Porphyrin binding to jacalin is facilitated by the inherent plasticity of the carbohydrate-binding site: novel mode of lectin–ligand interaction

Goel, M.; Anuradha, P.; Kaur, K.J.; Maiya, B.G.; Swamy, M.J.; Salunke, D.M.

doi:10.1107/S0907444903026684

Acta Crystallographica Section D
Acta Crystallographica
Section D BIOLOGICAL CRYSTALLOGRAPHY

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Figure 4
Binding of H₂TPPS at the carbohydrate-binding site of jacalin. (a) Stereo drawing of the conformational changes seen in the jacalin (brown) molecule on porphyrin (blue) binding. The corresponding side-chain conformations in the absence of porphyin seen in case of native jacalin are depicted in yellow. (b) Stereo drawing of the hydrogen-bonding correspondence between the porphyrin and the galactopyranoside ligands of the jacalin protein. The respective hydrogen bonds are shown in ligand colours.

BIOLOGICAL
CRYSTALLOGRAPHY

ISSN: 1399-0047

Volume 60| Part 2| January 2004| Pages 281-288

doi:10.1107/S0907444903026684

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