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Chemical Compound Review

m(7)Gpppg     [[[(2R,3S,4R,5R)-5-(2-amino- 7-methyl-6-oxo...

Synonyms: KST-1A7041, AR-1A8153, AC1L3TQ4, 7-Methyl-gpppg, 7mGpppG, ...
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Disease relevance of GTG

  • However, unlike Escherichia coli RNA polymerase transcripts from viral cDNA made in the presence of 7mGpppG, transcripts produced by viral RNA polymerase in the presence of 7mGpppG fail to bind to antibody against 7mG [1].

High impact information on GTG

  • We have studied how the m7G(5')ppp(5')G cap structure affects the activity of PARN [2].
  • Internal initiation is much less sensitive to the effects of the cap analogue 7mGpppG in both the reticulocyte lysate and the wheat-germ extract under conditions that reduce 5'-proximal initiation to only about 4-5% of the control level [3].
  • Replacement of the 35S promoter by the SP6 promoter slightly increased the stability of the plasmid and its RNA transcripts were infectious when capped with m7G(5')ppp(5')G [4].
  • The coinjected m7G(5')ppp(5')G cap analog did not inhibit the trans-splicing reaction in vivo and did not prevent nuclear export of the mRNA [5].
  • The kinetics of binding 7-methyl-GpppG, an analogue of the 5'-mRNA cap, to the cap-binding protein eIF4E, at 20 degrees C, in 50 mM Hepes-KOH buffer, pH 7.2, and 50, 150 and 350 mM KCl, was measured using a stopped-flow spectrofluorometer, and was simulated by means of a Brownian dynamics method [6].

Biological context of GTG


  1. Yeast killer virus transcription initiation in vitro. Barbone, F.P., Williams, T.L., Leibowitz, M.J. Virology (1992) [Pubmed]
  2. The mRNA cap structure stimulates rate of poly(A) removal and amplifies processivity of degradation. Martînez, J., Ren, Y.G., Nilsson, P., Ehrenberg, M., Virtanen, A. J. Biol. Chem. (2001) [Pubmed]
  3. Characterization of the internal initiation of translation on the vesicular stomatitis virus phosphoprotein mRNA. Herman, R.C. Biochemistry (1987) [Pubmed]
  4. Infectious in vivo and in vitro transcripts from a full-length cDNA clone of PVY-N605, a Swiss necrotic isolate of potato virus Y. Jakab, G., Droz, E., Brigneti, G., Baulcombe, D., Malnoë, P. J. Gen. Virol. (1997) [Pubmed]
  5. SV40 T1-mRNA trans-splicing and translation requires that the in vitro synthesized cRNA is capped before microinjection. Graessmann, M., Eul, J., Berg, B., Zimmermann, C., Graessmann, A. FEBS Lett. (1996) [Pubmed]
  6. Stopped-flow and Brownian dynamics studies of electrostatic effects in the kinetics of binding of 7-methyl-GpppG to the protein eIF4E. Błachut-Okrasińska, E., Bojarska, E., Niedźwiecka, A., Chlebicka, L., Darzynkiewicz, E., Stolarski, R., St piński, J., Antosiewicz, J.M. Eur. Biophys. J. (2000) [Pubmed]
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