Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.

Methylotrophic yeast Pichia pastoris (Komagaetella phaffii) has emerged as a versatile and robust host for recombinant protein production, owing to its capacity for high-level protein expression, scalability, and post-translational protein modifications. The development of efficient genetic tools, e...

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Main Authors: Parastoo Karimian, Ema Johnston, Annette Kasprzak, Jian-Wei Liu, Sally Stockwell, Thomas Vanhercke, CarolJ. Hartley
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Future Foods
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666833525001029
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author Parastoo Karimian
Ema Johnston
Annette Kasprzak
Jian-Wei Liu
Sally Stockwell
Thomas Vanhercke
CarolJ. Hartley
author_facet Parastoo Karimian
Ema Johnston
Annette Kasprzak
Jian-Wei Liu
Sally Stockwell
Thomas Vanhercke
CarolJ. Hartley
author_sort Parastoo Karimian
collection DOAJ
description Methylotrophic yeast Pichia pastoris (Komagaetella phaffii) has emerged as a versatile and robust host for recombinant protein production, owing to its capacity for high-level protein expression, scalability, and post-translational protein modifications. The development of efficient genetic tools, expression vectors and high throughput screening techniques is critical for leveraging the full potential of P. pastoris in both research and industrial applications. We have developed a dual biosensor enabling both high throughput screening of base precision fermentation production strains and assessment of genetic components for recombinant protein expression and secretion in P. pastoris using a dual bioluminescence-esterase system. The biosensor system is based on the combination of a split bioluminescence system (HiBit, Promega) with a versatile and thermostable esterase enzyme (E2Aa). Our results demonstrate the multiple uses of this system. The dual biosensor enabled identification and assessment of optimal genetic components such as novel secretion signal peptides derived from a fungal pathogen. In addition, we demonstrate the usefulness of the biosensor for screening and identifying suitable base production strains for recombinant production of target enzymes and proteins, including difficult-to-quantify, intrinsically-disordered animal proteins, such as caseins. In future, we aim to expand the utility of this system to assess the effect of additional genetic edits to Pichia pastoris base production strains and to demonstrate applicability towards screening and optimizing precision fermentation strains for other yeast and fungal species.
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spelling doaj-art-e5edd44c5ef948a18e5a36fdfc2965bf2025-08-20T01:48:26ZengElsevierFuture Foods2666-83352025-06-011110064010.1016/j.fufo.2025.100640Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.Parastoo Karimian0Ema Johnston1Annette Kasprzak2Jian-Wei Liu3Sally Stockwell4Thomas Vanhercke5CarolJ. Hartley6CSIRO Agriculture & Food, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, AustraliaCSIRO Agriculture & Food, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, AustraliaCSIRO Agriculture & Food, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, AustraliaCSIRO Environment, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, AustraliaCSIRO Agriculture & Food, Queensland Bioscience Precinct, St Lucia, Brisbane, 4072, AustraliaCSIRO Agriculture & Food, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, AustraliaCSIRO Agriculture & Food, Black Mountain Science and Innovation Precinct, Clunies Ross Street, Canberra, ACT, 2601, Australia; Corresponding author.Methylotrophic yeast Pichia pastoris (Komagaetella phaffii) has emerged as a versatile and robust host for recombinant protein production, owing to its capacity for high-level protein expression, scalability, and post-translational protein modifications. The development of efficient genetic tools, expression vectors and high throughput screening techniques is critical for leveraging the full potential of P. pastoris in both research and industrial applications. We have developed a dual biosensor enabling both high throughput screening of base precision fermentation production strains and assessment of genetic components for recombinant protein expression and secretion in P. pastoris using a dual bioluminescence-esterase system. The biosensor system is based on the combination of a split bioluminescence system (HiBit, Promega) with a versatile and thermostable esterase enzyme (E2Aa). Our results demonstrate the multiple uses of this system. The dual biosensor enabled identification and assessment of optimal genetic components such as novel secretion signal peptides derived from a fungal pathogen. In addition, we demonstrate the usefulness of the biosensor for screening and identifying suitable base production strains for recombinant production of target enzymes and proteins, including difficult-to-quantify, intrinsically-disordered animal proteins, such as caseins. In future, we aim to expand the utility of this system to assess the effect of additional genetic edits to Pichia pastoris base production strains and to demonstrate applicability towards screening and optimizing precision fermentation strains for other yeast and fungal species.http://www.sciencedirect.com/science/article/pii/S2666833525001029Precision fermentationAlternative food proteinsStrain engineeringScreeningDual biosensorYeast
spellingShingle Parastoo Karimian
Ema Johnston
Annette Kasprzak
Jian-Wei Liu
Sally Stockwell
Thomas Vanhercke
CarolJ. Hartley
Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
Future Foods
Precision fermentation
Alternative food proteins
Strain engineering
Screening
Dual biosensor
Yeast
title Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
title_full Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
title_fullStr Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
title_full_unstemmed Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
title_short Use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains.
title_sort use of a dual biosensor for identification of novel secretion signal peptides and efficient screening of precision fermentation production strains
topic Precision fermentation
Alternative food proteins
Strain engineering
Screening
Dual biosensor
Yeast
url http://www.sciencedirect.com/science/article/pii/S2666833525001029
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