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© 2020 Parry et al.; Published by Cold Spring Harbor Laboratory Press.
This article, published in Genes & Development, is available under a Creative Commons License (Attribution 4.0 International), as described at http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's license is described as © 2020 Parry et al.; Published by Cold Spring Harbor Laboratory Press. This article, published in Genes & Development, is available under a Creative Commons License (Attribution 4.0 International), as described at http://creativecommons.org/licenses/by/4.0/.