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1 xic Tyr-123 mutants, although ribosomes were depurinated.
3 formed predominantly (> or =99%) the rapidly-depurinating 4-hydroxy estradiol (4-OHE(2))-1-N3Ade addu
5 cytoplasm where, by virtue of its ability to depurinate a conserved residue within the sarcin-ricin l
6 proteins (RIPs) are RNA N-glycosidases that depurinate a specific adenine residue in the conserved s
13 we discovered a site-specific self-catalyzed depurinating activity in short (14-18 nucleotides) DNA s
14 3,4-Q were bound to DNA in vitro to form the depurinating adduct 4-OHE1(E2)-1(alpha,beta)-N7Gua at 59
15 catechol estrogens (2-OHE2, 4-OHE2), and the depurinating adducts 4-OHE(2)-1(alpha,beta)-N7-guanine (
16 ]P can be activated to metabolites that form depurinating adducts in cells with either high peroxidas
20 , inhibitor screens, mechanistic analysis of depurinating agents on oligonucleotides and intact ribos
21 TA) is the catalytic subunit of ricin, which depurinates an adenine from the sarcin/ricin loop in euk
22 ngle-chain ribosomal inhibitory protein that depurinates an adenine residue in the alpha-sarcin loop
24 nter cleft residues significantly impair the depurinating and ribosome inhibitory activity of PAP.
25 ), and (90)FND(92) substantially reduced the depurinating and ribosome inhibitory activity of PAP.
28 the loop; the 5'-G residue of the loop self-depurinates at least 10(5)-fold faster than random "spon
30 pernatants were analyzed for the presence of depurinating BP-derived adducts by capillary electrophor
33 P) has been reported to form both stable and depurinating DNA adducts upon activation by cytochrome P
35 elieved to include both stable and unstable (depurinating) DNA adduct formation as well as reactive o
37 i and that Howardula ribosomal RNA (rRNA) is depurinated during Spiroplasma-mediated protection of D.
39 racterised by their ability to catalytically depurinate eukaryotic ribosomes, a modification that mak
42 nogenic aromatic hydrocarbons indicates that depurinating hydrocarbon-DNA adducts generate oncogenic
44 Ribosomes from the P protein mutants were depurinated less than the wild-type ribosomes when treat
50 ovide the first evidence that the ability to depurinate ribosomes and inhibit translation does not al
53 cytotoxicity without altering the ability to depurinate ribosomes in trans and inhibit translation.
54 hese results demonstrate that the ability to depurinate ribosomes in trans in a catalytic manner is r
55 only during their translation and could not depurinate ribosomes in trans in a translation-independe
56 tic activity toward the SRL allows Stx2A1 to depurinate ribosomes, inhibit translation, and exhibit c
66 I) ribosome-inactivating protein (RIP) that depurinates ribosomes at the alpha-sarcin/ricin loop of
67 ive-site mutant of PAP (PAPx) which does not depurinate rRNA, we present evidence that double-strande
69 Appearance of the apurinic site in the self-depurinating stem-loop was confirmed by digestion of pla
71 is required for PAP to bind to ribosomes and depurinate the 25 S rRNA, suggesting that it is located
72 hat PAP binds to the ribosomal protein L3 to depurinate the alpha-sarcin/ricin loop and binding of PA
74 mericana, is characterized by its ability to depurinate the sarcin/ricin (S/R) loop of the large rRNA
76 Stxs bind the ribosomal P-stalk proteins to depurinate the sarcin/ricin loop on the eukaryotic ribos
77 2 interactions work together allowing RTA to depurinate the SRL at a much higher rate on the intact r
79 ; ricin A-chain is an RNA N-glycosidase that depurinates the adenosine at position 4324 and alpha-sar
81 ng protein (RIP) that binds to ribosomes and depurinates the highly conserved alpha-sarcin/ricin loop
82 PAP) is a ribosome-inactivating protein that depurinates the highly conserved alpha-sarcin/ricin loop
87 nder physiologically relevant conditions and depurinate to release an alkylated nucleobase in a proce
88 ce that PAP is associated with ribosomes and depurinates tobacco ribosomes in vivo by removing more t
89 e yeast, ribosomes from mak8-1 cells are not depurinated when PAP expression is induced in vivo, indi
91 purination kinetics demonstrated that Stx2A1 depurinates yeast and mammalian ribosomes and an RNA ste