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. 2020 Oct 21;10:570815. doi: 10.3389/fonc.2020.570815

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Copyright © 2020 Izumi, Kaneko and Nakagawara.

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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The NCYM protein has weak homology with the OCT4 protein. (A) Amino acid comparisons between the NCYM and OCT4 proteins. Identities are 24% and positives are 40%. (B) Molecular structure of the OCT4 protein. The OCT4 protein consists of four domains: the N-terminal transactivation domain (N-TAD), C-terminal transactivation domain (C-TAD), POU transcription factor-specific domain (POUs), and POU transcription factor homeodomain (POUHD). OCT4 shares weak homology with NCYM around the N-TAD and POUs domains.