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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Biopolymers. 2016 Nov;106(6):834–842. doi: 10.1002/bip.22876

Figure 3. Stereochemical configuration of the thioether bridges of wild type geobacillin II and geobacillin II S1T.

Figure 3

(A) GC-MS traces of hydrolyzed and derivatized Lan residues from GeoM-modified His6-GeoAII-G−8K (black), His6-GeoAII-S1T (red), dd-Lan standard (blue), dl-Lan standard (pink), and ll- Lan standard (green). (B) GC-MS traces of hydrolyzed and derivatized MeLan residues from GeoM-modified His6GeoAII-S1T (blue), dl-MeLan standard (red), and ll-MeLan standard (black). The small shoulders on the Lan peaks result from partial epimerization during hydrolysis and/or derivatization as previously reported.39 The experiments in panels A and B were conducted with different columns, which led to different retention times.