Evidence map›Paper›PMID 33813636›Full record

ArticleAmino acids2021

Scope and limitations of pseudoprolines as individual amino acids in peptide synthesis.

Dmitry A Senko, Nikita D Timofeev, Igor E Kasheverov, Igor A Ivanov

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Article in Amino acids, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Backbone Protecting Groups for Enhanced Peptide and Protein Synthesis.Angewandte Chemie (International ed. in English) · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Dmitry A SenkoShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia. dmitrii.senko@chemistry.msu.ru.ORCID http://orcid.org/0000-0001-8752-9932
Nikita D TimofeevShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia.
Igor E KasheverovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia.
Igor A IvanovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protected 4-carboxyoxazolidines and thiazolidines (pseudoprolines) are derivatives of serine, threonine or cysteine amino acids. Such compounds are used in peptide synthesis among the other protected amino acids. They are usually practiced when a peptide sequence is readily aggregating during synthesis due to their ability to disrupt secondary structure formation. Such compounds are usually applied as dipeptides. In present work Fmoc-protected pseudoprolines were synthesized and applied in peptide synthesis not as dipeptides but as individual amino acids. Different acylation protocols and amino acids were tested to acylate pseudoprolines. Several "difficult" peptides were synthesized to confirm the efficacy of such constructions. It was shown that pseudoprolines could be easily synthesized and used in automated or manual synthesis not as dipeptides but as ordinary amino acids.

Indexed as

AcylationAmino AcidsAmino Acid SequencePeptide BiosynthesisPeptidesProlineProtein Structure, SecondarySolid-Phase Synthesis TechniquesThiazolesAmino AcidsPeptidesProlinepseudoprolineThiazolesAggregationDifficult sequencesPeptidesPseudoprolinesSolid-phase synthesis

Identifiers

PMID33813636

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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.