ANCHOR

ANCHOR predicts protein binding regions within intrinsically disordered proteins (IDPs) by estimating residue-level energetic propensity to remain disordered or to adopt ordered conformations upon binding, supporting identification of disordered binding sites and redox-sensitive regions.

Key Features:

• Integration with IUPred2A and IUPred2: Operates alongside IUPred2 and ANCHOR2 functionalities to combine disorder prediction with disordered binding region detection.
• Energy estimation: Uses energy estimation methods on amino acid sequences to predict ordered and disordered residues by evaluating the energetic favorability of local structure formation.
• Disordered binding region prediction (ANCHOR2): Implements ANCHOR2 with a revised architecture and parameters optimized on novel datasets to identify IDP regions that bind globular protein partners.
• Redox-sensitive region identification: Highlights regions whose predicted binding or disorder propensity is modulated by redox conditions.
• RESTful programmatic access: Provides a RESTful interface for automated query and retrieval of prediction results.
• Output formats: Produces text and graphical outputs representing per-residue disorder and binding propensity scores.

Scientific Applications:

• Protein–protein interaction studies: Identification of candidate binding regions in IDPs to inform mapping of interactions with globular partners.
• Disease mechanism exploration: Characterization of disordered regions implicated in disease-associated dysregulation of IDPs.
• Drug discovery and development: Prioritization of disordered binding sites as targets for therapeutic intervention or modulation.

Methodology:

Computational analysis of protein amino acid sequences using energy estimation to model the energetic landscape of ordered versus disordered states and predict regions likely to form structure upon binding; ANCHOR2 employs a revised architecture and parameters optimized on novel datasets and predictions incorporate redox influence on propensity.