相关实验视频

Updated: Aug 10, 2026

Preparation of Viral DNA from Nucleocapsids
12:45

Preparation of Viral DNA from Nucleocapsids

Published on: August 16, 2011

细菌病毒中蛋白质和DNA的结构

D W Banner, C Nave, D A Marvin

    Nature
    |February 26, 1981
    PubMed
    概括

    研究人员使用磁场来改善丝状病毒的X射线纤维衍射. 这项技术揭示了fd (f1,M13) 病毒结构内的蛋白质和DNA排列的新细节.

    更多相关视频

    Purification of Viral DNA for the Identification of Associated Viral and Cellular Proteins08:26

    Purification of Viral DNA for the Identification of Associated Viral and Cellular Proteins

    Published on: August 31, 2017

    Generation and Assembly of Virus-Specific Nucleocapsids of the Respiratory Syncytial Virus09:08

    Generation and Assembly of Virus-Specific Nucleocapsids of the Respiratory Syncytial Virus

    Published on: July 27, 2021

    相关概念视频

    Viral Structure00:56

    Viral Structure

    Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
    Lytic Cycle of Bacteriophages01:30

    Lytic Cycle of Bacteriophages

    Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the lytic replication...
    Intracellular Movement of Viruses and Bacteria01:10

    Intracellular Movement of Viruses and Bacteria

    Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a virus that...
    Introduction to Virus01:28

    Introduction to Virus

    Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
    Size and Structure of Viral Genomes01:26

    Size and Structure of Viral Genomes

    Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
    DNA Bacteriophages01:26

    DNA Bacteriophages

    Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...