JoVE Logo
저자
연락처

로그인

Core - Molecular Biology

    Chapter 11

    Additional Roles of RNA

    11.1 : Transcription Attenuation in Prokaryotes02:42

    11.1 : Transcription Attenuation in Prokaryotes

    Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin ...

    15.1K views
    11.2 : Riboswitches01:56

    11.2 : Riboswitches

    Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches ...

    8.0K views
    11.3 : RNA Editing02:23

    11.3 : RNA Editing

    RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or ...

    8.9K views
    11.4 : Regulated mRNA Transport02:22

    11.4 : Regulated mRNA Transport

    In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the ...

    6.2K views
    11.5 : Leaky Scanning02:28

    11.5 : Leaky Scanning

    During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG ...

    5.1K views
    11.6 : mRNA Stability and Gene Expression02:51

    11.6 : mRNA Stability and Gene Expression

    The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the ...

    5.5K views
    11.7 : RNA Interference

    11.7 : RNA Interference

    RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its ...

    6.6K views
    11.8 : MicroRNAs

    11.8 : MicroRNAs

    MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA ...

    10.1K views
    11.9 : siRNA - Small Interfering RNAs02:30

    11.9 : siRNA - Small Interfering RNAs

    Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional ...

    16.6K views
    11.10 : piRNA - Piwi-interacting RNAs02:57

    11.10 : piRNA - Piwi-interacting RNAs

    PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while ...

    6.8K views
    11.11 : CRISPR and crRNAs02:53

    11.11 : CRISPR and crRNAs

    Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect ...

    16.7K views
    11.12 : lncRNA - Long Non-coding RNAs02:39

    11.12 : lncRNA - Long Non-coding RNAs

    In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding ...

    8.5K views
    11.13 : Ribozymes02:47

    11.13 : Ribozymes

    The term ribozyme is used for RNA that can act as an enzyme. Ribozymes are mainly found in selected viruses, bacteria, plant organelles, and lower ...

    11.2K views
    11.14 : Conditions on Early Earth

    11.14 : Conditions on Early Earth

    Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen ...

    2.1K views
    JoVE Logo

    개인 정보 보호

    이용 약관

    정책

    연락처

    사서에게 추천하기

    JoVE 뉴스레터

    연구

    교육

    저자

    사서

    JoVE 소개

    Copyright © 2025 MyJoVE Corporation. 판권 소유