5INW:
reference: Heparin binds lamprey angiotensinogen and promotes thrombin inhibition through a template mechanism., Wei H, Cai H, Wu J, Wei Z, Zhang F, Huang X, Ma L, Feng L, Zhang R, Wang Y, Ragg H, Zheng Y, Zhou A, J Biol Chem. 2016 Sep 28. pii: jbc.M116.725895. PMID: 27681598

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