Tetratricopeptide repeat domain protein (TPR domain (generic))

The tetratricopeptide repeat (TPR) domain is a degenerate, 34-amino-acid alpha-helical motif that occurs in tandem arrays in many proteins across prokaryotic and eukaryotic genomes. It provides a modular scaffold for protein-protein interactions, facilitating the assembly of multiprotein complexes. TPR domains are highly variable but generally fold into a right-handed superhelix, forming amphipathic channels that bind target proteins. While TPR motifs are critical for functions such as chaperone activity (e.g., in Hsp70/Hsp90 cochaperones) and cellular structure regulation (e.g., mitochondrial fission), the domain itself is not a target for drug development unless present in specific, functionally important proteins. "Tetratricopeptide repeat domain 24" appears to be either a misnomer or an incomplete name. TPR domains are protein motifs, not drug targets, except where the full-length protein containing them has unique disease relevance. For structured data mapping, this entry is not a canonical drug target and should be flagged for correction or specification.

Other names

Tetratricopeptide repeat proteinTPR domain proteinTPR-containing protein

Not applicable to the motif itself; when present in drug targets, can mediate protein complex formation, often indirectly affecting cell signaling or stress response