ArticleMolecular biology and evolution2024
The Evolution of Transglutaminases Underlies the Origin and Loss of Cornified Skin Appendages in Vertebrates.
Article in Molecular biology and evolution, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Evolution of an amphibian-specific family of epidermal differentiation-associated genes.Molecular biology and evolution · 2026Article
- Hoxc13 and homologs of mammalian hair keratins are required for the cornification of nuptial pads in Xenopus frogs.Communications biology · 2026Article
- Human Transglutaminases: Updated Insights into Activation Mechanisms, Allosteric Regulation and Disease.International journal of molecular sciences · 2026Review
- The Epithelial Egg Tooth of the Chicken Shares Protein Markers with the Embryonic Subperiderm and Feathers.Journal of developmental biology · 2025Article
- Comparative Transcriptomics Reveals a Dual Role of the Epidermal Differentiation Complex in the Skin and the Oesophagus.Experimental dermatology · 2025Article
- An epithelial cell culture model for sturgeon integument responds sensitively to 2,3,7,8-tetrachlorodibenzo-p-dioxin exposure.Scientific reports · 2025Article
- Cornified Epithelial Teeth of Jawless Vertebrates Contain Proteins Similar to Keratin-Associated Proteins of Mammalian Skin Appendages.Journal of developmental biology · 2025Article
- Skin Appendage Proteins of Tetrapods: Building Blocks of Claws, Feathers, Hair and Other Cornified Epithelial Structures.Animals : an open access journal from MDPI · 2025Review
- Convergent Evolution of Cysteine-Rich Keratins in Horny Teeth of Jawless Vertebrates and in Cornified Skin Appendages of Amniotes.Molecular biology and evolution · 2025Article
- Convergent Evolution Has Led to the Loss of Claw Proteins in Snakes and Worm Lizards.Genome biology and evolution · 2025Article
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7 authors.
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Abstract
Transglutaminases (TGMs) cross-link proteins by introducing covalent bonds between glutamine and lysine residues. These cross-links are essential for epithelial cornification which enables tetrapods to live on land. Here, we investigated which evolutionary adaptations of vertebrates were associated with specific changes in the family of TGM genes. We determined the catalog of TGMs in the main clades of vertebrates, performed a comprehensive phylogenetic analysis of TGMs, and localized the distribution of selected TGMs in tissues. Our data suggest that TGM1 is the phylogenetically oldest epithelial TGM, with orthologs being expressed in the cornified teeth of the lamprey, a basal vertebrate. Gene duplications led to the origin of TGM10 in stem vertebrates, the origin of TGM2 in jawed vertebrates, and an increasing number of epithelium-associated TGM genes in the lineage leading to terrestrial vertebrates. TGM9 is expressed in the epithelial egg tooth, and its evolutionary origin in stem amniotes coincided with the evolution of embryonic development in eggs that are surrounded by a protective shell. Conversely, viviparous mammals have lost both the epithelial egg tooth and TGM9. TGM3 and TGM6 evolved as regulators of cornification in hair follicles and underwent pseudogenization upon the evolutionary loss of hair in cetaceans. Taken together, this study reveals the gain and loss of vertebrate TGM genes in association with the evolution of cornified skin appendages and suggests an important role of TGM9 in the evolution of amniotes.
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