AbDesign

AbDesign introduces a novel computational approach to address the challenge of designing structured loop regions within proteins, particularly at functional sites where diversity and lack of secondary structure prevail. AbDesign uses naturally occurring modular fragments to create new protein backbones computationally. This approach takes advantage of the inherent modularity in many protein families. This innovative strategy can create large, atomically accurate, and highly efficient proteins, such as antibodies and enzymes. These proteins exhibit significant divergence from any naturally occurring proteins, incorporating dozens of mutations.

One of the key achievements of AbDesign is its ability to access an extensive combinatorial backbone-conformation space, potentially surpassing the diversity found in the entire Protein Data Bank (PDB). This capability ensures sub-Ångstrom level precision in positioning active-site groups, which is crucial for engineering highly active proteins. AbDesign's methodology represents a significant advancement in protein engineering, offering unparalleled control over the design of functional protein sites, particularly those involving complex loop regions without secondary structure.