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Figure 4
Oligomeric state and electrostatic surface properties of HPI. (a) Ribbon diagram of the dimeric structure of the asymmetric unit with chain A colored green and chain B colored cyan. The two molecules are related by a twofold rotation axis perpendicular to the plane of the page. The dimer interface is made up primarily of elements of α1 and α3. (b) Space-filling diagram of the model from (a) showing packing of the interface. (c) Electrostatic map of the surface of the HPI monomer. Negatively charged surface areas are colored red and positively charged areas are colored blue. The dimer interface and negatively charged cleft are labeled. (d) Electrostatic map of the HPI dimer showing the joining of the anionic surfaces of HPI monomers into a large, negatively charged depression.

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 71| Part 6| June 2015| Pages 643-649
https://doi.org/10.1107/S2053230X1500271X
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