guanine

简明释义

英[ˈɡwɑːniːn]美[ˈɡwɑnin]

n. [生化]鸟嘌呤（核酸的基本成分）

n. （Guanine）人名；（法）加尼纳

英英释义

单词用法

同义词

反义词

例句

1.This review describes two kinds of new anti-HSV drugs, 4-oxo-dihydroquinolines and cytosine-phosphate-guanine (CpG) -containing oligodeoxynucleotide (ODN), which have been developed in recent years.

近年来发现4 -氧代二氢喹啉类和含有非甲基化胞嘧啶鸟嘌呤二核苷酸序列的寡脱氧核苷酸为抗单纯疱疹病毒的新药。

2.He USES zeroes and ones to represent the very first chemical building blocks of life (most likely compounds based on adenine, thymine, guanine, cytosine or uracil).

他用许多0和1来表示最早期时生命的化学成分(很可能是由腺嘌呤、胸腺嘧啶、鸟嘌呤、胞嘧啶和尿嘧啶组成的化合物)。

3.5 order differential voltammetry and cyclic voltammetry are used to investigate the electrochemical oxidation of guanine at a carbon fiber microelectrode.

5次微分伏安法和循环伏安法对鸟嘌呤在碳纤维微电极上的电化学行为进行了研究。

4.What relative proportions of adenine, guanine, thymine, and cytosine would you expect to find in the two DNA samples? What assumptions have you made?

在这两个DNA样品中腺嘌呤、鸟嘌呤、胞嘧啶、胸腺嘧啶之间的相互比例存在怎样的关系？

5.The most abundant bases are cytosine, thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) .

最丰富的碱基是胞嘧啶， 胸腺嘧啶， 尿嘧啶，腺嘌呤和鸟嘌呤。

6.It is a layer of guanine crystals which glow at night.

这是的氨基羟尿环水晶层数发光在晚上。

7.In DNA, the base pairing occurs between adenine and thymine, while cytosine pairs with guanine (鸟嘌呤).

在DNA中，腺嘌呤与胸腺嘌呤配对，而胞嘧啶则与guanine（鸟嘌呤）配对。

8.Researchers are studying how mutations in guanine (鸟嘌呤) can lead to genetic disorders.

研究人员正在研究guanine（鸟嘌呤）中的突变如何导致遗传性疾病。

9.The presence of guanine (鸟嘌呤) in RNA is crucial for protein synthesis.

RNA中guanine（鸟嘌呤）的存在对蛋白质合成至关重要。

10.When analyzing the sequence of DNA, scientists pay special attention to the amount of guanine (鸟嘌呤) present.

在分析DNA序列时，科学家特别关注其中guanine（鸟嘌呤）的含量。

11.Certain antiviral drugs target guanine (鸟嘌呤) analogs to inhibit viral replication.

某些抗病毒药物针对guanine（鸟嘌呤）类似物以抑制病毒复制。

作文

In the realm of molecular biology, the understanding of nucleic acids is fundamental. Among the four primary nucleobases that constitute DNA and RNA, one of the most significant is guanine, which is known as 鸟嘌呤 in Chinese. Guanine plays a crucial role in the genetic coding of organisms, serving as a building block for the structure of DNA. It pairs with cytosine, another nucleobase, to form stable hydrogen bonds that help maintain the double helix structure of DNA. This pairing is essential for accurate DNA replication and transcription processes, which are vital for cell division and the synthesis of proteins. The structure of guanine consists of a fused double-ring system, which classifies it as a purine. This unique configuration allows guanine to participate in various biochemical reactions. One interesting aspect of guanine is its ability to form different tautomeric forms, which can influence its pairing properties during DNA replication. These properties highlight the complexity and elegance of genetic information storage and transmission. In addition to its structural role, guanine is also involved in signaling pathways within cells. It is a precursor for the synthesis of guanosine triphosphate (GTP), an essential molecule that acts as a source of energy and a signaling molecule in various cellular processes. GTP is critical for protein synthesis, signal transduction, and the regulation of metabolic pathways. The conversion of guanine into GTP exemplifies how this nucleobase transcends its role in genetic material to become a key player in cellular metabolism and signaling. Furthermore, guanine is also implicated in various diseases when mutations occur in genes that contain this nucleobase. For instance, certain cancers have been linked to mutations in genes where guanine is present. Understanding the role of guanine in these contexts is crucial for developing targeted therapies and advancing our knowledge of genetic diseases. Research continues to uncover the multifaceted roles of guanine beyond its traditional understanding. Scientists are exploring its involvement in epigenetic modifications, where chemical changes to DNA affect gene expression without altering the DNA sequence itself. Such modifications can have lasting impacts on an organism's phenotype and adaptability, indicating that guanine may play a role in evolution and species diversity. In conclusion, guanine is not merely a component of nucleic acids; it is a vital molecule that influences a wide array of biological functions. Its importance in genetics, cellular signaling, and disease pathology underlines the intricate relationships between molecular structures and their functions in living organisms. As research progresses, our understanding of guanine and its diverse roles will undoubtedly expand, leading to new insights into biology and medicine.

在分子生物学的领域中，理解核酸是基础。四种主要的核碱基中，最重要的之一是鸟嘌呤，在中文中称为guanine。鸟嘌呤在生物体的遗传编码中发挥着至关重要的作用，作为DNA结构的构建块。它与另一种核碱基胞嘧啶配对，形成稳定的氢键，有助于维持DNA的双螺旋结构。这种配对对于准确的DNA复制和转录过程至关重要，这些过程对细胞分裂和蛋白质合成都是必不可少的。 鸟嘌呤的结构由一个融合的双环系统组成，这使其被分类为嘌呤。这种独特的构型使鸟嘌呤能够参与各种生化反应。鸟嘌呤的一个有趣方面是它能够形成不同的互变异构体，这可能影响其在DNA复制过程中的配对特性。这些特性突显了遗传信息存储和传递的复杂性和优雅性。 除了结构作用外，鸟嘌呤还参与细胞内的信号传导途径。它是合成鸟苷三磷酸（GTP）的前体，GTP是一种重要的分子，作为能量来源和各种细胞过程中的信号分子。GTP对蛋白质合成、信号转导和代谢途径的调节至关重要。鸟嘌呤转化为GTP的过程展示了这种核碱基如何超越其在遗传物质中的角色，成为细胞代谢和信号传导中的关键角色。 此外，当含有鸟嘌呤的基因发生突变时，它也与各种疾病有关。例如，某些癌症与含有鸟嘌呤的基因突变有关。理解鸟嘌呤在这些背景下的作用对于开发靶向治疗和推进我们对遗传疾病的认识至关重要。 研究继续揭示鸟嘌呤超越传统理解的多方面角色。科学家们正在探索其在表观遗传修饰中的作用，其中DNA的化学变化影响基因表达，而不改变DNA序列本身。这种修饰可能对生物体的表型和适应性产生持久影响，表明鸟嘌呤可能在进化和物种多样性中发挥作用。 总之，鸟嘌呤不仅仅是核酸的组成部分；它是一种重要的分子，影响着广泛的生物功能。在遗传学、细胞信号传导和疾病病理学中的重要性强调了分子结构与其在生物体内功能之间的复杂关系。随着研究的进展，我们对鸟嘌呤及其多样角色的理解无疑会扩展，为生物学和医学的新见解铺平道路。