Protein
FK506-binding protein 4
Organism
Rhizopus delemar (strain RA 99-880 / ATCC MYA-4621 / FGSC 9543 / NRRL 43880)
Function
PPIase that acts as a histone chaperone. Histone proline isomerase that increases the rate of cis-trans isomerization at prolines on the histone H3 N-terminal tail. Proline isomerization influences H3 methylation thereby regulating gene expression.
Similarity
Belongs to the FKBP-type PPIase family. FKBP3/4 subfamily.
Sequence
MSVQGFWGLQLVPGKTYSQVVSAPFRITMASLAADAEAGKRTSVSVLVDEKEFVLCTLVPNKIEQQPLDITFVEGEEVTFSAKGQNNIHLTGNYVFQDDEDDEMGASMIDSDEEDNVEDFLKKLPPNASKEDINKALLGLEVDEEIESDEEVESDEEIESDEEIESEEEEEEPVPVSKKRPAEEVKEIASKKQKAEKKEQPKKEKSKKEEPKKEEPKKEQPKKEEPKKKEEPKKKEEPKKKEEPKKKEEPKKKEEPKKKEEPKKKEEPKKKITKLPNGLIIEDIKMGEGASCKNGQRVGMRYIGKLTNGKVFDKNVSGKPFSFLLGRGEVIKGWDLGIAGMKAGGERKLTIPAPLAYGKRGAPPDIPKNATLVFDVKLLSMK