6B2M:
reference: Analysis of the Active Site Cysteine Residue of the Sacrificial Sulfur Insertase LarE from Lactobacillus plantarum., Fellner M, Rankin JA, Desguin B, Hu J, Hausinger RP, Biochemistry. 2018 Sep 11. doi: 10.1021/acs.biochem.8b00601. PMID: 30157639

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