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. 2022 Oct 11;10(5):2038–2048. doi: 10.1016/j.gendis.2022.10.001

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© 2022 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 1 — Structural similarity among NK2.1 and NK2.2 proteins. Schematic representation of the similarity among scro/NKX2-1/NKX2-4 and vnd/NKX2-2/NKX2-8 proteins. Colors represent the percentage of sequence homology: light gray boxes represent sequences with homology <20%; dark gray boxes represent sequences with homology between 20% and 80%; black boxes represent sequences with homology >80%. Black lines represent fragments of Drosophila proteins not present in human NK proteins. Numbers represent protein length. HD: homeodomain; SD: NK2-specific domain; TN: tinman domain. Created with Biorender.com.