Release factor

Peptide chain release factor, bacterial Class 1
Identifiers
SymbolPCRF
PfamPF03462
InterProIPR005139
Available protein structures:
PDB  IPR005139 PF03462 (ECOD; PDBsum)  
AlphaFold
Peptide chain release factor, bacterial Class 1, PTH domain, GGQ
Identifiers
SymbolRF-1
PfamPF00472
Pfam clanCL0337
InterProIPR000352
PROSITEPS00745
Available protein structures:
PDB  IPR000352 PF00472 (ECOD; PDBsum)  
AlphaFold
Peptide chain release factor eRF1/aRF1
Identifiers
Symbol?
InterProIPR004403
Available protein structures:
PDB  IPR004403  
AlphaFold

A release factor is a protein that allows for the termination of translation by recognizing the termination codon or stop codon in an mRNA sequence. They are named so because they release new peptides from the ribosome.