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. 2021 Feb 25;9:640755. doi: 10.3389/fcell.2021.640755

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Copyright © 2021 Lu and Davis.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Conserved motifs and domains of RecQ helicases from Escherichia coli, budding yeast, and humans. The RecQ helicases’ motifs and domains are presented mainly based on the annotations by the GenomeNet Database (https://www.genome.jp/), with information from published literatures. DEAD, DEAD/DEAH box helicase; Helicase C, helicase conserved C-terminal motif; RecQ-Zn-Bind, RecQ Zn²⁺-binding motif; RQC, RecQ-C-terminal domain; HRDC, helicase and RNase D-like C-terminal domain; CDT1, DNA replication factor CDT1 like; DUF1998, domain of unknown function (DUF1998); BLM_N, N-terminal region of Bloom syndrome protein; EXO, DNA_POLA_EXO1, 3′–5′ exonuclease domain; HTH_40, helix-turn-helix domain; SLD2, DNA replication and checkpoint protein; R4ZBD, RECQL4-Zn²⁺-binding motif; IRI, internal RNAPII-interacting domain; 51BD, RAD51-binding domain; SRI, SET2-RPB1 interaction motif.