If you are interested in studying the localization of a prot
If you are interested in studying the localization of a protein in a bacterial cell, what techniques would provide you with the best information?
Solution
Immunolabeling or tagging (such as with a green fluorescent protein) to view localization using fluorescence microscope are often used.Computational tools can now provide fast and accurate localization predictions for many organisms.This has resulted in subcellular localization prediction becoming one of the challenges being successfully aided by bioinformatics,and machine learning.
Fluorescent protein tag enables live-cell time-lapse imaging, with multiple colours for different target molecules.
Immunofluorescence:A specific antiserum or monoclonal antibody is used to detect the target protein.Antibodies are either labelled directly or detected by a fluorescent secondary antibody.It can be applied to native proteins in wild-type cells and unperturbed cells that grow in liquid culture.
Structured illumination microscopy:A \'super-resolution\' method in which fluorescence is induced by a patterned light source and a computer algorithm is used to reconstruct an image.
Stimulated emission depletion microscopy:A highly technical method in which fluorophores are stimulated by an initial laser pulse and then the light emitted is narrowed to a fine point by a second laser pulse.
Wide-field epifluorescence:It uses a conventional light microscope arranged with filters that allow only the emitted fluorescent light from the specimen to be imaged.
