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Artistic interpretation by Erin Boyle of a Katushka fluorescent protein expression in a Xenopus laevis frog bearing the Katushka transgene under the control of a cardiac actin promoter. Protein structure representation is derived from the related protein egFP611. Frog image provided by Konstantin Lukyanov and Andrey Zaraisky.
MicroRNAs are not amenable to classical RNAi-based knockdown strategies, but genetic 'sponges' that compete microRNAs away from their natural targets create a microRNA 'knockdown'.
Fluorescence-based reagents are quickly evolving to keep pace with the demands of many research disciplines that have grown to depend on them. Caitlin Smith takes a look at recent developments.