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. Author manuscript; available in PMC: 2014 Sep 17.
Published in final edited form as: Biochemistry. 2013 Sep 5;52(37):10.1021/bi400965u. doi: 10.1021/bi400965u

Figure 1.

Figure 1

A scheme for the proposed model of heme acquisition from metHb by the Group A Streptococcus heme acquisition system consisting of the surface proteins Shr and Shp, lipoprotein HtsA, permease HtsB, and ATPase HtsC. The model is based on the findings in Refs. 5, 7, 19, and 23–26. The model was modified from that in Ref. 9.