PBX3
PBX homeobox 3

Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific. Predicted to be involved in several processes, including embryonic organ development; eye development; and nervous system development. Predicted to act upstream of or within several processes, including adult locomotory behavior; dorsal spinal cord development; and regulation of respiratory gaseous exchange by nervous system process. Predicted to be located in chromatin. Predicted to be part of transcription regulator complex. Biomarker of esophagus squamous cell carcinoma. [provided by Alliance of Genome Resources, Jul 2025]

Member of: DE-6 DE-6.1
Biological processes 23 terms
Expression (TPM)
PBX3 — as a Regulated Gene

TFs regulating PBX3 0 TFs

Transcription factors with Perturb-seq knockdown data for PBX3. 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 = PBX3 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 PBX3

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of PBX3, 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
chr9:125,407,852–125,408,856 339.9 kb Distal (>10kb) Multiome HiCAR 615
chr9:125,515,099–125,515,938 232.7 kb Distal (>10kb) Multiome 114
chr9:125,706,743–125,707,646 40.9 kb Distal (>10kb) Multiome 730
chr9:125,745,797–125,748,398 1.7 kb Proximal (<10kb) Multiome 1003

Genome Browser

Genomic view of the PBX3 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.

chr9:125,397,852 – 125,758,398
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq