Scalable secondary metabolite production in Streptomyces using a plug-and-play system

scalable-secondary-metabolite-production-in-streptomyces-using-a-plug-and-play-system

Data availability

The primary data supporting the findings of this study are accessible within the paper and Supplementary Information. Additional data can be obtained from the corresponding author upon reasonable request. Source data are provided with this paper.

References

  1. Chater, K. F. Streptomyces inside-out: a new perspective on the bacteria that provide us with antibiotics. Philos. Trans. R. Soc. Lond. B Biol. Sci. 361, 761–768 (2006).

    PubMed  PubMed Central  CAS  Google Scholar 

  2. Hutchings, M. I., Truman, A. W. & Wilkinson, B. Antibiotics: past, present and future. Curr. Opin. Microbiol. 51, 72–80 (2019).

    PubMed  CAS  Google Scholar 

  3. Zhang, L. & Demain, A. L. (eds) Natural Products: Drug Discovery and Therapeutic Medicine. (Humana Press, 2005).

  4. Li, S. et al. Polyketide pesticides from actinomycetes. Curr. Opin. Biotechnol. 69, 299–307 (2021).

    PubMed  CAS  Google Scholar 

  5. Wang, W. et al. Harnessing the intracellular triacylglycerols for titer improvement of polyketides in Streptomyces. Nat. Biotechnol. 38, 76–83 (2020).

    PubMed  Google Scholar 

  6. Yan, H., Li, S. & Wang, W. Reprogramming naturally evolved switches for Streptomyces chassis development. Trends Biotechnol. 43, 12–15 (2025).

    PubMed  CAS  Google Scholar 

  7. Zhang, Y. X. et al. Genome shuffling leads to rapid phenotypic improvement in bacteria. Nature 415, 644–646 (2002).

    PubMed  CAS  Google Scholar 

  8. Li, J. et al. A non-carboxylative route for the efficient synthesis of central metabolite malonyl-CoA and its derived products. Nat. Catal. 7, 361–374 (2024).

    CAS  Google Scholar 

  9. Thaker, M. N. et al. Identifying producers of antibacterial compounds by screening for antibiotic resistance. Nat. Biotechnol. 31, 922–927 (2013).

    PubMed  CAS  Google Scholar 

  10. Barka, E. A. et al. Taxonomy, physiology, and natural products of actinobacteria. Microbiol. Mol. Biol. Rev. 80, 1–43 (2016).

    PubMed  Google Scholar 

  11. Nett, M., Ikeda, H. & Moore, B. S. Genomic basis for natural product biosynthetic diversity in the actinomycetes. Nat. Prod. Rep. 26, 1362–1384 (2009).

    PubMed  PubMed Central  CAS  Google Scholar 

  12. Miethke, M. et al. Towards the sustainable discovery and development of new antibiotics. Nat. Rev. Chem. 5, 726–749 (2021).

    PubMed  PubMed Central  CAS  Google Scholar 

  13. Montano Lopez, J., Duran, L. & Avalos, J. L. Physiological limitations and opportunities in microbial metabolic engineering. Nat. Rev. Microbiol. 20, 35–48 (2022).

    PubMed  CAS  Google Scholar 

  14. Wang, W. et al. Angucyclines as signals modulate the behaviors of Streptomyces coelicolor. Proc. Natl Acad. Sci. USA 111, 5688–5693 (2014).

    PubMed  PubMed Central  CAS  Google Scholar 

  15. van Wezel, G. P. & McDowall, K. J. The regulation of the secondary metabolism of Streptomyces: new links and experimental advances. Nat. Prod. Rep. 28, 1311–1333 (2011).

    PubMed  Google Scholar 

  16. Li, S., Li, Z., Pang, S., Xiang, W. & Wang, W. Coordinating precursor supply for pharmaceutical polyketide production in Streptomyces. Curr. Opin. Biotechnol. 69, 26–34 (2021).

    PubMed  CAS  Google Scholar 

  17. Qiu, S. et al. Building a highly efficient Streptomyces super-chassis for secondary metabolite production by reprogramming naturally-evolved multifaceted shifts. Metab. Eng. 81, 210–226 (2023).

    PubMed  Google Scholar 

  18. Wu, J. et al. Developing a pathway-independent and full-autonomous global resource allocation strategy to dynamically switching phenotypic states. Nat. Commun. 11, 5521 (2020).

    PubMed  PubMed Central  CAS  Google Scholar 

  19. Gupta, A., Reizman, I. M., Reisch, C. R. & Prather, K. L. Dynamic regulation of metabolic flux in engineered bacteria using a pathway-independent quorum-sensing circuit. Nat. Biotechnol. 35, 273–279 (2017).

    PubMed  PubMed Central  CAS  Google Scholar 

  20. Din, M. O. et al. Synchronized cycles of bacterial lysis for in vivo delivery. Nature 536, 81–85 (2016).

    PubMed  PubMed Central  CAS  Google Scholar 

  21. Alnahhas, R. N. et al. Majority sensing in synthetic microbial consortia. Nat. Commun. 11, 3659 (2020).

    PubMed  PubMed Central  CAS  Google Scholar 

  22. Polkade, A. V., Mantri, S. S., Patwekar, U. J. & Jangid, K. Quorum sensing: an under-explored phenomenon in the phylum actinobacteria. Front. Microbiol. 7, 131 (2016).

    PubMed  PubMed Central  Google Scholar 

  23. Biarnes-Carrera, M., Breitling, R. & Takano, E. Butyrolactone signalling circuits for synthetic biology. Curr. Opin. Chem. Biol. 28, 91–98 (2015).

    PubMed  CAS  Google Scholar 

  24. Zhou, S. et al. Molecular basis for control of antibiotic production by a bacterial hormone. Nature 590, 463–467 (2021).

    PubMed  CAS  Google Scholar 

  25. Takano, E., Chakraburtty, R., Nihira, T., Yamada, Y. & Bibb, M. J. A complex role for the gamma-butyrolactone SCB1 in regulating antibiotic production in Streptomyces coelicolor A3(2). Mol. Microbiol. 41, 1015–1028 (2001).

    PubMed  CAS  Google Scholar 

  26. Corre, C., Song, L., O’Rourke, S., Chater, K. F. & Challis, G. L. 2-Alkyl-4-hydroxymethylfuran-3-carboxylic acids, antibiotic production inducers discovered by Streptomyces coelicolor genome mining. Proc. Natl Acad. Sci. USA 105, 17510–17515 (2008).

    PubMed  PubMed Central  CAS  Google Scholar 

  27. Kitani, S. et al. Avenolide, a Streptomyces hormone controlling antibiotic production in Streptomyces avermitilis. Proc. Natl Acad. Sci. USA 108, 16410–16415 (2011).

    PubMed  PubMed Central  CAS  Google Scholar 

  28. Wang, W. et al. Identification of a butenolide signaling system that regulates nikkomycin biosynthesis in Streptomyces. J. Biol. Chem. 293, 20029–20040 (2018).

    PubMed  PubMed Central  CAS  Google Scholar 

  29. Cuthbertson, L. & Nodwell, J. R. The TetR family of regulators. Microbiol. Mol. Biol. Rev. 77, 440–475 (2013).

    PubMed  PubMed Central  CAS  Google Scholar 

  30. Wang, W. et al. An engineered strong promoter for Streptomycetes. Appl. Environ. Microbiol. 79, 4484–4492 (2013).

    PubMed  PubMed Central  CAS  Google Scholar 

  31. Bhukya, H., Bhujbalrao, R., Bitra, A. & Anand, R. Structural and functional basis of transcriptional regulation by TetR family protein CprB from S. coelicolor A3(2). Nucleic Acids Res. 42, 10122–10133 (2014).

    PubMed  PubMed Central  CAS  Google Scholar 

  32. Wang, J. et al. A novel role of ‘pseudo’γ-butyrolactone receptors in controlling γ-butyrolactone biosynthesis in Streptomyces. Mol. Microbiol. 82, 236–250 (2011).

    PubMed  CAS  Google Scholar 

  33. Horbal, L., Fedorenko, V. & Luzhetskyy, A. Novel and tightly regulated resorcinol and cumate-inducible expression systems for Streptomyces and other actinobacteria. Appl. Microbiol. Biotechnol. 98, 8641–8655 (2014).

    PubMed  CAS  Google Scholar 

  34. Wang, X., Fu, Y., Wang, M. & Niu, G. Synthetic cellobiose-inducible regulatory systems allow tight and dynamic controls of gene expression in Streptomyces. ACS Synth. Biol. 10, 1956–1965 (2021).

    PubMed  CAS  Google Scholar 

  35. Hou, J. et al. Engineering the ultrasensitive transcription factors by fusing a modular oligomerization domain. ACS Synth. Biol. 7, 1188–1194 (2018).

    PubMed  CAS  Google Scholar 

  36. Lou, C. et al. Synthesizing a novel genetic sequential logic circuit: a push‐on push‐off switch. Mol. Syst. Biol. 6, 350 (2010).

    PubMed  PubMed Central  Google Scholar 

  37. Mascher, T. Past, present, and future of extracytoplasmic function σ factors: distribution and regulatory diversity of the third pillar of bacterial signal transduction. Annu. Rev. Microbiol. 77, 625–644 (2023).

    PubMed  CAS  Google Scholar 

  38. Seipke, R. F., Patrick, E. & Hutchings, M. I. Regulation of antimycin biosynthesis by the orphan ECF RNA polymerase sigma factor σAntA. PeerJ 2, e253 (2014).

    PubMed  PubMed Central  Google Scholar 

  39. Bai, C. et al. Exploiting a precise design of universal synthetic modular regulatory elements to unlock the microbial natural products in Streptomyces. Proc. Natl Acad. Sci. USA 112, 12181–12186 (2015).

    PubMed  PubMed Central  CAS  Google Scholar 

  40. Sun, P. et al. Spiroketal formation and modification in avermectin biosynthesis involves a dual activity of AveC. J. Am. Chem. Soc. 135, 1540–1548 (2013).

    PubMed  CAS  Google Scholar 

  41. Kitani, S., Ikeda, H., Sakamoto, T., Noguchi, S. & Nihira, T. Characterization of a regulatory gene, aveR, for the biosynthesis of avermectin in Streptomyces avermitilis. Appl. Microbiol. Biotechnol. 82, 1089–1096 (2009).

    PubMed  CAS  Google Scholar 

  42. Qiu, J. et al. Overexpression of the ABC transporter AvtAB increases avermectin production in Streptomyces avermitilis. Appl. Microbiol. Biotechnol. 92, 337–345 (2011).

    PubMed  CAS  Google Scholar 

  43. Hao, Y. et al. Avermectin B1a production in Streptomyces avermitilis is enhanced by engineering aveC and precursor supply genes. Appl. Microbiol. Biotechnol. 106, 2191–2205 (2022).

    PubMed  CAS  Google Scholar 

  44. Yang, M., Hao, Y., Liu, G. & Wen, Y. Enhancement of acyl-CoA precursor supply for increased avermectin B1a production by engineering meilingmycin polyketide synthase and key primary metabolic pathway genes. Microb. Biotechnol. 17, e14470 (2024).

    PubMed  PubMed Central  CAS  Google Scholar 

  45. Madduri, K. et al. Production of the antitumor drug epirubicin (4′-epidoxorubicin) and its precursor by a genetically engineered strain of Streptomyces peucetius. Nat. Biotechnol. 16, 69–74 (1998).

    PubMed  CAS  Google Scholar 

  46. Malla, S., Niraula, N. P., Liou, K. & Sohng, J. K. Improvement in doxorubicin productivity by overexpression of regulatory genes in Streptomyces peucetius. Res. Microbiol. 161, 109–117 (2010).

