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Study · Measured the body's own peptide · 1983

4 results

Distribution of thymosin beta 4 in vertebrate classes.

Erickson-Viitanen S, Ruggieri S, Natalini P, Horecker BL

Archives of biochemistry and biophysics1 Mar 1983Cited by 70 (Europe PMC)

PMID6838210 (opens in a new tab)DOI10.1016/0003-9861(83)90177-7 (opens in a new tab)PepBankPUB-06838210
Publisher pagePubMedAsk about this study
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study4

No result from this study comes from a test of the peptide.

Natural levels measured4

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01AnimalEndogenous levelAnimal study (in vivo)Other

    Thymosin beta‑4 was identified in tissues of other mammalian species and of other vertebrate classes, including birds and amphibia.

    In plain wordsThe body's own thymosin beta‑4 was found in tissues of many mammals, birds and amphibians.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicablePresence of thymosin beta 4 in other mammals, birds and amphibia
    Study

    mammals, birds and amphibian: not reported in source

    tissues of vertebrates
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    We have now identified the same peptide in tissues of other mammalian species and other vertebrate classes, including birds and amphibia.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    In rabbit and bony fish, thymosin beta‑4 is replaced by different peptides of similar size and amino acid sequence.

    In plain wordsIn rabbits and bony fish, similar but different peptides take the place of the body's own thymosin beta‑4.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicableThymosin beta 4 in rabbit and bony fish
    Study

    rabbit and bony fishn: not reported in source

    tissues
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    Exceptions are the rabbit and bony fish, where thymosin beta 4 is replaced by different peptides, similar in size and in amino acid sequence.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

  3. 03AnimalEndogenous levelAnimal study (in vivo)Other

    None of these peptides, thymosin beta‑4 included, was detected in several invertebrates or in the protozoan Tetrahymena pyriformis.

    In plain wordsThe body's own thymosin beta‑4 was not detected in the invertebrates and the protozoan that were tested.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    No significant changeThymosin beta 4 in invertebrates and Tetrahymena
    Study

    invertebrates and Tetrahymena pyriformisn: not reported in source

    invertebrate tissues and protozoan
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    None of these peptides was detected in several invertebrates or in the protozoan, Tetrahymena pyriformis.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

  4. 04AnimalEndogenous levelAnimal study (in vivo)Other

    In subcellular fractionation of rat spleen, thymosin beta‑4 was recovered in the cytosol.

    In plain wordsIn rat spleen, the body's own thymosin beta‑4 was found in the cytosol.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicableSubcellular location of thymosin beta 4 in rat spleen
    Study

    ratn: not reported in source

    rat spleen subcellular fractions
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    In subcellular fractionation of rat spleen, thymosin beta 4 was recovered in the cytosol.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    13 Oct 2026, 01:52 UTC

    Study results updated

  2. Version 1

    12 Oct 2026, 18:17 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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