C3 exoenzyme from Clostridium botulinum: structure of a tetragonal crystal form and a reassessment of NAD-induced flexure

Evans, H.R.; Holloway, D.E.; Sutton, J.M.; Ayriss, J.; Shone, C.C.; Acharya, K.R.

doi:10.1107/S0907444904011680

Acta Crystallographica Section D
Acta Crystallographica
Section D BIOLOGICAL CRYSTALLOGRAPHY

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Figure 2
Stereoview of the packing of tetragonal C3bot1 crystals. (a) Perpendicular view of a portion of an `A' layer. (b) In-plane view of the same layer plus adjacent `B' layers. Symmetry-related A molecules are shown in colour, B molecules in grey and secondary-structure elements making crystal-packing contacts are labelled. Cyclic tetrametavanadate and orthovanadate ions are shown in ball-and-stick representation.

BIOLOGICAL
CRYSTALLOGRAPHY

ISSN: 1399-0047

Volume 60| Part 8| July 2004| Pages 1502-1505

doi:10.1107/S0907444904011680

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