATTATACTGTT) (AACAG)TATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −12/−5 10 (12) 2
AAACC(AGGGTTTA--TGTT) (AACAGTATAATTTTAT)AAACCCTGGTTTTGGTTTTGTAG −23/−16 10 (12) 4
TTTATAAAATTATACTG(TT) (AACAGTATAA---GAGTGGTTGACGAATAATTATG)CTGA −2/−60 9 (10) 9
TTTATAAAATTAT(ACTGTT) (AACAGTATAA---GAGTGGTTGACGAAT)AATTATGCTGA −6/−53 9 (10) 1
ACCAAAAACC(AAA--TGTT) (AACAGTATAATTTTAT)AAACCCTGGTTTTGGTTTTGTAG −29/−16 5 1
EMK13 (rad1Δ) TTTATAAAATTATACTGTT (AA)CCAGTATAATTTTATAAACCCTGGTTTTGGTTTTGTA 0/−2,+1 0 1
TTTATAAAATTATAC(TGTT) (A)ACAGTATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −4/−1 2 7
TTTATAAAATTATACTGT(T) (AACA)GTATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −1/−4 2 2
TTTATAAAATTATAC(TGTT) (AACA)GTATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −4/−4 0 5
TTTATAAAATTA(TACTGTT) AACAGTATAATTTTATAAACCCTGGTTTTGGTTTTGTAGAG −7/0 1 1
TTTATAAAATTATA(CTGTT) (AACAG)TATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −5/−5 4 2
AACCAG(GGTTT---CTGTT) (AA)CAGTATAATTTTATAAACCCTGGTTTTGGTTTTGTAG −21/−2 10 (12) 1
TTTATAAA(ATTATACTGTT) (AACAGTATAA)TTTTATAAACCCTGGTTTTGGTTTTGTAG −11/−11 10 (12) 1
JLM31 (rad1Δ yku70Δ) TTTATAAAATTATA(CTGTT) (AACAGTATAATT)TTATAAACCCTGGTTTTGGTTTTGTAG −5/−12 10 (12) 1
TTTATAAAATTATACTG(TT) (AACAGTATAATTTTATAAACC)CTGGTTTTGGTTTTGTAG −2/−21 3 1
AAAACCAGGGTTT(AT--TGTT) (AACAGTATAATTTTATAAACCCT)GGTTTTGGTTTTGTAG −16/−23 10 (12) 2
TTTATAAAATTATACTG(TT) (AACAGTATAA---GAGTGGTTGACGAATAATTATG)CTGA −2/−60 9 (10) 3
JLM32 (dnl4Δ) TTTATAAAATTATA(CTGTT) (AACAGTATAATT)TTATAAACCCTGGTTTTGGTTTTGTAG −5/−12 10 (12) 1
TTTATAAAATTATACTG(TT) (AACAGTATAA---GAGTGGTTGACGAATAATTATG)CTGA −2/−60 9 (10) 17
  • a Top strand sequences at the sites of joining between two HO breaks in Ura survivors of the mre11, rad1, rad1 yku70, and dnl4 gene deletion derivatives of SLY19 are shown, as described in Table 2. The insertions are shown in italic.

This Article

  1. Mol. Cell. Biol. vol. 23 no. 23 8820-8828