The co-translational folding and interactions of nascent protein chains: a new approach using fluorescence resonance energy transfer.
During protein biosynthesis, a nascent protein is exposed to multiple environments and proteins both inside and outside the ribosome that influence nascent chain folding and trafficking. Fluorescence resonance energy transfer between two dyes incorporated into a single nascent chain using aminoacyl-tRNA analogs can directly and selectively monitor changes in nascent chain conformation. This approach recently revealed the existence and functional ramifications of ribosome-mediated folding of nascent membrane proteins inside the ribosome and can be extended to characterize the effects of chaperones and other proteins and ligands on nascent protein folding, interactions, assembly, and avoidance of misfolding and degradation.
Johnson
Arthur E
AE
Department of Medical Biochemistry and Genetics, Texas A&M University System Health Science Center, College Station, TX 77843-1114, USA. aejohnson@tamu.edu
D031541:Fluorescence Resonance Energy Transfer; D008565:Membrane Proteins / Q000737:chemistry / Q000378:metabolism; D014176:Protein Biosynthesis; D017510:Protein Folding; D012270:Ribosomes / Q000502:physiology*
D008565:Membrane Proteins