@article {73663, title = {Engineered Biosynthesis of beta-Alkyl Tryptophan Analogues}, journal = {Angewandte Chemie-International Edition}, volume = {57}, number = {45}, year = {2018}, month = {Nov}, pages = {14764-14768}, isbn = {1433-7851}, doi = {10.1002/anie.201807998}, author = {Boville, C. E. and Scheele, R. A. and Koch, P. and Brinkmann-Chen, S. and A. R. Buller and Arnold, F. H.} }