Journal
PROTEIN SCIENCE
Volume 30, Issue 1, Pages 151-159Publisher
WILEY
DOI: 10.1002/pro.3970
Keywords
AbDesign; computational protein design; Rosetta; structural diversity
Categories
Funding
- European Research Council [815379]
- Israel Science Foundation [1844]
- Volkswagen Foundation [94747]
- European Research Council (ERC) [815379] Funding Source: European Research Council (ERC)
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The AbDesign approach allows for the computational assembly of a large number of new protein backbones by combining naturally occurring modular fragments, resulting in highly efficient proteins with dozens of mutations. This method provides sub-angstrom level control over the positioning of active-site groups, which is necessary for obtaining highly active proteins.
The functional sites of many protein families are dominated by diverse backbone regions that lack secondary structure (loops) but fold stably into their functionally competent state. Nevertheless, the design of structured loop regions from scratch, especially in functional sites, has met with great difficulty. We therefore developed an approach, called AbDesign, to exploit the natural modularity of many protein families and computationally assemble a large number of new backbones by combining naturally occurring modular fragments. This strategy yielded large, atomically accurate, and highly efficient proteins, including antibodies and enzymes exhibiting dozens of mutations from any natural protein. The combinatorial backbone-conformation space that can be accessed by AbDesign even for a modestly sized family of homologs may exceed the diversity in the entire PDB, providing the sub-angstrom ngstrom level of control over the positioning of active-site groups that is necessary for obtaining highly active proteins. This manuscript describes how to implement the pipeline using code that is freely available at .
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