Journal: Frontiers in Bioengineering and Biotechnology
Article Title: Magnetic protein aggregates generated by supramolecular assembly of ferritin cages - a modular strategy for the immobilization of enzymes
doi: 10.3389/fbioe.2024.1478198
Figure Lengend Snippet: Assessment of the magnetic properties displayed by the crude cell extracts (CCEs) containing different citrine-ferritin fusion proteins using permanent neodymium ring magnets. The magnets were arranged in a 2×2 grid as shown in the leftmost panel, and covered with a black paper to aid visualization, onto which the mini petri dishes containing the CCE-OptiPrep density gradient medium mixtures (17% OptiPrep) were placed. Upon placement over the permanent magnets, the CCEs were left undisturbed for up to 69 h to follow the pattern formation. The contrast of all images was increased by 20%.
Article Snippet: To visualize the magnetic properties of citrine-ferritin fusions, 5 mL of crude cell extracts (CCE) of constructs overproducing the citrine-ferritin fusions were mixed with 1 mL of OptiPrep Density Gradient Medium (STEMCELL Technologies Germany GmbH, Köln, Germany) and transferred to mini petri dishes, corresponding to 10% iodixanol (w/v) concentration in the mixture.
Techniques: