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相关概念视频

Restarting Stalled Replication Forks02:37

Restarting Stalled Replication Forks

DNA replication is initiated at sites containing predefined DNA sequences known as origins of replication. DNA is unwound at these sites by the minichromosome maintenance (MCM) helicase and other factors such as Cdc45 and the associated GINS complex.The unwound single strands are protected by replication protein A (RPA) until DNA polymerase starts synthesizing DNA at the 5’ end of the strand in the same direction as the replication fork. To prevent the replication fork from falling apart, a...
Restarting Stalled Replication Forks02:37

Restarting Stalled Replication Forks

DNA replication is initiated at sites containing predefined DNA sequences known as origins of replication. DNA is unwound at these sites by the minichromosome maintenance (MCM) helicase and other factors such as Cdc45 and the associated GINS complex.The unwound single strands are protected by replication protein A (RPA) until DNA polymerase starts synthesizing DNA at the 5’ end of the strand in the same direction as the replication fork. To prevent the replication fork from falling apart, a...
Nonsense-mediated mRNA Decay02:27

Nonsense-mediated mRNA Decay

The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Nonsense-mediated mRNA Decay02:27

Nonsense-mediated mRNA Decay

The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Censoring Survival Data01:09

Censoring Survival Data

Survival analysis is a statistical method used to analyze time-to-event data, often employed in fields such as medicine, engineering, and social sciences. One of the key challenges in survival analysis is dealing with incomplete data, a phenomenon known as "censoring." Censoring occurs when the event of interest (such as death, relapse, or system failure) has not occurred for some individuals by the end of the study period or is otherwise unobservable, and it might have many different reasons...
Groupthink01:34

Groupthink

When in group settings, we are often influenced by the thoughts, feelings, and behaviors around us. Groupthink is another phenomenon of conformity where modification of the opinions of members in a group aligns with what they believe is the group consensus (Janis, 1972). In such situations, the group often takes action that individuals would not perform outside the group setting because groups make more extreme decisions than individuals do. Moreover, groupthink can hinder opposing trains of...

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相关实验视频

Updated: May 13, 2026

Murine Left Pulmonary Hilar Clamp Model of Lung Ischemia Reperfusion Injury
06:45

Murine Left Pulmonary Hilar Clamp Model of Lung Ischemia Reperfusion Injury

Published on: April 12, 2024

停止拖延,否则你将会被迫沉默.

Karen S Kim Guisbert1, Erik J Sontheimer

  • 1Department of Molecular Biosciences, Northwestern University, 2205 Tech Drive, Evanston, IL 60208-3500, USA.

Cell
|March 5, 2013
PubMed
概括

对于基因调节至关重要的合体的停滞被确定为在Cryptococcus neoformans真菌中产生小RNA的触发因素. 这一发现为基因组防御机制提供了新的见解.

科学领域:

  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.
  • 菌类学 菌类学是指菌类学.

背景情况:

  • 小RNA对于基因调节和基因组防御至关重要,它们的生物发生需要动态序列选择.
  • 致病性真菌Cryptococcus neoformans利用小RNA通路来维持其生存和毒性.

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Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

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Last Updated: May 13, 2026

Murine Left Pulmonary Hilar Clamp Model of Lung Ischemia Reperfusion Injury
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A Method for Remotely Silencing Neural Activity in Rodents During Discrete Phases of Learning

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Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases
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