    PubMed  CAS  Google Scholar 

  47. Malla, S., Niraula, N. P., Liou, K. & Sohng, J. K. Enhancement of doxorubicin production by expression of structural sugar biosynthesis and glycosyltransferase genes in Streptomyces peucetius. J. Biosci. Bioeng. 108, 92–98 (2009).

    PubMed  CAS  Google Scholar 

  48. Scotti, C. & Hutchinson, C. R. Enhanced antibiotic production by manipulation of the Streptomyces peucetius dnrH and dnmT genes involved in doxorubicin (adriamycin) biosynthesis. J. Bacteriol. 178, 7316–7321 (1996).

    PubMed  PubMed Central  CAS  Google Scholar 

  49. Song, E. et al. Proteomic approach to enhance doxorubicin production in panK-integrated Streptomyces peucetius ATCC 27952. J. Ind. Microbiol. Biotechnol. 38, 1245–1253 (2011).

    PubMed  CAS  Google Scholar 

  50. Ryu, Y. G., Butler, M. J., Chater, K. F. & Lee, K. J. Engineering of primary carbohydrate metabolism for increased production of actinorhodin in Streptomyces coelicolor. Appl. Environ. Microbiol. 72, 7132–7139 (2006).

    PubMed  PubMed Central  CAS  Google Scholar 

  51. Alam, K. et al. Streptomyces: the biofactory of secondary metabolites. Front. Microbiol. 13, 968053 (2022).

    PubMed  PubMed Central  Google Scholar 

  52. Breitling, R. et al. Synthetic biology approaches to actinomycete strain improvement. FEMS Microbiol. Lett. 368, fnab060 (2021).

    PubMed  PubMed Central  CAS  Google Scholar 

  53. Breitling, R. & Takano, E. Synthetic biology of natural products. Cold Spring Harb. Perspect. Biol. 8, a023994 (2016).

    PubMed  PubMed Central  Google Scholar 

  54. Moser, F. et al. Genetic circuit performance under conditions relevant for industrial bioreactors. ACS Synth. Biol. 1, 555–564 (2012).

    PubMed  PubMed Central  CAS  Google Scholar 

  55. Trosset, J. Y. & Carbonell, P. Synergistic synthetic biology: units in concert. Front. Bioeng. Biotechnol. 1, 11 (2013).

    PubMed  PubMed Central  Google Scholar 

  56. Xia, P. F., Ling, H., Foo, J. L. & Chang, M. W. Synthetic genetic circuits for programmable biological functionalities. Biotechnol. Adv. 37, 107393 (2019).

    PubMed  Google Scholar 

  57. Kieser, T., Bibb, M. J., Buttner, M. J., Chater, K. F. & Hopwood, D. A. Practical Streptomyces Genetics (The John Innes Foundation, 2000).

  58. Wang, W. X. et al. Identification of a butenolide signaling system that regulates nikkomycin biosynthesis in Streptomyces. J. Biol. Chem. 293, 20029–20040 (2018).

    PubMed  PubMed Central  CAS  Google Scholar 

  59. Rodriguez-Garcia, A., Combes, P., Perez-Redondo, R., Smith, M. C. & Smith, M. C.Natural and synthetic tetracycline-inducible promoters for use in the antibiotic-producing bacteria Streptomyces. Nucleic. Acids Res. 33, e87 (2005).

    PubMed  PubMed Central  Google Scholar 

  60. Wang, W. et al. Development of a synthetic oxytetracycline-inducible expression system for Streptomycetes using de novo characterized genetic parts. ACS Synth. Biol. 5, 765–773 (2016).

    PubMed  CAS  Google Scholar 

  61. Blin, K., Pedersen, L. E., Weber, T. & Lee, S. Y. CRISPy-web: an online resource to design sgRNAs for CRISPR applications. Synth. Syst. Biotechnol. 1, 118–121 (2016).

    PubMed  PubMed Central  Google Scholar 

  62. Yan, H. et al. A rational multi-target combination strategy for synergistic improvement of non-ribosomal peptide production. Nat. Commun. 16, 1883 (2025).

    PubMed  PubMed Central  CAS  Google Scholar 

  63. Chen, H. H. et al. High-yield porphyrin production through metabolic engineering and biocatalysis. Nat. Biotechnol. https://doi.org/10.1038/s41587-024-02267-3 (2024).

    PubMed  PubMed Central  Google Scholar 

  64. Cao, J. et al. Harnessing a previously unidentified capability of bacterial allosteric transcription factors for sensing diverse small molecules in vitro. Sci. Adv. 4, eaau4602 (2018).

    PubMed  PubMed Central  CAS  Google Scholar 

  65. Livak, K. J. & Schmittgen, T. D. Analysis of relative gene expression data using real-time quantitative PCR and the 2−ΔΔCt method. Methods 25, 402–408 (2001).

    PubMed  CAS  Google Scholar 

  66. Zhou, H. et al. Systematic development of a highly efficient cell factory for 5-aminolevulinic acid production. Trends Biotechnol. 42, 1479–1502 (2024).

    PubMed  CAS  Google Scholar 

Download references

Acknowledgements

This work was supported by the National Natural Science Foundation of China (W2411016 and 32170095 to W.W. and 32121005 and 32327801 to L.Z.), the National Key Research and Development Program of China (2020YFA0907800 to L.Z. and 2022YFC2105400 to C.Z.), the Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (CAAS-CSCB-202401 to S.L.), the Youth Innovation Promotion Association CAS (Y202027 to W.W.) and the 111 Project (B18022 to L.Z). We would like to thank Z. Fan, G. Ai, E. Li and T. Zhao from IMCAS for the BLI assay, LC–MS/MS analysis, UPLC–MS analysis and flow cytometry assay, respectively.

Author information

Author notes

  1. These authors contributed equally: Bowen Yang, Zilong Li, Jingyu Zhang.

Authors and Affiliations

  1. State Key Laboratory of Bioreactor Engineering, and School of Biotechnology, East China University of Science and Technology (ECUST), Shanghai, China

    Bowen Yang, Jingyu Zhang, Xueting Liu, Chengyu Zhang, Gao-Yi Tan, Lixin Zhang & Weishan Wang

  2. State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China

    Bowen Yang, Zilong Li, Shiwen Qiu, Zonglin Liang, Hao Yan, Defeng Li, Shanshan Zhou, Chengyu Zhang & Weishan Wang

  3. Beijing Key Laboratory of Genetic Element Biosourcing & Intelligent Design for Biomanufacturing, Beijing, China

    Zilong Li & Weishan Wang

  4. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China

    Yanyan Zhang & Shanshan Li

  5. Hebei Xingbai Agrochem Group Company, Ltd, Shijiazhuang, China

    Lihong Liu, Bing Xia & Lianqun Bao

  6. School of Life Sciences, University of Warwick, Coventry, UK

    Christophe Corre

  7. College of Life Sciences, Shanghai Normal University, Shanghai, China

    Yinhua Lu

  8. Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China

    Xuekui Xia

  9. Shanghai Collaborative Innovation Center for Biomanufacturing Technology (SCIBT), Shanghai, China

    Lixin Zhang

  10. University of Chinese Academy of Sciences, Beijing, China

    Weishan Wang

Authors

  1. Bowen Yang
  2. Zilong Li
  3. Jingyu Zhang
  4. Shiwen Qiu
  5. Xueting Liu
  6. Zonglin Liang
  7. Hao Yan
  8. Yanyan Zhang
  9. Lihong Liu
  10. Bing Xia
  11. Lianqun Bao
  12. Defeng Li
  13. Shanshan Zhou
  14. Christophe Corre
  15. Chengyu Zhang
  16. Yinhua Lu
  17. Gao-Yi Tan
  18. Xuekui Xia
  19. Shanshan Li
  20. Lixin Zhang
  21. Weishan Wang

Contributions

W.W., Z. Li, S.L. and L.Z. conceptualized and supervised the project. B.Y. and S.Q. designed and performed the main experiments. B.X., L.L. and L.B. performed the large-scale fermentations and field trials. S.Q. and D.L. performed the molecular docking analysis. Y.L. conducted the response surface analysis. Z. Liang, C.Z. and Y.L. participated in the experiments. W.W., B.Y. and Z. Li wrote the manuscript. J.Z., S.Z., C.C., X.X. and L.Z. edited the manuscript.

