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. Author manuscript; available in PMC: 2021 Jul 7.
Published in final edited form as: Biochemistry. 2020 Jun 22;59(26):2468–2478. doi: 10.1021/acs.biochem.0c00359

Figure 1.

Figure 1.

Crystal structure of Mn(II)-, Ca(II)-, and Na(I)-bound CP-Ser (PDB 4XJK).21 A heterodimer unit of S100A8 (green) and S100A9 (blue) is taken from the structure of the heterotetramer. The N- and C-termini of S100A8 and S100A9 are labeled. Mn(II) is shown in magenta; Ca(II) and Na(I) are shown in yellow. The transition-metal binding residues are shown in orange.