DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A One‐Pot Biocatalytic Cascade to Access Diverse l ‐Phenylalanine Derivatives from Aldehydes or Carboxylic Acids

Journal Article · · ChemCatChem

Abstract Nonstandard amino acids (nsAAs) that are l ‐phenylalanine derivatives with aryl ring functionalization have long been harnessed in natural product synthesis, therapeutic peptide synthesis, and diverse applications of genetic code expansion. Yet, to date, these chiral molecules have often been the products of poorly enantioselective and environmentally harsh organic synthesis routes. Here, we reveal the broad specificity of multiple natural pyridoxal 5′‐phosphate (PLP)‐dependent enzymes, specifically an l ‐threonine transaldolase, a phenylserine dehydratase, and an aminotransferase, toward substrates that contain aryl side chains with diverse substitutions. We exploit this tolerance to construct a one‐pot biocatalytic cascade that achieves high‐yield synthesis of 18 diverse l ‐phenylalanine derivatives from aldehydes under mild aqueous reaction conditions. We demonstrate the addition of a carboxylic acid reductase module to this cascade to enable the biosynthesis of l ‐phenylalanine derivatives from carboxylic acids that may be less expensive or less reactive than the corresponding aldehydes. Finally, we investigate the scalability of the cascade by developing a lysate‐based route for preparative‐scale synthesis of 4‐formyl‐ l ‐phenylalanine, a nsAA with a bio‐orthogonal handle that is not readily market‐accessible. Overall, this work offers an efficient, versatile, and scalable route with the potential to lower manufacturing costs and democratize synthesis for many valuable nsAAs.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2530243
Journal Information:
ChemCatChem, Journal Name: ChemCatChem Journal Issue: 5 Vol. 17; ISSN 1867-3880
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (46)

Genome engineering allows selective conversions of terephthalaldehyde to multiple valorized products in bacterial cells journal August 2023
Stereoselective Synthesis of β‐Branched Aromatic α‐Amino Acids by Biocatalytic Dynamic Kinetic Resolution** journal July 2021
Simultaneous synthesis of enantiomerically pure (S)-amino acids and (R)-amines using coupled transaminase reactions journal January 2003
Scalable and Selective β‐Hydroxy‐α‐Amino Acid Synthesis Catalyzed by Promiscuous l‐Threonine Transaldolase ObiH journal November 2021
Whole‐Cell Cascade Biotransformations for One‐Pot Multistep Organic Synthesis journal February 2018
Novel biosynthetic routes to non-proteinogenic amino acids as chiral pharmaceutical intermediates journal January 2001
Multi-enzyme cascade for improving β-hydroxy-α-amino acids production by engineering L-threonine transaldolase and combining acetaldehyde elimination system journal August 2020
Adding amino acids to the genetic repertoire journal December 2005
Photocleavage of the Polypeptide Backbone by 2-Nitrophenylalanine journal February 2009
Structural and spectroscopic characterization of RufO indicates a new biological role in rufomycin biosynthesis journal August 2023
Noncanonical Amino Acids in Biocatalysis journal July 2024
Biosynthetic Pathways to Nonproteinogenic α-Amino Acids journal December 2019
Biosynthesis of the Anti-infective Marformycins Featuring Pre-NRPS Assembly Line N-Formylation and O-Methylation and Post-Assembly Line C-Hydroxylation Chemistries journal March 2015
Open Gate of Corynebacterium glutamicum Threonine Deaminase for Efficient Synthesis of Bulky α-Keto Acids journal August 2020
Embracing Nature’s Catalysts: A Viewpoint on the Future of Biocatalysis journal June 2020
Reductive Enzyme Cascades for Valorization of Polyethylene Terephthalate Deconstruction Products journal March 2023
l -Threonine Transaldolase Activity Is Enabled by a Persistent Catalytic Intermediate journal December 2020
Beyond 20 in the 21st Century: Prospects and Challenges of Non-canonical Amino Acids in Peptide Drug Discovery journal April 2023
Escherichia coli aromatic amino acid aminotransferase: Characterization and comparison with aspartate aminotransferase journal November 1993
Engineering Complementary Hydrophobic Interactions to Control β-Hairpin Peptide Self-Assembly, Network Branching, and Hydrogel Properties journal October 2014
Modular Synthesis of Biodegradable Diblock Copolymers for Designing Functional Polymersomes journal February 2010
Transaminase-Catalyzed Synthesis of β-Branched Noncanonical Amino Acids Driven by a Lysine Amine Donor journal May 2024
Enhancing Protein Stability with Genetically Encoded Noncanonical Amino Acids journal November 2018
Nonproteinogenic α-Amino Acid Preparation Using Equilibrium Shifted Transamination journal May 2002
Recoded organisms engineered to depend on synthetic amino acids journal January 2015
Biocontainment of genetically modified organisms by synthetic protein design journal January 2015
Evolution of translation machinery in recoded bacteria enables multi-site incorporation of nonstandard amino acids journal November 2015
Asymmetric assembly of high-value α-functionalized organic acids using a biocatalytic chiral-group-resetting process journal September 2018
Metal-responsive regulation of enzyme catalysis using genetically encoded chemical switches journal April 2022
A designer enzyme for hydrazone and oxime formation featuring an unnatural catalytic aniline residue journal July 2018
A designed photoenzyme for enantioselective [2+2] cycloadditions journal September 2022
Boron catalysis in a designer enzyme journal May 2024
A platform for distributed production of synthetic nitrated proteins in live bacteria journal May 2023
Discovery of l-threonine transaldolases for enhanced biosynthesis of beta-hydroxylated amino acids journal September 2023
A genetically encoded aldehyde for rapid protein labelling journal January 2014
Novel artificial metalloenzymes by in vivo incorporation of metal-binding unnatural amino acids journal January 2015
Designing logical codon reassignment – Expanding the chemistry in biology journal January 2015
Site-specific 2D IR spectroscopy: a general approach for the characterization of protein dynamics with high spatial and temporal resolution journal January 2019
Oxidative coupling of peptides to a virus capsid containing unnatural amino acids journal January 2008
Immunochemical termination of self-tolerance journal August 2008
A general approach to site-specific antibody drug conjugates journal January 2014
Engineering posttranslational proofreading to discriminate nonstandard amino acids journal January 2018
Beyond the Canonical 20 Amino Acids: Expanding the Genetic Lexicon journal April 2010
A Novel Phenylserine Dehydratase from Pseudomonas pickettii PS22: Purification, Characterization, and Sequence of Its Phosphopyridoxyl Peptide journal April 1996
Synthetic auxotrophy remains stable after continuous evolution and in coculture with mammalian cells journal July 2021
Cloning, Sequencing, and Overexpression inEscherichia coliof a Phenylserine Dehydratase Gene fromRalstonia pickettiiPS22 journal January 2002