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Jun 7, 2021 · 近日，英国剑桥大学的研究人员在国际顶尖学术期刊 Science 发表了题为：Sense codon reassignment enables viral resistance and encoded polymer synthesis 的研究论文【1】。 该研究报告称，对细菌基因组的广泛重写可以在一种蛋白质中添加许多新的非天然氨基酸（ncAAs）。 这项工作可能为合成新型抗生素和抗肿瘤药物开辟新的途径。 自然生物的蛋白质翻译系统可以读取信使RNA（mRNA）中的所有64种三联体密码子，这些密码子编码相应的氨基 …

根据无义突变的三种昵称，三个终止密码子UAA叫赭石（ochre）密码子（相应于 赭石突变 ）；UAG叫 琥珀密码子 （相应于琥珀突变）；UGA叫蛋白石（opal）密码子（相应于蛋白石突变）。

UAG - * UGU - Cys UGC - Cys UGA - * UGG - Trp: U C A G: C: CUU - Leu CUC - Leu CUA - Leu CUG - Leu : CCU - Pro CCC - Pro CCA - Pro ... ACU - Thr ACC - Thr ACA - Thr ACG - Thr : AAU - Asn AAC - Asn AAA - Lys AAG - Lys : AGU - Ser AGC - Ser AGA - Arg AGG - Arg: U C A G: G: GUU - Val GUC - Val GUA - Val GUG - Val : GCU - Ala GCC - Ala GCA - Ala ...

However, there are more than 31 tRNA anticodons possible for the translation of all 64 mRNA codons. For example, serine has a fourfold degenerate site at the 3rd position (UCU, UCC, UCA, UCG), which can be translated by AGI (for UCU, UCC and UCA) and AGC on tRNA (for UCG) but also by AGG and AGU.

Dec 13, 2024 · Translate the following mRNA sequence into the correct amino acid sequence. AUG-GAA-UCC-UAG. Use the table below to put the amino acids in order for your answer.

Access easy-to-understand explanations and practical examples on key biology topics, from cells to ecosystems. Learn at your own pace with bite-sized, verified content. Which of the following is a DNA strand complementary to CGA ATC AGC? Which of the following statements concerning transcription is true?

Which of the following is a DNA strand complementary to CGA ATC AGC? Access easy-to-understand explanations and practical examples on key biology topics, from cells to ecosystems. Learn at your own pace with bite-sized, verified content. -never repaired. -repaired by DNA replication. -cut out and replaced. -repaired during translation.

-AGC -UAG -AUG -UAG, The codon table identifies the amino acid sequence that can be translated from a human mRNA sequence. This chart can also be used to identify amino acid sequences for other organisms.