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  1. Article

    Open Access

    Phylogenetic comparisons reveal mosaic histories of larval and adult shell matrix protein deployment in pteriomorph bivalves

    Molluscan shells are organo-mineral composites, in which the dominant calcium carbonate is intimately associated with an organic matrix comprised mainly of proteins and polysaccharides. However, whether the va...

    Ran Zhao, Takeshi Takeuchi, Ryo Koyanagi, Alejandro Villar-Briones in Scientific Reports (2020)

  2. Article

    Open Access

    Functional shell matrix proteins tentatively identified by asymmetric snail shell morphology

    Molluscan shell matrix proteins (SMPs) are essential in biomineralization. Here, we identify potentially important SMPs by exploiting the asymmetric shell growth in snail, Lymnaea stagnalis. Asymmetric shells req...

    Akito Ishikawa, Keisuke Shimizu, Yukinobu Isowa, Takeshi Takeuchi in Scientific Reports (2020)

  3. Article

    Open Access

    The habu genome reveals accelerated evolution of venom protein genes

    Evolution of novel traits is a challenging subject in biological research. Several snake lineages developed elaborate venom systems to deliver complex protein mixtures for prey capture. To understand mechanism...

    Hiroki Shibata, Takahito Chijiwa, Naoko Oda-Ueda, Hitomi Nakamura in Scientific Reports (2018)

  4. Article

    Open Access

    The Lingula genome provides insights into brachiopod evolution and the origin of phosphate biomineralization

    The evolutionary origins of lingulid brachiopods and their calcium phosphate shells have been obscure. Here we decode the 425-Mb genome of Lingula anatina to gain insights into brachiopod evolution. Comprehensive...

    Yi-Jyun Luo, Takeshi Takeuchi, Ryo Koyanagi, Lixy Yamada in Nature Communications (2015)