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Deploying synthetic coevolution and machine learning to engineer protein-protein interactions

Journal Article · · Science
 [1];  [1];  [2];  [3];  [1];  [1];  [1];  [1];  [3];  [4];  [1]
  1. Stanford Univ., CA (United States). School of Medicine
  2. Toyota Technological Institute at Chicago, IL (United States)
  3. Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland)
  4. Toyota Technological Institute at Chicago, IL (United States); Univ. of Chicago, IL (United States)
Fine-tuning of protein-protein interactions occurs naturally through coevolution, but this process is difficult to recapitulate in the laboratory. We describe a platform for synthetic protein-protein coevolution that can isolate matched pairs of interacting muteins from complex libraries. This large dataset of coevolved complexes drove a systems-level analysis of molecular recognition between Z domain–affibody pairs spanning a wide range of structures, affinities, cross-reactivities, and orthogonalities, and captured a broad spectrum of coevolutionary networks. Furthermore, we harnessed pretrained protein language models to expand, in silico, the amino acid diversity of our coevolution screen, predicting remodeled interfaces beyond the reach of the experimental library. Further, the integration of these approaches provides a means of simulating protein coevolution and generating protein complexes with diverse molecular recognition properties for biotechnology and synthetic biology.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Sponsoring Organization:
National Institute of General Medical Sciences (NIGMS); National Institutes of Health (NIH); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515
OSTI ID:
2471685
Journal Information:
Science, Journal Name: Science Journal Issue: 6656 Vol. 381; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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