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. 2021 Jul 23;11:692224. doi: 10.3389/fcimb.2021.692224

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Copyright © 2021 Grieshaber, Runac, Turner, Dean, Appa, Omsland and Grieshaber

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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PSI-BLAST results showing distance tree of DdbA related proteins (highlighted). DdbA homologs are present in all the chlamydiaceae and are distantly related to an endonuclease in Clostridium saccharobutylicum.