In the cytoplasm, YTHDF1 mediates translation initiation of m6A-containing transcripts by binding directly to m6A and recruiting eukaryotic initiation factor 3 (eIF3), thereby facilitating the loading of the eukaryotic small ribosomal subunit (40S). YTHDF2 promotes mRNA decay by binding to CCR4–NOT transcription complex subunit 1 (CNOT1), thereby facilitating the recruitment of the CCR4–NOT complex and inducing accelerated deadenylation. b|Methylated transcripts may be sorted by reader proteins into a fast track (right) for processing, translation and decay. This fast-tracking effectively groups transcripts with otherwise markedly different properties to ensure their timely
and coordinated translation and degradation, possibly generating a sharp ‘pulse’ of
gene expression to satisfy a need for translational bursts and subsequent clearance of these transcripts. gure 2 | m6A-dependent mRNA processing promotes translation and decay, and affects splicing. a | After being deposited by the methyltransferase core catalytic components methyltransferase-like 3 (METTL3) and METTL14, N6-methyladenosine (m6A) is recognized by various reader proteins. In the nucleus, heterogeneous nuclear ribonucleoprotein C (HNRNPC) functions as an indirect m6A reader by binding unstructured m6A switch regions and regulating splicing, whereas YT521‑B homology (YTH) domain containing 1 (YTHDC1) regulates alternative
splicing by binding m6A directly and recruiting the splicing factors serine and
arginine-rich splicing factor 3 (SRSF3) while blocking binding by SRSF10. HNRNPA2B1
also mediates alternative splicing in a manner similar to YTHDC1. In the cytoplasm,
YTHDF1 mediates translation initiation of m6
A-containing transcripts by binding directly to m6A and recruiting eukaryotic initiation factor 3 (eIF3), thereby facilitating the loading of the eukaryotic small ribosomal subunit (40S). YTHDF2 promotes mRNA decay by binding to CCR4–NOT transcription complex subunit 1 (CNOT1), thereby facilitating the recruitment of the CCR4–NOT complex and inducing accelerated deadenylation. b|Methylated transcripts may be sorted by reader proteins into a fast track (right) for processing, translation and decay. This fast-tracking effectively groups transcripts with otherwise markedly different properties to ensure their timely
and coordinated translation and degradation, possibly generating a sharp ‘pulse’ of
gene expression to satisfy a need for translational bursts and subsequent clearance of these transcripts.
In the cytoplasm, YTHDF1 mediates translation initiation of m6A-containing transcripts by binding directly to m6A and recruiting eukaryotic initiation factor 3 (eIF3), thereby facilitating the loading of the eukaryotic small ribosomal subunit (40S). YTHDF2 promotes mRNA decay by binding to CCR4–NOT transcription complex subunit 1 (CNOT1), thereby facilitating the recruitment of the CCR4–NOT complex and inducing accelerated deadenylation. b|Methylated transcripts may be sorted by reader proteins into a fast track (right) for processing, translation and decay. This fast-tracking effectively groups transcripts with otherwise markedly different properties to ensure their timely
and coordinated translation and degradation, possibly generating a sharp ‘pulse’ of
gene expression to satisfy a need for translational bursts and subsequent clearance of these transcripts. gure 2 | m6A-dependent mRNA processing promotes translation and decay, and affects splicing. a | After being deposited by the methyltransferase core catalytic components methyltransferase-like 3 (METTL3) and METTL14, N6-methyladenosine (m6A) is recognized by various reader proteins. In the nucleus, heterogeneous nuclear ribonucleoprotein C (HNRNPC) functions as an indirect m6A reader by binding unstructured m6A switch regions and regulating splicing, whereas YT521‑B homology (YTH) domain containing 1 (YTHDC1) regulates alternative
splicing by binding m6A directly and recruiting the splicing factors serine and
arginine-rich splicing factor 3 (SRSF3) while blocking binding by SRSF10. HNRNPA2B1
also mediates alternative splicing in a manner similar to YTHDC1. In the cytoplasm,
YTHDF1 mediates translation initiation of m6
A-containing transcripts by binding directly to m6A and recruiting eukaryotic initiation factor 3 (eIF3), thereby facilitating the loading of the eukaryotic small ribosomal subunit (40S). YTHDF2 promotes mRNA decay by binding to CCR4–NOT transcription complex subunit 1 (CNOT1), thereby facilitating the recruitment of the CCR4–NOT complex and inducing accelerated deadenylation. b|Methylated transcripts may be sorted by reader proteins into a fast track (right) for processing, translation and decay. This fast-tracking effectively groups transcripts with otherwise markedly different properties to ensure their timely
and coordinated translation and degradation, possibly generating a sharp ‘pulse’ of
gene expression to satisfy a need for translational bursts and subsequent clearance of these transcripts.
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