Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Structural characterization of thermal prebiotic polypeptides.

P A Temussi, L Paolillo, L Ferrara

    Journal of Molecular Evolution
    |March 29, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Geographic Disparities in Liver Allocation and Distribution in the United States: Where Are We Now?

    Transplantation proceedings·2019
    Same author

    Portojejunostomy in Split Liver Transplantation as a Rescue Technique for Challenging Biliary Reconstruction: A Case Report.

    Transplantation proceedings·2019
    Same author

    YAP/TAZ mechano-transduction as the underlying mechanism of neuronal differentiation induced by reduced graphene oxide.

    Nanomedicine (London, England)·2018
    Same author

    Small bowel transplantation in identical twins - a video vignette.

    Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland·2018
    Same author

    Eculizumab for Prevention of Antibody-Mediated Rejection in Blood Group-Incompatible Renal Transplantation.

    Transplantation proceedings·2018
    Same author

    Emergency Kidney Transplantation in Recipients With Iliocaval Thrombosis Using Splenic Vessel Anastomosis After Splenectomy: A Case Series.

    Transplantation proceedings·2018
    Same journal

    Deep Dive into Evolution: How Cetaceans Adapt Their Anticoagulant Genes for Underwater Survival.

    Journal of molecular evolution·2026
    Same journal

    Sensing Underwater: Diversifying Selection, Convergent Evolution and Inactivation in Sensory Receptors' Genes of Aquatic Mammals.

    Journal of molecular evolution·2026
    Same journal

    Synonymous Codons as Potential Contributors to Chromatin Stability and Gene Body Methylation in Plants.

    Journal of molecular evolution·2026
    Same journal

    Convergent Functional Genomic Evolution Underlying Repeated Freshwater Colonization in Cetaceans.

    Journal of molecular evolution·2026
    Same journal

    Conditions Enabling the Persistence of Cooperating Synthetase, Ligase, and Mutation-Inhibitor Catalytic Polymers.

    Journal of molecular evolution·2026
    Same journal

    Lineage-Specific Diversification of Nucleoporin Nup98 Genes in Ciliates and Its Evolutionary Implications for the Nuclear Dualism.

    Journal of molecular evolution·2026
    See all related articles

    Thermal polycondensation of amino acids may not be a viable prebiotic pathway for life's chemical evolution. Resulting polymers lack natural peptide bonds, suggesting a different origin for early life molecules.

    Area of Science:

    • Astrobiology
    • Biochemistry
    • Organic Chemistry

    Background:

    • The origin of life remains a fundamental scientific question.
    • Prebiotic chemistry explores the formation of organic molecules necessary for life under early Earth conditions.
    • Amino acid polymerization is a key step considered in abiogenesis.

    Purpose of the Study:

    • To critically examine thermal polycondensation of amino acids as a potential prebiotic pathway.
    • To analyze the structural characteristics of polymers formed via thermal polycondensation.
    • To compare these synthetic polymers with naturally occurring peptides.

    Main Methods:

    • Nuclear Magnetic Resonance (NMR) spectroscopy was employed to analyze the structure of the synthesized polymers.
    • Thermal polycondensation reactions of amino acids were performed under simulated prebiotic conditions.

    Related Experiment Videos

    Main Results:

    • Polymers formed through thermal polycondensation exhibit a predominance of beta, gamma, and epsilon peptide bonds.
    • These synthetic polymers show significant structural differences compared to natural peptidic materials, which primarily contain alpha-peptide bonds.
    • The study found scarce resemblance between the thermally polymerized materials and natural peptides.

    Conclusions:

    • Thermal polycondensation of amino acids is unlikely to be the primary prebiotic route for generating peptides essential for life.
    • The structural analysis suggests that alternative polymerization mechanisms likely played a role in the chemical evolution of early life.
    • Further research is needed to explore other plausible prebiotic peptide formation pathways.