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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: J Thromb Haemost. 2015 Jun;13(0 1):S92–S97. doi: 10.1111/jth.12896

Figure 1.

Figure 1

Structure of inorganic polyphosphate (polyP). PolyP is a linear, negatively charged polymer of phosphates held together by high-energy phosphoanhydride bonds. Microbial polyP ranges in size from tens of phosphates to thousands of phosphates long [3, 63], while polyP secreted from human platelets and mast cells is shorter and much less heterodisperse — approximately 60 to 100 phosphate units long [7, 8, 15, 34].