VOLUME 286 (2011) PAGES 24842–24854
This article has been withdrawn by the authors.
We determined solution structures for six forms of heparan sulfate dp6–dp16 in this article. Following publication of our 2011 study, we regrettably discovered an error in the anomeric configuration of our heparan sulfate structural models. Correction of this error requires substantial reinterpretation of our experimental data. We wish to withdraw the manuscript and will submit a corrected report. We apologize for any inconvenience caused by this error.