| 书目名称 | Comparative Molecular Neurobiology | | 编辑 | Yves Pichon | | 视频video | | | 丛书名称 | Experientia Supplementum | | 图书封面 |  | | 描述 | It is generally accepted that all living organisms present on earth derive from one single primordial cell born several billion years ago. One important step in the evolution occurred some 1. 5 billion years ago with the transition from small procaryote cells with relatively simple internal structures such as bacteria to larger and more compleX: eucaryotic cells such as those found in higher animals and plants. Large membrane proteins which enable the cells to communicate appeared early in evolution, and it is believed that the nerve membrane receptors and ionic channels which are observed today in both invertebrate and vertebrate species derive from a common ancestor. Basically, the three identified superfamilies, 1) ionotropic receptors (i. e. receptors containing an integral ionic channel), 2) metabotropic receptors (receptors coupled to G proteins) and 3) voltage-dependent ionic channels (Na+, K + and Ca2+ channels) were already well differentiated when vertebrates separated from invertebrate species. The large number of subtypes which are observed in each superfamily may be of more recent evolutionary origin. To understand how this happened, the best approach was to compare t | | 出版日期 | Book 1993 | | 关键词 | conservation; evolution; membrane proteins; molecular biology; ribosomal RNA | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-0348-7265-2 | | isbn_softcover | 978-3-0348-7267-6 | | isbn_ebook | 978-3-0348-7265-2Series ISSN 1664-431X Series E-ISSN 2504-3692 | | issn_series | 1664-431X | | copyright | Birkhäuser Verlag 1993 |
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发表于 2025-3-21 18:43:42
