skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Characterization of the macrocyclase involved in the biosynthesis of RiPP cyclic peptides in plants

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [2];  [1]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. National Research Council of Canada, Saskatoon (Canada)

Enzymes that can catalyze the macrocyclization of linear peptide substrates have long been sought for the production of libraries of structurally diverse scaffolds via combinatorial gene assembly as well as to afford rapid in vivo screening methods. Orbitides are plant ribosomally synthesized and posttranslationally modified peptides (RiPPs) of various sizes and topologies, several of which are shown to be biologically active. The diversity in size and sequence of orbitides suggests that the corresponding macrocyclases may be ideal catalysts for production of cyclic peptides. Here we present the biochemical characterization and crystal structures of the plant enzyme PCY1 involved in orbitide macrocyclization. These studies demonstrate how the PCY1 S9A protease fold has been adapted for transamidation, rather than hydrolysis, of acyl-enzyme intermediates to yield cyclic products. Notably, PCY1 uses an unusual strategy in which the cleaved C-terminal follower peptide from the substrate stabilizes the enzyme in a productive conformation to facilitate macrocyclization of the N-terminal fragment. The broad substrate tolerance of PCY1 can be exploited as a biotechnological tool to generate structurally diverse arrays of macrocycles, including those with nonproteinogenic elements.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institutes of Health (NIH)
OSTI ID:
1438880
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 114, Issue 25; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

References (58)

