Semantide (original) (raw)
Semantides (or semantophoretic molecules) are biological macromolecules that carry genetic information or a transcript thereof. Three different categories or semantides are distinguished: primary, secondary and tertiary. Primary Semantides are genes, which consist of DNA. Secondary semantides are chains of messenger RNA, which are transcribed from DNA. Tertiary semantides are polypeptides, which are translated from messenger RNA. In eukaryotic organisms, primary semantides may consist of nuclear, mitochondrial or plastid DNA. Not all primary semantides ultimately form tertiary semantides. Some primary semantides are not transcribed into mRNA (non-coding DNA) and some secondary semantides are not translated into polypeptides (non-coding RNA). The complexity of semantides varies greatly. For
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| dbo:abstract | Semantides (or semantophoretic molecules) are biological macromolecules that carry genetic information or a transcript thereof. Three different categories or semantides are distinguished: primary, secondary and tertiary. Primary Semantides are genes, which consist of DNA. Secondary semantides are chains of messenger RNA, which are transcribed from DNA. Tertiary semantides are polypeptides, which are translated from messenger RNA. In eukaryotic organisms, primary semantides may consist of nuclear, mitochondrial or plastid DNA. Not all primary semantides ultimately form tertiary semantides. Some primary semantides are not transcribed into mRNA (non-coding DNA) and some secondary semantides are not translated into polypeptides (non-coding RNA). The complexity of semantides varies greatly. For tertiary semantides, large globular polypeptide chains are most complex while structural proteins, consisting of repeating simple sequences, are least complex. The term semantide and related terms were coined by Linus Pauling and Emile Zuckerkandl. Although semantides are the major type of data used in modern phylogenetics, the term itself is not commonly used. (en) |
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| dct:subject | dbc:Phylogenetics |
| rdfs:comment | Semantides (or semantophoretic molecules) are biological macromolecules that carry genetic information or a transcript thereof. Three different categories or semantides are distinguished: primary, secondary and tertiary. Primary Semantides are genes, which consist of DNA. Secondary semantides are chains of messenger RNA, which are transcribed from DNA. Tertiary semantides are polypeptides, which are translated from messenger RNA. In eukaryotic organisms, primary semantides may consist of nuclear, mitochondrial or plastid DNA. Not all primary semantides ultimately form tertiary semantides. Some primary semantides are not transcribed into mRNA (non-coding DNA) and some secondary semantides are not translated into polypeptides (non-coding RNA). The complexity of semantides varies greatly. For (en) |
| rdfs:label | Semantide (en) |
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