4PA5:
reference: Structural and Functional Characterization of an Ancient Bacterial Transglutaminase Sheds Light on the Minimal Requirements for Protein Cross-Linking., Fernandes CG, Placido D, Lousa D, Brito JA, Isidro A, Soares CM, Pohl J, Carrondo MA, Archer M, Henriques AO, Biochemistry. 2015 Sep 22;54(37):5723-34. doi: 10.1021/acs.biochem.5b00661. Epub , 2015 Sep 8. PMID: 26322858

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