Evolutionary Context Clarifies Protein Fold Classification
On December 1, 2025, Pei et al. applied DPAM to AlphaFold-predicted proteins to reassess TED project's >7,400 candidate novel-fold (CNF) domains, identifying 8,044 DPAM domains overlapping CNFs and confidently assigning 2,490 to ECOD entries. They report many TED CNFs are distant homologs or insertions in known enzymatic or repeat folds, with over one-third embedded within DPAM domains and 17% showing consistent boundaries.
Key Points
- 1Identified 8,044 DPAM domains overlapping TED CNFs, 2,490 mapped to ECOD.
- 2Showed many TED CNFs are distant homologs or insertions into enzymatic or repeat folds.
- 3Recommend integrating sequence and structure methods to refine domain boundaries and improve functional annotation.
Scoring Rationale
Applies integrative DPAM analysis to reclassify many candidate novel folds; limited scope to domain classification rather than new folding principles.
Sources
Public references used for this report.
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