The mechanism of patellamide macrocyclization revealed by the characterization of the PatG macrocyclase domain

Wael E Houssen, Jesko Koehnke, Andrew Bent, David Zollman, Falk Morawitz, Sally Shirran, Jeremie Vendome, Ada F. Nneoyiegbe, Laurent Trembleau, Catherine H. Botting, Margaret C. M. Smith, Marcel Jaspars, James H. Naismith

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Abstract

Peptide macrocycles are found in many biologically active natural products. Their versatility, resistance to proteolysis and ability to traverse membranes has made them desirable molecules. Although technologies exist to synthesize such compounds, the full extent of diversity found among natural macrocycles has yet to be achieved synthetically. Cyanobactins are ribosomal peptide macrocycles encompassing an extraordinarily diverse range of ring sizes, amino acids and chemical modifications. We report the structure, biochemical characterization and initial engineering of the PatG macrocyclase domain of Prochloron sp. from the patellamide pathway that catalyzes the macrocyclization of linear peptides. The enzyme contains insertions in the subtilisin fold to allow it to recognize a three-residue signature, bind substrate in a preorganized and unusual conformation, shield an acylenzyme intermediate from water and catalyze peptide bond formation. The ability to macrocyclize a broad range of nonactivated substrates has wide biotechnology applications.

Original languageEnglish
Pages (from-to)767-772
Number of pages6
JournalNature Structural & Molecular Biology
Volume19
Issue number8
DOIs
Publication statusPublished - Aug 2012

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Peptides
Prochloron
Subtilisin
Biotechnology
Biological Products
Proteolysis
Technology
Amino Acids
Membranes
Water
Enzymes

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The mechanism of patellamide macrocyclization revealed by the characterization of the PatG macrocyclase domain. / Houssen, Wael E; Koehnke, Jesko; Bent, Andrew; Zollman, David; Morawitz, Falk; Shirran, Sally; Vendome, Jeremie; Nneoyiegbe, Ada F.; Trembleau, Laurent; Botting, Catherine H.; Smith, Margaret C. M.; Jaspars, Marcel; Naismith, James H.

In: Nature Structural & Molecular Biology, Vol. 19, No. 8, 08.2012, p. 767-772.

Research output: Contribution to journalArticle

Houssen, WE, Koehnke, J, Bent, A, Zollman, D, Morawitz, F, Shirran, S, Vendome, J, Nneoyiegbe, AF, Trembleau, L, Botting, CH, Smith, MCM, Jaspars, M & Naismith, JH 2012, 'The mechanism of patellamide macrocyclization revealed by the characterization of the PatG macrocyclase domain' Nature Structural & Molecular Biology, vol. 19, no. 8, pp. 767-772. https://doi.org/10.1038/nsmb.2340
Houssen, Wael E ; Koehnke, Jesko ; Bent, Andrew ; Zollman, David ; Morawitz, Falk ; Shirran, Sally ; Vendome, Jeremie ; Nneoyiegbe, Ada F. ; Trembleau, Laurent ; Botting, Catherine H. ; Smith, Margaret C. M. ; Jaspars, Marcel ; Naismith, James H. / The mechanism of patellamide macrocyclization revealed by the characterization of the PatG macrocyclase domain. In: Nature Structural & Molecular Biology. 2012 ; Vol. 19, No. 8. pp. 767-772.
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