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. 2022 Oct 22;13(11):1921. doi: 10.3390/genes13111921

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(A) Domain structure of human POLDIP3. The full-length POLDIP3 protein (POLDIP3-FL or POLDIP3α) contains 421 amino acids (aa). The β variant of POLDIP3 protein (POLDIP3β) contains 392 aa with residues between 151 and 179 deleted from the POLDIP3α. The five APIM motifs, illustrated as five red rectangles, span from arginine-53 to lysine-124. The RRM domain spans from threonine-280 to asparagine-351. The serine residues and the potential kinases that phosphorylate them under different conditions are also highlighted. (B) POLDIP3 interactors that are implicated in DNA metabolism. (C) POLDIP3 interactors that are implicated in RNA metabolism.