Cation-pi interactions: Difference between revisions
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==Examples== | ==Examples== | ||
<table width=' | <table width='370' align='right' cellpadding='5'><tr><td rowspan='2'> </td><td bgcolor='#eeeeee'><applet load='1gai' size='350' frame='true' align='right' scene='Cation-pi_interactions/1gai_pi4/1' /></td></tr><tr><td bgcolor='#eeeeee'><center>'''Cation-pi interactions''' </center></td></tr></table> | ||
===Examples from Gallivan and Dougherty<ref name='GD' />=== | ===Examples from Gallivan and Dougherty<ref name='GD' />=== | ||
*[[1gai]]: a 472-amino acid chain (glucoamylase) with a | *[[1gai]]: a 472-amino acid chain (glucoamylase) with a spectacular cluster of four aromatic rings (two Trp's, two Tyr's) around a single Lys108 (<scene name='Cation-pi_interactions/1gai_pi4/1'>restore initial scene</scene>). | ||
*[[1bfg]]: a 126-amino acid chain (fibroblast growth factor) with an unusually high incidence of cation-pi interactions. Gallivan and Dougherty report 5 energetically significant interactions. | *[[1bfg]]: a 126-amino acid chain (fibroblast growth factor) with an unusually high incidence of cation-pi interactions. Gallivan and Dougherty report 5 energetically significant interactions. | ||