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Figure 3
(a) Apo I PvSAE dimer structure shown in cartoon representation. (b) PvSAE dimer interface. Residues forming salt bridges and hydrogen bonds between two protomers are shown as sticks. Hydrogen bonds and salt bridges are shown as black dashed lines. The residues from one of the two symmetrical interaction interfaces are labelled. The two protomers are coloured green and cyan. (c) Domain organization of sialic acid esterases. β-­Strands are numbered according to their primary-sequence positions. The β-strands present in the hemagglutinin domain of OC43 HE have been omitted for simplicity. The catalytic serine (S), histidine (H) and aspartate (D) are labelled. The N-terminus and C terminus are denoted N and C, respectively. Structural elements are not drawn to scale.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 78| Part 5| May 2022| Pages 647-657
https://doi.org/10.1107/S2059798322003357
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