2022
Fossil biomolecules reveal an avian metabolism in the ancestral dinosaur
Wiemann J, Menéndez I, Crawford JM, Fabbri M, Gauthier JA, Hull PM, Norell MA, Briggs DEG. Fossil biomolecules reveal an avian metabolism in the ancestral dinosaur. Nature 2022, 606: 522-526. PMID: 35614213, DOI: 10.1038/s41586-022-04770-6.Peer-Reviewed Original ResearchConceptsHigh metabolic rateCretaceous mass extinctionTerminal Cretaceous mass extinctionLate Cretaceous taxaMetabolic rateCrown mammalsAvian lineagesAncestral stateEcological nichesGiant sauropodsCretaceous taxaMammalsMetabolic abilitiesMetabolic performanceMass extinctionBirdsPhysiological activityEndothermyAvian metabolismCostly adaptationsMetabolismVivo accumulationTheropodsOrnithischiansEctotherms
2020
Phylogenetic and physiological signals in metazoan fossil biomolecules
Wiemann J, Crawford JM, Briggs DEG. Phylogenetic and physiological signals in metazoan fossil biomolecules. Science Advances 2020, 6: eaba6883. PMID: 32832604, PMCID: PMC7439315, DOI: 10.1126/sciadv.aba6883.Peer-Reviewed Original ResearchConceptsEvolutionary historyPhylogenetic informationMetazoan relationshipsMolecular signalsAnimal formsRelative abundanceDifferent tissue typesDeep timeLipoxidation productsTissue typesMetazoan fossilsMolecular compositionMolecular heterogeneityProteinBiological signalsFossil organic matterLipidsPowerful toolSugarsAbundanceLipoxidationGlycoxidationFossilsOrganic matterFossilization
2015
Gut Symbionts from Distinct Hosts Exhibit Genotoxic Activity via Divergent Colibactin Biosynthesis Pathways
Engel P, Vizcaino MI, Crawford JM. Gut Symbionts from Distinct Hosts Exhibit Genotoxic Activity via Divergent Colibactin Biosynthesis Pathways. Applied And Environmental Microbiology 2015, 81: 1502-1512. PMID: 25527542, PMCID: PMC4309719, DOI: 10.1128/aem.03283-14.Peer-Reviewed Original ResearchConceptsNonribosomal peptide synthetaseBiosynthetic pathwayBacterial symbiontsGut symbiontsSecondary metabolitesEukaryotic cellsGenomic islandsBacterial gut symbiontDiverse symbiotic associationsDivergent variantsDNA damagePolyketide synthase pathwayE. coliComparative metabolomic analysisRelated secondary metabolitesPathway-dependent mannerSymbiotic associationGene clusterMicrobial interactionsBiosynthesis pathwayDistinct hostsPeptide synthetaseMammalian gutHoney beesSymbionts