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Cited by 473

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Synthesis of Guanosine Tetra- and Pentaphosphate Requires the Presence of a Codon-Specific, Uncharged Transfer Ribonucleic Acid in the Acceptor Site of Ribosomes

Open access
Haseltine, William A., Block, Ricardo·1973·Proceedings of the National Academy of Sciences

Abstract

The nucleotides ppGpp and pppGpp accumulate when wild-type, but not rel - , strains of Escherichia coli are starved for required amino acids. These compounds are synthesized on ribosomes, in the presence of the product of the rel gene, from GDP and GTP; ATP is used as the phosphate donor. The signal for making these compounds is the presence of an uncharged tRNA in the ribosomal acceptor site. These compounds are not accumulated if the ribosomes are actively engaged in protein synthesis.

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Metadata

Authors
Haseltine, W. A., & Block, R.
Venue
Proceedings of the National Academy of Sciences
Published
1973-05
Volume
70
Issue
5
Pages
1564-1568
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2006257982
Cited by
473
References
0
FWCI
10.37
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Synthesis of Guanosine Tetra- and Pentaphosphate Requires the Presence of a Codon-Specific, Uncharged Transfer Ribonucleic Acid in the Acceptor Site of Ribosomes. https://app.cochat.ai/papers/10.1073/pnas.70.5.1564
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Haseltine, W. A., & Block, R. (1973). Synthesis of Guanosine Tetra- and Pentaphosphate Requires the Presence of a Codon-Specific, Uncharged Transfer Ribonucleic Acid in the Acceptor Site of Ribosomes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.70.5.1564

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.