| 3B1D: reference: Structural insights into catalysis by betaC-S lyase from Streptococcus anginosus., Kezuka Y, Yoshida Y, Nonaka T, Proteins. 2012 Jun 6. doi: 10.1002/prot.24129. PMID: 22674431 |
This OCA 
Structure page
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(documentation).