Hooking up: Subunit γ of an F-ATPase with 11 point mutations was ligated chemically from six peptides and then reconstituted with further subunits of the (αβ)3γ catalytic core complex. The biologically active protein with 286 residues currently represents the longest nonredundant polypeptide chain synthesized by chemical means. The yields of the five consecutive ligations, especially the last three, dropped the total yield to only 0.005 %.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.