Corresponding authors

Correspondence to Shanshan Li, Lixin Zhang or Weishan Wang.

Ethics declarations

Competing interests

W.W., B.Y. and Z.L. have filed provisional patents for this work to the China National Intellectual Property Administration (CN 202510569133.9 and CN 202510569134.3). The remaining authors declare no competing interests.

Peer review

Peer review information

Nature Biotechnology thanks Shuguang Zhang and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Extended data

Extended Data Fig. 1 DNA alignment of identified binding sites of the promoters regulated by quorum sensing receptors.

The sequences were aligned using MUSCLE, the conserved palindromic sequences (identity > 70%) were highlighted in yellow, the completely conserved DNA bases were marked with asterisks.

Extended Data Fig. 2 Determination of interaction between Ptrig and receptors in vitro.

a, Purification of known quorum sensing signalling molecule receptors. The purity was confirmed by SDS-PAGE analysis. Lane 1: His6-ScbR (24.9 kDa), lane 2: His6-AvaR1 (26.9 kDa), lane 3: His6-SabR1 (25.5 kDa), lane 4: His6-MmfR (25.1 kDa). b, Purification of putative quorum sensing signaling molecule receptors. The purity of the putative receptors was also confirmed by SDS-PAGE analysis. Lane 1: His6-WP_067441803.1 (24.4 kDa), Lane 2: His6-WP_205368416.1 (26.7 kDa), lane 3: His6-WP_185944307.1 (26.2 kDa), lane 4: His6-WP_012999107.1 (24.3 kDa), lane 5: His6-WP_242709678.1 (26.9 kDa), lane 6: His6-WP_226048631.1 (23.5 kDa). c, d, e and f, Interaction between Ptrig and representative receptors determined by EMSA. KasO* intergenic region (97 bp) was used as negative control (lane 1). The concentration of both kasO* and Ptrig DNA fragments used was 1 pmol. Lanes 2 to 6 show the addition of increasing amounts of receptors (0, 0.8, 1.6, 2.4, 3.2 pmol respectively) to the protein–DNA complexes. The SDS-PAGE and the EMSA assay were performed three times (n = 3; replicates are shown in Source Data files).

Source data

Extended Data Fig. 3 Determination of Ptrig response to native quorum sensing systems.

a, Temporal profiles of fluorescence intensity and intracellular MMF1 quorum sensing signaling molecule concentration in S. coelicolor A3(2) Δ scbA. b, Temporal profiles of fluorescence in quorum sensing mutant strains Δ scbR and Δ scbA, respectively. Values are shown as mean ± s.d. from three (n = 3) independent biological replicates.

Source data

Extended Data Fig. 4 Interaction between Ptrig and representative receptors from cluster V to X.

The curves were fitted by the data determined by BLI. a, WP_067441803.1 in cluster V. b, WP_205368416.1 in cluster VI. c, WP_185944307.1 in cluster VII. d, WP_012999107.1 in cluster VIII. e, WP_242709678.1 in cluster IX. f, WP_226048631.1 in cluster X.

Source data

Extended Data Fig. 5 Characterization and optimization of repression systems.

a, Determination of leakage in four inducible systems by evaluating the fluorescence without inducers. b, Evaluation of the toggle effect of bistable genetic circuit. Medium with cumate or cellulose was refreshed every 18 h. c, Temporal variation of fluorescence without inducers in the strain harboring unoptimized bistable circuit. d, Schematic illustration of the tetramer design of the repressors. e, Schematic of genetic circuits used for evaluating the regulatory behavior of the optimized repressors. The output promoter activity was indicated by fluorescence of sfgfp reporter, while the expression of the optimized repressor was driven by the PTAC promoter which is induced by IPTG. The input promoter activity was measured by the same sfgfp gene, and the IPTG inducer was employed to induce the input promoter via deactivating to the LacI repressor. f, and g, Dose−response curves of the native dimer and artificial tetramer CymR*/CebR*. h, Evaluation of four variants of PcebR. i, Evaluation of the toggle effect of redesigned bistable gene circuit. Medium with cumate or cellulose was changed every 18 h. For a, b, c, f, g, h and i, values are shown as mean ± s.d. from three (n = 3) independent biological replicates.

Source data

Extended Data Fig. 6 Performance of stabilizer and amplifier module on transcriptional level.

a, Quantification of gene expression outputs from strains with or without packaged stabilizer module. The expression levels were measured by RT-qPCR. Relative expression values at 12 hours were normalized to a value of one. b, Characterization the amplification effect by comparing the relative transcriptional levels in the strains with and without amplifier module. c, Comparison of the GFP fluorescence intensity between S. venezuelae wild type (left) and engineering strain harboring sfgfp driven by PON mutants (right) using flow cytometry. d, Fluorescence activated cell sorting to obtain S. venezuelae with varying strength of PON mutants. Gating strategy was based on GFP fluorescence intensity. e, Correlation between transcriptional and translational profiles of 10 selected mutant promoters derived from PON. The transcriptional profile was evaluated by quantitative analysis of sfgfp driven by these promoters, while translational efficiency was evaluated based on the fluorescence intensity of sfGFP. For a and b, values are shown as mean ± s.d. from three (n = 3) independent biological replicates.

Source data

Extended Data Fig. 7 Comparison of native quorum sensing system and artificial control system SMARTS.

A quorum sensing signal transduction pathway in Streptomyces griseus was selected as a representative to elucidate the native regulatory mechanism. This signal transduction pathway can be divided into three stages: recognition, transduction and output. The native quorum sensing system was adapted for dynamic physiological regulation in Streptomyces species. In contrast, by integrating trigger, stabilizer and multiplexer module, the artificial control system SMARTS can response to diverse quorum sensing, and consequently convert the transient quorum sensing signals into stable, multiplexed outputs with adjustable strength in different Streptomyces strains. Furthermore, after responding to the quorum sensing signal, SMARTS is independently regulated and demonstrates complete orthogonality with the endogenous regulatory system.

Extended Data Fig. 8 Baiweimectin activity against soil parasitic nematodes.

a, Survival curve of nematodes treated with baiweimectin compared to commercially available fosthiazate. b, LC50 and LC90 values derived from the survival curve. For a, values are shown as mean ± s.d. from four (n = 4) independent biological replicates.

Source data

Extended Data Fig. 9 Central composite design of baiweimectin optimization targets.

a, aveR. b, avtAB. c, meiC. d, fadD. e, ecaAbicA. f, gRNA targeting sucCD. Values are shown as mean ± s.d. from four (n = 3) independent biological replicates. The statistical analysis is based on two-tailed unpaired Student’s t-test.

Source data

Extended Data Fig. 10 Optimization the production of epidoxorubicin.

a, Group I targets for enhancing epidoxorubicin production. Sources and the corresponding reactions of the targets were annotated. DOX, doxorubicin; Epi, epidoxorubicin; ε-RHO, ε-rhodomycinone; RHOD, rhodomycin D. b, Group II targets for enhancing epidoxorubicin production with annotated sources and corresponding enzymatic reactions. Ac-CoA, acetyl-CoA; M-CoA, malonyl-CoA bldD. c-i, Central composite design of epidoxorubicin optimization targets. c, dnrIN. d, avtE. e, dnrSQ. f, gRNA targeting dnrH. g, panK. h, acc. i, bldD. For c-i, values are shown as mean ± s.d. from four (n = 3) independent biological replicates. The statistical analysis is based on two-tailed unpaired Student’s t-test.

Source data

Supplementary information

Source data

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yang, B., Li, Z., Zhang, J. et al. Scalable secondary metabolite production in Streptomyces using a plug-and-play system. Nat Biotechnol (2025). https://doi.org/10.1038/s41587-025-02762-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1038/s41587-025-02762-1