{"database":"GEO","file_versions":[{"headers":{"Content-Type":["application/json"]},"body":{"files":{"Other":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE325nnn/GSE325326/"]},"type":"primary"},"statusCode":"OK","statusCodeValue":200}],"scores":null,"additional":{"omics_type":["Transcriptomics"],"species":["Homo sapiens"],"gds_type":["Expression profiling by high throughput sequencing"],"full_dataset_link":["https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE325326"],"repository":["GEO"],"entry_type":["GSE"],"additional_accession":[]},"is_claimable":false,"name":"Codon-dependent regulation of mRNA translation and stability by ZC3H7A and ZC3H7B RNA-binding proteins","description":"The reduced translation elongation rate caused by the presence of non-optimal codons can negatively impact mRNA stability through translation-dependent decay. A key aspect of this process is the coupling of sensing the mRNA codon usage with the regulation of translation efficiency and stability. We found that two paralog RNA-binding proteins; ZC3H7A and ZC3H7B; which have only emerged in Chordates, preferentially bind to and reduce the stability and translation of mRNAs enriched in the non-optimal codons with A/U at their wobble sites (A/U3 codons). ZC3H7A/B engage with ribosomes that lack elongation factors and induce mRNA degradation or block translation initiation through their interactions with the CCR4-NOT and the GIGYF2/4EHP translation repressor complex, respectively. Depletion of ZC3H7A and ZC3H7B or 4EHP impairs the repression of non-optimal A/U3-rich mRNAs. This study provides insights into a unique mechanism in higher eukaryotes that couples codon usage with the regulation of translation efficiency and mRNA stability.","dates":{"publication":"2026/05/13"},"accession":"GSE325326","cross_references":{"GSM":["GSM9600839","GSM9600828","GSM9600829","GSM9600846","GSM9600835","GSM9600847","GSM9600836","GSM9600825","GSM9600848","GSM9600837","GSM9600826","GSM9600827","GSM9600838","GSM9600842","GSM9600831","GSM9600843","GSM9600832","GSM9600844","GSM9600833","GSM9600845","GSM9600834","GSM9600840","GSM9600830","GSM9600841"],"GPL":["34284"],"GSE":["325326"],"taxon":["Homo sapiens"]}}