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Protein expression services for arfA | Alternative ribosome-rescue factor A

Description
Rescues ribosomes stalled at the 3' end of non-stop mRNAs (PubMed:21062370, PubMed:21435036). This activity is crucial when the stalled ribosome cannot be rescued by the SsrA(tmRNA)-SmpB quality control system (PubMed:21062370, PubMed:21435036). Binds the 30S subunit, contacting 16S rRNA with the N-terminus near the decoding center and its C-terminus in the mRNA entry channel; contacts change in the presence of release factor 2 (RF2, also named PrfB) (PubMed:25355516, PubMed:27906160, PubMed:27906161, PubMed:27934701, PubMed:28077875). Requires RF2/PrfB to hydrolyze stalled peptidyl-tRNA on the ribosome; recruits and probably helps position RF2/PrfB correctly in the ribosomal A site so RF2's GGQ motif can hydrolyze the peptidyl-tRNA bond (PubMed:22857598, PubMed:22922063, PubMed:25355516, PubMed:27906160, PubMed:27906161, PubMed:27934701, PubMed:28077875). Does not release ribosomes with a programmed pause caused by regulatory chains such as SecM-mediated pausing (PubMed:22857598). Binds tRNA which may stimulate its ribosome rescue activity (PubMed:22857598).
Family
Belongs to the alternative ribosome-rescue factor A family.
Species
Escherichia coli (strain K12)
Length
72 amino acids
Sequence
MSRYQHTKGQIKDNAIEALLHDPLFRQRVEKNKKGKGSYMRKGKHGNRGNWEASGKKVNHFFTTGLLLSGAC
Mass
8.2 kDa
Simulated SDS-PAGE
Western blot of arfA recombinant protein(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)
Safety
Upon ordering, we will perform rigorous biosecurity and export control screening to ensure that order fulfillment is consistent with all legal and regulatory guidance.
Protein synthesis service
Make arfA using our protein expression services starting at $99 + $.30/amino acid in as fast as two weeks (includes the cost of DNA synthesis)

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