Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Synthase-Selective Exploration of a Tunicate Microbiome by Activity-Guided Single-Cell Genomics

Journal Article · · ACS Chemical Biology
 [1];  [1];  [2];  [3];  [4];  [2];  [2];  [1];  [4];  [1]
  1. Univ. of California, San Diego, La Jolla, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Bigelow Lab. for Ocean Sciences, East Boothbay, ME (United States); Univ. of North Alabama, Florence, AL (United States)
  4. Bigelow Lab. for Ocean Sciences, East Boothbay, ME (United States)

While thousands of environmental metagenomes have been mined for the presence of novel biosynthetic gene clusters, such computational predictions do not provide evidence of their in vivo biosynthetic functionality. Using fluorescent in situ enzyme assay targeting carrier proteins common to polyketide (PKS) and nonribosomal peptide synthetases (NRPS), we applied fluorescence-activated cell sorting to tunicate microbiome to enrich for microbes with active secondary metabolic capabilities. Single-cell genomics uncovered the genetic basis for a wide biosynthetic diversity in the enzyme-active cells and revealed a member of marine Oceanospirillales harboring a novel NRPS gene cluster with high similarity to phylogenetically distant marine and terrestrial bacteria. Interestingly, this synthase belongs to a larger class of siderophore biosynthetic gene clusters commonly associated with pestilence and disease. Furthermore, this demonstrates activity-guided single-cell genomics as a tool to guide novel biosynthetic discovery.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1844526
Journal Information:
ACS Chemical Biology, Journal Name: ACS Chemical Biology Journal Issue: 5 Vol. 16; ISSN 1554-8929
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (32)

Analysis of the linker region joining the adenylation and carrier protein domains of the modular nonribosomal peptide synthetases: Functional Analysis of NRPS Linkers journal July 2014
Zymobacter palmae gen. nov., sp. nov., a new ethanol-fermenting peritrichous bacterium isolated from palm sap journal November 1993
Oceanicoccus sagamiensis gen. nov., sp. nov., a gammaproteobacterium isolated from sea water of Sagami Bay in Japan journal April 2011
Basic local alignment search tool journal October 1990
Natural product discovery through microbial genome mining journal February 2021
Charting the Complexity of the Marine Microbiome through Single-Cell Genomics journal December 2019
Targeting Bacterial Genomes for Natural Product Discovery journal January 2020
Solvatochromic and Fluorogenic Dyes as Environment-Sensitive Probes: Design and Biological Applications journal January 2017
A Single Tool to Monitor Multiple Protein–Protein Interactions of the Escherichia coli Acyl Carrier Protein journal July 2019
Reconstitution and Characterization of the Vibrio cholerae Vibriobactin Synthetase from VibB, VibE, VibF, and VibH journal December 2000
Structure of PA1221, a Nonribosomal Peptide Synthetase Containing Adenylation and Peptidyl Carrier Protein Domains journal April 2012
A Versatile Amino Acid Analogue of the Solvatochromic Fluorophore 4- N,N -Dimethylamino-1,8-naphthalimide: A Powerful Tool for the Study of Dynamic Protein Interactions journal October 2008
Bacterial diversity associated with the tunic of the model chordate Ciona intestinalis journal September 2013
Unnarmicins A and C, New Antibacterial Depsipeptides Produced by Marine Bacterium Photobacterium sp. MBIC06485 journal January 2008
Improved genome recovery and integrated cell-size analyses of individual uncultured microbial cells and viral particles journal July 2017
Discovering de novo peptide substrates for enzymes using machine learning journal December 2018
CRAGE enables rapid activation of biosynthetic gene clusters in undomesticated bacteria journal October 2019
Comprehensive single-cell transcriptome lineages of a proto-vertebrate journal July 2019
The phosphopantetheinyl transferases: catalysis of a post-translational modification crucial for life journal January 2014
Metabolic probes for imaging endosymbiotic bacteria within toxic dinoflagellates journal January 2009
Novel approaches in function-driven single-cell genomics journal June 2017
A Nearly Complete Genome of Ciona intestinalis Type A (C. robusta) Reveals the Contribution of Inversion to Chromosomal Evolution in the Genus Ciona journal October 2019
SBSPKSv2: structure-based sequence analysis of polyketide synthases and non-ribosomal peptide synthetases journal April 2017
IMG/M v.5.0: an integrated data management and comparative analysis system for microbial genomes and microbiomes journal October 2018
antiSMASH 5.0: updates to the secondary metabolite genome mining pipeline journal April 2019
IMG-ABC v.5.0: an update to the IMG/Atlas of Biosynthetic Gene Clusters Knowledgebase journal October 2019
Amphritea spongicola sp. nov., isolated from a marine sponge, and emended description of the genus Amphritea journal June 2015
SAR11 Bacteria: The Most Abundant Plankton in the Oceans journal January 2017
Capturing Single Cell Genomes of Active Polysaccharide Degraders: An Unexpected Contribution of Verrucomicrobia journal April 2012
Generation of Germ-Free Ciona intestinalis for Studies of Gut-Microbe Interactions journal December 2016
Recent Advances in Synthetic Biology Approaches to Optimize Production of Bioactive Natural Products in Actinobacteria journal November 2019
Interpreting Microbial Biosynthesis in the Genomic Age: Biological and Practical Considerations journal June 2017