Fructose 6-phosphate aldolase (FSA) from Escherichia coli

The Structure of an Engineered Aldolase Catalyzing Carboligation of Arylated Ketones and Aldehydes, Capturing the Iminium Reaction Intermediate, Points Towards a Conserved Tyrosine Residue as Catalytic Acid/Base

Initial fitting using Chimera and then Phenix

Images were collected in movie-mode, 45 frames at a dose of 1.08 e-/A2.

The C-terminal TSHHHHH is a His-tag not observed in the map.

MELYLDTSDVVAVKALSRIFPLAGVTTNPSIIAAGKKPLDVVLPQLHEAMGGQGRLFAQVMATTAEGMVNDALKLRSIIA
DIVVKVPVTAEGLAAIKMLKAEGIPTLGTAVYGAAQGLLSALAGAEYVAPYVNRIDAQGGSGIQTVTDLHQLLKMHAPQA
KVLAASFKTPRQALDCLLAGCESITLPLDVAQQMISYPAVDAAVAKFEQDWQGAFGRTSITSHHHHH

MELYLDTSDVVAVKALSRIFPLAGVTTNPSIIAAGKKPLDVVLPQLHEAMGGQGRLFAQVMATTAEGMVNDALKLRSIIA
DIVVKVPVTAEGLAAIKMLKAEGIPTLGTAVYGAAQGLLSALAGAEYVAPYVNRIDAQGGSGIQTVTDLHQLLKMHAPQA
KVLAASFKTPRQALDCLLAGCESITLPLDVAQQMISYPAVDAAVAKFEQDWQGAFGRTSI