EIF3B
eukaryotic translation initiation factor 3 subunit B | PRT1, EIF3S9

Enables RNA binding activity. Contributes to translation initiation factor activity. Involved in several processes, including IRES-dependent viral translational initiation; translational initiation; and viral translational termination-reinitiation. Located in cytoplasmic stress granule. Part of eukaryotic translation initiation factor 3 complex. [provided by Alliance of Genome Resources, Jul 2025]

Member of: DE-1 DE-1.14 Developmental clusters: GC4
Biological processes 35 terms
IRES-dependent viral translational initiation (GO:0075522)RNA binding (GO:0003723)RNA binding (GO:0003723)cytoplasm (GO:0005737)cytoplasmic stress granule (GO:0010494)cytoplasmic stress granule (GO:0010494)cytoplasmic translational initiation (GO:0002183)cytosol (GO:0005829)cytosol (GO:0005829)eukaryotic 43S preinitiation complex (GO:0016282)eukaryotic 48S preinitiation complex (GO:0033290)eukaryotic translation initiation factor 3 complex (GO:0005852)eukaryotic translation initiation factor 3 complex (GO:0005852)eukaryotic translation initiation factor 3 complex (GO:0005852)eukaryotic translation initiation factor 3 complex, eIF3m (GO:0071541)extracellular exosome (GO:0070062)formation of cytoplasmic translation initiation complex (GO:0001732)formation of cytoplasmic translation initiation complex (GO:0001732)molecular adaptor activity (GO:0060090)nucleic acid binding (GO:0003676)protein binding (GO:0005515)regulation of translational initiation (GO:0006446)synapse (GO:0045202)translation initiation factor activity (GO:0003743)translation initiation factor activity (GO:0003743)translation initiation factor activity (GO:0003743)translation initiation factor activity (GO:0003743)translation initiation factor activity (GO:0003743)translation initiation factor activity (GO:0003743)translation initiation factor binding (GO:0031369)translational initiation (GO:0006413)translational initiation (GO:0006413)translational initiation (GO:0006413)translational initiation (GO:0006413)viral translational termination-reinitiation (GO:0075525)
Expression (TPM)
EIF3B — as a Regulated Gene

TFs regulating EIF3B 0 TFs

Transcription factors with Perturb-seq knockdown data for EIF3B. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = EIF3B upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to EIF3B

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of EIF3B, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr7:1,368,617–1,369,820 985.6 kb Distal (>10kb) Multiome HiCAR 421
chr7:2,232,261–2,233,424 122.0 kb Distal (>10kb) Multiome HiCAR 809
chr7:2,241,746–2,242,506 112.7 kb Distal (>10kb) Multiome HiCAR 794
chr7:2,313,875–2,314,819 40.4 kb Distal (>10kb) Multiome 684
chr7:2,353,760–2,355,437 213 bp At TSS Multiome 1060
chr7:2,403,048–2,404,583 48.7 kb Distal (>10kb) Multiome 775
chr7:2,451,319–2,452,043 96.7 kb Distal (>10kb) Multiome 660
chr7:2,518,679–2,520,557 164.8 kb Distal (>10kb) Multiome 567
chr7:2,555,131–2,556,097 200.9 kb Distal (>10kb) Multiome 772
chr7:2,558,641–2,559,572 204.2 kb Distal (>10kb) Multiome 669
chr7:2,631,170–2,632,859 276.9 kb Distal (>10kb) Multiome 658
chr7:2,646,545–2,647,390 292.2 kb Distal (>10kb) Multiome 245

Genome Browser

Genomic view of the EIF3B locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr7:1,358,617 – 2,657,390
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq