forkhead associated (FHA) domain found in Saccharomyces cerevisiae vacuolar protein sorting-associated protein 64 (VPS64) and similar proteins
This subfamily includes VPS64 (also called factor arrest protein 9 or FAR9) and factor arrest protein 10 (FAR10), which participate in the control of the re-entry into the cell cycle following pheromone treatment. VPS64 is also involved in vacuolar protein sorting. The FHA domain is a small phosphopeptide recognition module.
Feature 1:putative phosphopeptide binding site [polypeptide binding site]
Evidence:
Comment:based on structures of other FHA domains with bound phosphopeptide
Comment:GR at the C terminus of strand beta3, SRxH just preceding beta5, and motif SxNG in the beta6-beta7 turn indicate a canonical mode of pThr recognition.
Comment:Conserved residues are involved in binding directly to the ligand backbone and phosphate group. Non-conserved residues may determine binding specificity.
Jiyao W et al.(2023). "The conserved domain database in 2023.",