© 2021 Han et al.; Published by Cold Spring Harbor Laboratory Press. This article, published in Genes and Development, is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.
Except where otherwise noted, this item's license is described as © 2021 Han et al.; Published by Cold Spring Harbor Laboratory Press. This article, published in Genes and Development, is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.