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. 2021 Jan 5;11:574285. doi: 10.3389/fmicb.2020.574285

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Copyright © 2021 Mukhtar, Wu, Wei, Chen, Cheng, Liang and Chen.

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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An alignment of Spirostomum and Rhodospirillum RquA with methyltransferases. The RquA sequences of R. rubrum (R.rub: ABC24022), S. ambiguum (S.am1, S.am2), S. subtilis (S.sb1, S.sb2, S.sb3), S. teres (S.te1, S.te2), S. semivirscens (S.se1, S.se2, S.se3) and Spirostomum sp., (S.sp1, S.sp2, S.sp3), were aligned with UbiE (YP026269) and UbiG (NP416735), Coq5 (CAY81708) and Coq3(CAY86194) of Escherichia coli (E.c.), and Saccharomyces cerevisiae (S.c.), respectively, using ClustalW. Four signature motifs (Motif I, Motif post-I, Motif II, and Motif III) in methyltransferases (indicated with boxes) were identified by using consensus motifs described previously (Petrossian and Clarke, 2009; Lonjers et al., 2012).