英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

nucleoside    
核苷; 核甙

核□; 核□

nucleoside
n 1: a glycoside formed by partial hydrolysis of a nucleic acid

nucleoside \nucleoside\ n. (Biochem.)
A type of molecule found in all living organisms, present
mostly in chemically combined form as a component of nucleic
acids, and also in smaller amounts in free form, consisting
of a pentose sugar bound to a purine or pyrimidine base; two
types of nucleoside, {ribonucleoside} and
{deoxyribonucleoside}, are present. The most common bases
present in nucleosides are adenine, cytosine, uracil,
guanine, and thymine, and to a lesser extent hypoxanthine and
other bases are found. The most commmon ribonucleosides
composed from these bases are called adenosine, cytidine,
uridine, and guanosine. The forms esterified with
orthophosphoric at the 5-position of the pentose are called
nucleotides. The nucleotides form the monomer units which are
combined into DNA and RNA, which carry the genetic
information required for reproduction in all known organisms.
[PJC]


请选择你想看的字典辞典：
单词字典翻译
nucleoside查看　nucleoside　在百度字典中的解释百度英翻中〔查看〕
nucleoside查看　nucleoside　在Google字典中的解释Google英翻中〔查看〕
nucleoside查看　nucleoside　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Nucleoside - Wikipedia
    A nucleoside consists simply of a nucleobase (also termed a nitrogenous base) and a five-carbon sugar (ribose or 2'-deoxyribose) whereas a nucleotide is composed of a nucleobase, a five-carbon sugar, and one or more phosphate groups
  • Nucleoside | Description, Function Facts | Britannica
    A nucleoside is a structural subunit of nucleic acids, the heredity-controlling components of all living cells, that consists of a sugar molecule linked to a nitrogen-containing organic ring compound
  • A unified platform for nucleoside analog synthesis | Science
    Here, we describe the synthetic unification of all major classes of nucleoside analogs, including 4′-thio, 4′-imino, C-linked, N-linked, C4′-modified, and ProTides from a single nucleoside synthon that can be readily prepared in near enantiomeric purity from cheap and achiral materials
  • Nucleoside- Definition, Types, Structure, Functions
    A nucleoside is a molecule with a pentose sugar linked to a nitrogenous base or glycosylamines without a phosphate group attached to it
  • Nucleoside – Definition, Types, Structure, Functions
    A nucleoside is a type of organic molecule consisting of a nitrogenous base (also known as a nucleobase) and a sugar molecule The sugar in a nucleoside can be either ribose or deoxyribose, and it is linked to the nitrogenous base through a glycosidic bond
  • Nucleoside - an overview | ScienceDirect Topics
    Nucleoside is defined as a molecular structure consisting of a base moiety and a sugar moiety, playing key roles in neurotransmission, cardiovascular regulation, and as signaling molecules, as well as serving as intermediates in essential cellular biosynthetic pathways
  • Nucleoside vs. Nucleotide vs. Nucleic Acid - BOC Sciences
    What is nucleoside? Nucleoside is a general term for a class of glycosides, which are components of nucleic acids and nucleotides Nucleosides are formed by condensation of D-ribose or D-Z-deoxyribose with a pyrimidine or purine base
  • Editorial: Nucleosides, nucleotides and nucleic acids: chemistry and . . .
    The therapeutic success of the nucleoside Zidovudine (azidothymidine) A therapeutic approach has led to the synthesis of numerous families of active and specific antiviral nucleosides In addition, the development of broad-spectrum nucleosides opens up possibilities for combined therapy
  • Nucleosides: Structure, Functions, Biomarkers LC–MS MS Profiling
    Nucleoside analogs are cornerstone scaffolds in modern drug R D, powering antivirals and anticancer agents Their pharmacology hinges on native uptake (ENT CNT transporters) and stepwise phosphorylation by host or viral kinases to active mono di tri-phosphates
  • Nucleoside vs Nucleotide - Difference and Comparison | Diffen
    A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups





中文字典-英文字典  2005-2009