6QS1:
reference: Structural basis for the C-domain selective angiotensin converting enzyme inhibition by bradykinin-potentiating peptide b (BPPb)., Sturrock ED, Lubbe L, Cozier GE, Schwager SLU, Arowolo AT, Arendse LB, Belcher ER, Acharya KR, Biochem J. 2019 May 9. pii: BCJ20190290. doi: 10.1042/BCJ20190290. PMID: 31072910

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