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. 2009 Jan 16;106(4):1039–1044. doi: 10.1073/pnas.0806908106

Table 1.

Hairpin mutants of human RECQ1 and E.coli RecQ

Mutant Hairpin sequence
Human RECQ1
    RECQ1T1 554YLKEDYSFTAYATISYLKIG573
    Y564A RECQ1T1: 554YLKEDYSFTAAATISYLKIG573
    Δ2-Y564A RECQ1T1: 554YLKEDYS---AA----ISYLKIG573
    Δ3-Y564A RECQ1T1: 554YLKEDY-----AA----SYLKIG573
    Δ8-Y564A RECQ1T1: 554Y--------------AA------------G573
E. coli RecQ
    RecQ and RecQΔC 484VTQNIAQHSALQL496
    H491A RecQ and H491A RecQΔC 484VTQNIAQASALQL496
    Δ3 RecQ and Δ3 RecQΔC 484VTQNIA—ALQL496

The E.coli RecQ proteins denoted ΔC encompass amino acids 1-524 and lack the C-terminal HRDC domain. The strands of the β-hairpins are underlined.