4ZM1:
reference: Structural and Biochemical Analysis of a Single Amino-Acid Mutant of WzzBSF That Alters Lipopolysaccharide O-Antigen Chain Length in Shigella flexneri., Chang CW, Tran EN, Ericsson DJ, Casey LW, Lonhienne T, Benning F, Morona R, Kobe B, PLoS One. 2015 Sep 17;10(9):e0138266. doi: 10.1371/journal.pone.0138266., eCollection 2015. PMID: 26378781

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