3KNQ:
reference: Elimination of a cis-proline-containing loop and turn optimization stabilizes a protein and accelerates its folding., Jakob RP, Zierer BK, Weininger U, Hofmann SD, Lorenz SH, Balbach J, Dobbek H, Schmid FX, J Mol Biol. 2010 Jun 4;399(2):331-46. Epub 2010 Apr 13. PMID: 20394751

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