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. 2022 Apr 21;13:880423. doi: 10.3389/fpls.2022.880423

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Copyright © 2022 Krupinska, Desel, Frank and Hensel.

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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Schematic comparison of motifs in selected WHIRLY proteins. AtWHIRLY1 (Arabidopsis thaliana, NP_172893), AtWHIRLY2 (A. thaliana, NP_177282.2), AtWHIRLY3 (A. thaliana, NP_178377), HvWHIRLY1 (Hordeum vulgare, BAJ96655), HvWHIRLY2 (H. vulgare, BF627441.2), SlWHIRLY1 (Solanum lycopersicum, AFY24240.1), SlWHIRLY2 (S. lycopersicum, XP_010313085.1), StWHIRLY1 (Solanum tuberosum, NP_001275155.1), StWHIRLY2 (S. tuberosum, NP_001275393.1), NtWHIRLY1 (Nicotiana tabacum, XP_016453689.1), NtWHIRLY2 (N. tabacum, XP_016511175.1), ZmWHIRLY1 (Zea mays, NP_001123589.1), ZmWHY2 (Z. mays, NP_001152589.2), OsWHIRLY1 (Oryza sativa, BAD68418.1), OsWHIRLY2 (O. sativa, NP_001045956.1). The WHIRLY domain is colored in light blue. The N-terminal organelle targeting peptides (OTP) are illustrated in grey. Below the scheme, the positions of selected amino acid residues and motifs in different WHIRLIES are listed: the PRAPP motif in yellow, the DNA-binding motif (DBM) and a putative nuclear localization motif (pNLS) in blue, a putative copper-binding motif in purple and a putative transactivation domain (pAD) in green. The organelle targeting peptides (OTP) were predicted with TargetP-2.0 (https://services.healthtech.dtu.dk/service.php?TargetP-2.0) or UniProt, (https://www.uniprot.org/), the putative nuclear localization signal (pNLS) with NLStradamus (http://www.moseslab.csb.utoronto.ca/NLStradamus/) and the putative copper-binding motif (CBM) with Motif Scan (https://myhits.sib.swiss/cgi-bin/motif_scan). The putative autoregulatory domain (pAD) was defined by Desveaux et al. (2005).