Cryo-EM structure of EF-G and RaiA simultaneously bound to an E. coli ribosome imaged in a cell lysate
Capturing ribosomal structures in cellular extracts with cryoPRISM: A purification-free cryoEM approach reveals novel structural states.
33 U/mL DNase I (New England Biolabs #M0303L) was added in addition.
Tris(hydroxymethyl)aminomethane hydrochloride pH 7.5
Frozen cell pellets were lysed under cryogenic conditions using a cryomill. Frozen lysate was resuspended and clarified via centrifugation at 21,000g. DNase I (33 U/mL) was added and crude cell extract was plunge-frozen.
Grid was coated with monolayer graphene following (Grassetti et al, JOVE 2023) and treated with UV/ozone for 10 minutes using a Bioforce PC440 UV/ozone cleaner
Protein Y,pY,Ribosome associated factor Y,Spot Y
MARTTPIARYRNIGISAHIDAGKTTTTERILFYTGVNHKIGEVHDGAATMDWMEQEQERGITITSAATTAFWSGMAKQYE PHRINIIDTPGHVDFTIEVERSMRVLDGAVMVYCAVGGVQPQSETVWRQANKYKVPRIAFVNKMDRMGANFLKVVNQIKT RLGANPVPLQLAIGAEEHFTGVVDLVKMKAINWNDADQGVTFEYEDIPADMVELANEWHQNLIESAAEASEELMEKYLGG EELTEAEIKGALRQRVLNNEIILVTCGSAFKNKGVQAMLDAVIDYLPSPVDVPAINGILDDGKDTPAERHASDDEPFSAL AFKIATDPFVGNLTFFRVYSGVVNSGDTVLNSVKAARERFGRIVQMHANKREEIKEVRAGDIAAAIGLKDVTTGDTLCDP DAPIILERMEFPEPVISIAVEPKTKADQEKMGLALGRLAKEDPSFRVWTDEESNQTIIAGMGELHLDIIVDRMKREFNVE ANVGKPQVAYRETIRQKVTDVEGKHAKQSGGRGQYGHVVIDMYPLEPGSNPKGYEFINDIKGGVIPGEYIPAVDKGIQEQ LKAGPLAGYPVVDMGIRLHFGSYHDVDSSELAFKLAASIAFKEGFKKAKPVLLEPIMKVEVETPEENTGDVIGDLSRRRG MLKGQESEVTGVKIHAEVPLSEMFGYATQLRSLTKGRASYTMEFLKYDEAPSNVAQAVIEARGK
MTMNITSKQMEITPAIRQHVADRLAKLEKWQTHLINPHIILSKEPQGFVADATINTPNGVLVASGKHEDMYTAINELINK LERQLNKLQHKGEARRAATSVKDANFVEEVEEE
National Science Foundation (NSF, United States)
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
hibernation, elongation factor, bacterial ribosome, RIBOSOMAL PROTEIN