ArticleNucleic acids research2004
Combinatorial codon-based amino acid substitutions.
Article in Nucleic acids research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 32 citations in OpenAlex.
- Synthesis of fully protected trinucleotide building blocks on a disulphide-linked soluble support.RSC advances · 2021Article
- Article
- Preparation of trinucleotide phosphoramidites as synthons for the synthesis of gene libraries.Beilstein journal of organic chemistry · 2018Review
- Article
- Review
- Synthetic approach to stop-codon scanning mutagenesis.Journal of the American Chemical Society · 2011Article
- TrimerDimer: an oligonucleotide-based saturation mutagenesis approach that removes redundant and stop codons.Nucleic acids research · 2009Article
- Improvement of an unusual twin-arginine transporter leader peptide by a codon-based randomization approach.Applied and environmental microbiology · 2006Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Twenty Fmoc-protected trinucleotide phosphoramidites representing a complete set of codons for the natural amino acids were chemically synthesized for the first time. A pool of these reagents was incorporated into oligonucleotides at substoichiometric levels to generate two libraries of variants that randomly carry either few or many codon replacements on a region encoding nine amino acids of the bacterial enzyme TEM-1 beta-lactamase. Assembly of the libraries was performed in a completely automated mode through a simple modification of ordinary protocols. This technology eliminates codon redundancy, stop codons and enables complete exploration of sequence space for single, double and triple mutations throughout a protein region spanning several residues. Sequence analysis of many non-selected clones revealed a good incorporation of the trinucleotides, producing combinations of mutations quite different from those obtained using conventional degenerate oligonucleotides. Ceftazidime-selection experiments yielded several never before reported variants containing novel amino acid combinations in the beta-lactamase omega loop region.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.