On-resin N-methylation of cyclic peptides for discovery of orally bioavailable scaffolds journal September 2011
Selection-Based Discovery of Druglike Macrocyclic Peptides journal June 2014
Production of cyclic peptides and proteins in vivo journal November 1999
Estrogen-Like Activity of Cyclic Peptides from Vaccaria segetalis Extracts 1 journal December 1995
Structure and mechanism of the tRNA-dependent lantibiotic dehydratase NisB journal October 2014
Prolyl Oligopeptidase journal July 1998
Modularity of RiPP Enzymes Enables Designed Synthesis of Decorated Peptides journal July 2015
The prolyl oligopeptidase family journal February 2002
Dali server: conservation mapping in 3D journal May 2010
Cyanobactins—ribosomal cyclic peptides produced by cyanobacteria journal February 2010
Theoretical Studies on the Deacylation Step of Serine Protease Catalysis in the Gas Phase, in Solution, and in Elastase journal November 2004
Prolyl Oligopeptidase book January 2013
Structure of nisin journal September 1971
Genome mining for ribosomally synthesized natural products journal February 2011
The molecular diversity of toxin gene families in lethal Amanita mushrooms journal June 2014
Insights into the serine protease mechanism from atomic resolution structures of trypsin reaction intermediates journal April 2006
Cyclotide biosynthesis journal August 2013
Dissecting the Maturation Steps of the Lasso Peptide Microcin J25 in vitro journal April 2012
Peptide Macrocyclization by a Bifunctional Endoprotease journal May 2015
Total Synthesis of Circular Bacteriocins by Butelase 1 journal May 2016
Low-Barrier Hydrogen Bonds and Enzymatic Catalysis journal October 2000
Gene family encoding the major toxins of lethal Amanita mushrooms journal November 2007
Butelase 1 is an Asx-specific ligase enabling peptide macrocyclization and synthesis journal July 2014
Structure and Mechanism of the Lantibiotic Cyclase Involved in Nisin Biosynthesis journal March 2006
Induced-fit Mechanism for Prolyl Endopeptidase journal May 2010
CASTp: computed atlas of surface topography of proteins with structural and topographical mapping of functionally annotated residues journal July 2006
Structures of Cyanobactin Maturation Enzymes Define a Family of Transamidating Proteases journal November 2012
A prevalent peptide-binding domain guides ribosomal natural product biosynthesis journal July 2015
Testing the Conformational Hypothesis of Passive Membrane Permeability Using Synthetic Cyclic Peptide Diastereomers journal March 2006
Lasso Peptides: An Intriguing Class of Bacterial Natural Products journal June 2015
The biosynthesis of Caryophyllaceae-like cyclic peptides in Saponaria vaccaria L. from DNA-encoded precursors: Caryophyllaceae-like cyclic peptide biosynthesis journal June 2011
Structure Determination and Total Synthesis of Bottromycin A 2 : A Potent Antibiotic against MRSA and VRE journal January 2009
The Two-step Biosynthesis of Cyclic Peptides from Linear Precursors in a Member of the Plant Family Caryophyllaceae Involves Cyclization by a Serine Protease-like Enzyme journal March 2013
Peptide Macrocyclization Catalyzed by a Prolyl Oligopeptidase Involved in α-Amanitin Biosynthesis journal December 2014
Ribosomal production and in vitro selection of natural product-like peptidomimetics: The FIT and RaPID systems journal April 2012
The mechanism of patellamide macrocyclization revealed by the characterization of the PatG macrocyclase domain journal July 2012
Xanthomonas campestris PqqD in the pyrroloquinoline quinone biosynthesis operon adopts a novel saddle-like fold that possibly serves as a PQQ carrier journal September 2009
Enzyme-Catalyzed Macrocyclization of Long Unprotected Peptides journal June 2014
Biomimetic synthesis and optimization of cyclic peptide antibiotics journal August 2002
Structural basis for precursor protein–directed ribosomal peptide macrocyclization journal September 2016
Thiopeptide Antibiotics journal June 2005
Two Enzymes Catalyze the Maturation of a Lasso Peptide in Escherichia coli journal July 2007
Structure of a New Cyclic Nonapeptide, Segetalin F, and Vasorelaxant Activity of Segetalins from Vaccaria segetalis. journal December 2006
Thiopeptide Antibiotics journal February 2005
Cyclolinopeptide A (CLA) mediates its immunosuppressive activity through cyclophilin-dependent calcineurin inactivation journal November 1997
Structural and mechanistic analysis of two prolyl endopeptidases: Role of interdomain dynamics in catalysis and specificity journal February 2005
Identification and Quantification of Cyclolinopeptides in Five Flaxseed Cultivars journal August 2012
Kinetic Landscape of a Peptide Bond-Forming Prolyl Oligopeptidase journal April 2017
Structure Determination and Total Synthesis of Bottromycin A 2 : A Potent Antibiotic against MRSA and VRE journal January 2009
Structural analysis of leader peptide binding enables leader-free cyanobactin processing journal June 2015
The exploration of macrocycles for drug discovery — an underexploited structural class journal July 2008
Structure and biosynthesis of a macrocyclic peptide containing an unprecedented lysine-to-tryptophan crosslink journal April 2015
Identification of serine and histidine adducts in complexes of trypsin and trypsinogen with peptide and nonpeptide boronic acid inhibitors by proton NMR spectroscopy journal December 1992
Über ein Oligopeptid aus Leinsamen journal November 1959
Structure of a new cyclic nonapeptide, segetalin F, and vasorelaxant activity of segetalins from Vaccaria segetalis journal September 2006
Using Marine Natural Products to Discover a Protease that Catalyzes Peptide Macrocyclization of Diverse Substrates journal February 2009
Ribosomally synthesized and post-translationally modified peptide natural products: overview and recommendations for a universal nomenclature journal January 2013
Ribifolin, an Orbitide from Jatropha ribifolia , and Its Potential Antimalarial Activity journal February 2015

Cited By (8)

Vacuolar processing enzymes in the plant life cycle journal December 2019
Characterization of a dual function macrocyclase enables design and use of efficient macrocyclization substrates journal October 2017
Gene-guided discovery and engineering of branched cyclic peptides in plants journal October 2018
Structural determinants for peptide-bond formation by asparaginyl ligases journal May 2019
Bypassing the proline/thiazoline requirement of the macrocyclase PatG journal January 2017
Structural basis of ribosomal peptide macrocyclization in plants journal January 2018
A family of small, cyclic peptides buried in preproalbumin since the Eocene epoch journal February 2018
Characterization of the Fast and Promiscuous Macrocyclase from Plant PCY1 Enables the Use of Simple Substrates journal January 2018

Similar Records

New Role for Radical SAM Enzymes in the Biosynthesis of Thio(seleno)oxazole RiPP Natural Products
Journal Article · Wed Nov 03 00:00:00 EDT 2021 · Biochemistry · OSTI ID:1438880

Steric complementarity directs sequence promiscuous leader binding in RiPP biosynthesis
Journal Article · Tue Nov 12 00:00:00 EST 2019 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1438880

Structures of the peptide-modifying radical SAM enzyme SuiB elucidate the basis of substrate recognition
Journal Article · Mon Sep 11 00:00:00 EDT 2017 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1438880