CTNNA2
catenin alpha 2 | CAP-R, CT114

Enables actin filament binding activity. Involved in negative regulation of Arp2/3 complex-mediated actin nucleation; regulation of neuron migration; and regulation of neuron projection development. Located in cytoplasm. Implicated in complex cortical dysplasia with other brain malformations. [provided by Alliance of Genome Resources, Jul 2025]

Biological processes 53 terms
actin cytoskeleton (GO:0015629)actin filament binding (GO:0051015)actin filament binding (GO:0051015)actin filament binding (GO:0051015)adherens junction (GO:0005912)adherens junction (GO:0005912)adherens junction (GO:0005912)axon (GO:0030424)axon (GO:0030424)axonogenesis (GO:0007409)axonogenesis (GO:0007409)basolateral plasma membrane (GO:0016323)beta-catenin binding (GO:0008013)brain morphogenesis (GO:0048854)brain morphogenesis (GO:0048854)cadherin binding (GO:0045296)cadherin binding (GO:0045296)catenin complex (GO:0016342)cell adhesion (GO:0007155)cell migration (GO:0016477)cell-cell adhesion (GO:0098609)cell-cell adhesion (GO:0098609)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytoskeleton (GO:0005856)cytoskeleton organization (GO:0007010)cytosol (GO:0005829)dendrite morphogenesis (GO:0048813)dendrite morphogenesis (GO:0048813)extrinsic component of postsynaptic membrane (GO:0098890)extrinsic component of presynaptic membrane (GO:0098888)hippocampal mossy fiber to CA3 synapse (GO:0098686)identical protein binding (GO:0042802)lamellipodium (GO:0030027)modification of postsynaptic actin cytoskeleton (GO:0098885)negative regulation of Arp2/3 complex-mediated actin nucleation (GO:0034316)nucleus (GO:0005634)parallel fiber to Purkinje cell synapse (GO:0098688)plasma membrane (GO:0005886)postsynaptic density (GO:0014069)postsynaptic density, intracellular component (GO:0099092)prepulse inhibition (GO:0060134)prepulse inhibition (GO:0060134)presynaptic active zone cytoplasmic component (GO:0098831)protein binding (GO:0005515)radial glia guided migration of Purkinje cell (GO:0021942)radial glia guided migration of Purkinje cell (GO:0021942)regulation of neuron migration (GO:2001222)regulation of neuron projection development (GO:0010975)regulation of synapse structural plasticity (GO:0051823)regulation of synapse structural plasticity (GO:0051823)structural constituent of cytoskeleton (GO:0005200)structural molecule activity (GO:0005198)
Expression (TPM)
CTNNA2 — as a Regulated Gene

TFs regulating CTNNA2 0 TFs

Transcription factors with Perturb-seq knockdown data for CTNNA2. 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 = CTNNA2 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 CTNNA2

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of CTNNA2, 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
chr2:79,294,771–79,295,339 217.9 kb Distal (>10kb) Multiome 97
chr2:79,511,233–79,511,621 1.4 kb Proximal (<10kb) 383
chr2:79,511,892–79,513,781 138 bp At TSS Multiome 385
chr2:79,522,600–79,522,805 9.6 kb Proximal (<10kb) 7
chr2:79,669,535–79,670,559 157.3 kb Distal (>10kb) Multiome 182

Genome Browser

Genomic view of the CTNNA2 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.

chr2:79,284,771 – 79,680,559
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq