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. Author manuscript; available in PMC: 2014 Aug 15.
Published in final edited form as: J Am Chem Soc. 2013 Aug 6;135(32):10.1021/ja4046795. doi: 10.1021/ja4046795

Figure 3.

Figure 3

Figure 3

(a). (L)-ShK polypeptide ligation T=0, Peak 1 = [Cys17-Cys35]; Peak 2 =[Arg1-Gln16]-α-thioester.

T=19h, *Ligation product.

Early eluting broad peaks are non-peptidic.

(b). Purified L-ShK Polypeptide Mobsd.= 4060.3±0.4Da Mcalc.(av. isotope composition)=4060.8 Da