backbone (Clontech, CA) in place of the pmCherry coding
sequence (23 (link)). Desired changes were
introduced utilizing “round the horn site-directed mutagenesis”
(24 (link)) with a DpnI restriction digest
included to remove parental template. Primers were purchased from Integrated DNA
Technologies Inc. and molecular biology enzymes were purchased from New England
Biolabs. Mutations were verified by sequencing (Macrogen) and DNA for
transfection was purified using the PureYield Plasmid MaxiPrep System
(Promega).