9p7a

Structural highlights

Function

SERB1_HUMAN Ribosome-binding protein that promotes ribosome hibernation, a process during which ribosomes are stabilized in an inactive state and preserved from proteasomal degradation (PubMed:36691768). Acts via its association with EEF2/eEF2 factor, sequestering EEF2/eEF2 at the A-site of the ribosome and promoting ribosome stabilization and storage in an inactive state (By similarity). May also play a role in the regulation of mRNA stability: binds to the 3'-most 134 nt of the SERPINE1/PAI1 mRNA, a region which confers cyclic nucleotide regulation of message decay (PubMed:11001948). Seems to play a role in PML-nuclear bodies formation (PubMed:28695742).[UniProtKB:Q9CY58]^{[1] [2] [3]}

References

1. ↑ Heaton JH, Dlakic WM, Dlakic M, Gelehrter TD. Identification and cDNA cloning of a novel RNA-binding protein that interacts with the cyclic nucleotide-responsive sequence in the Type-1 plasminogen activator inhibitor mRNA. J Biol Chem. 2001 Feb 2;276(5):3341-7. PMID:11001948 doi:10.1074/jbc.M006538200
2. ↑ Saito Â, Souza EE, Costa FC, Meirelles GV, Gonçalves KA, Santos MT, Bressan GC, McComb ME, Costello CE, Whelan SA, Kobarg J. Human Regulatory Protein Ki-1/57 Is a Target of SUMOylation and Affects PML Nuclear Body Formation. J Proteome Res. 2017 Sep 1;16(9):3147-3157. PMID:28695742 doi:10.1021/acs.jproteome.7b00001
3. ↑ Shetty S, Hofstetter J, Battaglioni S, Ritz D, Hall MN. TORC1 phosphorylates and inhibits the ribosome preservation factor Stm1 to activate dormant ribosomes. EMBO J. 2023 Mar 1;42(5):e112344. PMID:36691768 doi:10.15252/embj.2022112344