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Molecular Evolution of Tryptophan Hydroxylases in Vertebrates: A Comparative Genomic Survey
http://hdl.handle.net/10659/00006660
http://hdl.handle.net/10659/0000666067602434-a239-4cbb-91cf-857f63ad33f0
名前 / ファイル | ライセンス | アクション |
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R-2020-175_teraoka.pdf (3.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-11-18 | |||||
タイトル | ||||||
タイトル | Molecular Evolution of Tryptophan Hydroxylases in Vertebrates: A Comparative Genomic Survey | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tryptophan hydroxylase (TPH) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | serotonin | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | melatonin biosynthesis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | phylogenetic analysis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | molecular evolution | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | positive selection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | vertebrate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | tryptophan hydroxylase (TPH) | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | serotonin | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | melatonin biosynthesis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | phylogenetic analysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | molecular evolution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | positive selection | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vertebrate | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Xu, Junmin
× Xu, Junmin× Li, Yanping× Lv, Yunyun× Bian, Chao× You, Xinxin× 遠藤, 大二× TERAOKA, Hiroki× Shi, Qiong |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Serotonin is a neurotransmitter involved in various physiological processes in the central and peripheral nervous systems. Serotonin is also a precursor for melatonin biosynthesis, which mainly occurs in the pineal gland of vertebrates. Tryptophan hydroxylase (TPH) acts as the rate-limiting enzyme in serotonin biosynthesis and is the initial enzyme involved in the synthesis of melatonin. Recently, two enzymes—TPH1 and TPH2—were reported to form the TPH family in vertebrates and to play divergent roles in serotonergic systems. Here, we examined the evolution of the TPH family from 70 vertebrate genomes. Based on the sequence similarity, we extracted 184 predicted tph homologs in the examined vertebrates. A phylogenetic tree, constructed on the basis of these protein sequences, indicated that tph genes could be divided into two main clades (tph1 and tph2), and that the two clades were further split into two subgroups of tetrapods and Actinopterygii. In tetrapods, and some basal non-teleost ray-finned fishes, only two tph isotypes exist. Notably, tph1 in most teleosts that had undergone the teleost-specific genome duplication could be further divided into tph1a and tph1b. Moreover, protein sequence comparisons indicated that TPH protein changes among vertebrates were concentrated at the NH2-terminal. The tertiary structures of TPH1 and TPH2 revealed obvious differences in the structural elements. Five positively selected sites were characterized in TPH2 compared with TPH1; these sites may reflect the functional divergence in enzyme activity and substrate specificity. In summary, our current work provides novel insights into the evolution of tph genes in vertebrates from a comprehensive genomic perspective. | |||||
書誌情報 |
Genes 巻 10, 号 3, p. 203-1-203-21, 発行日 2019-03 |
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DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3390/genes10030203 | |||||
権利(URI) | ||||||
権利情報 | http://creativecommons.org/licenses/by/4.0/ | http://creativecommons.org/licenses/by/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | MDPI | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |