ITSN1
intersectin 1 | MGC134948, MGC134949, SH3P17, ITSN, SH3D1A

The protein encoded by this gene is a cytoplasmic membrane-associated protein that indirectly coordinates endocytic membrane traffic with the actin assembly machinery. In addition, the encoded protein may regulate the formation of clathrin-coated vesicles and could be involved in synaptic vesicle recycling. This protein has been shown to interact with dynamin, CDC42, SNAP23, SNAP25, SPIN90, EPS15, EPN1, EPN2, and STN2. Multiple transcript variants encoding different isoforms have been found for this gene, but the full-length nature of only two of them have been characterized so far. [provided by RefSeq, Jul 2008]

Member of: DE-2 DE-2.1
Biological processes 54 terms
apical dendrite (GO:0097440)calcium ion binding (GO:0005509)calcium ion binding (GO:0005509)calyx of Held (GO:0044305)clathrin-coated pit (GO:0005905)clathrin-coated pit (GO:0005905)clathrin-coated pit (GO:0005905)clathrin-dependent synaptic vesicle endocytosis (GO:0150007)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytoplasmic vesicle (GO:0031410)cytosol (GO:0005829)cytosol (GO:0005829)dendritic spine (GO:0043197)endocytic vesicle (GO:0030139)endomembrane system (GO:0012505)endosomal transport (GO:0016197)endosome (GO:0005768)glutamatergic synapse (GO:0098978)guanyl-nucleotide exchange factor activity (GO:0005085)guanyl-nucleotide exchange factor activity (GO:0005085)guanyl-nucleotide exchange factor activity (GO:0005085)intracellular protein localization (GO:0008104)intracellular signal transduction (GO:0035556)intracellular vesicle (GO:0097708)intracellular vesicle (GO:0097708)kinase activator activity (GO:0019209)lamellipodium (GO:0030027)molecular adaptor activity (GO:0060090)neuronal cell body (GO:0043025)nuclear envelope (GO:0005635)nuclear envelope (GO:0005635)nucleoplasm (GO:0005654)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)positive regulation of caveolin-mediated endocytosis (GO:2001288)positive regulation of dendritic spine development (GO:0060999)positive regulation of growth hormone secretion (GO:0060124)postsynaptic actin cytoskeleton (GO:0098871)postsynaptic endocytic zone (GO:0098843)presynaptic endocytic zone (GO:0098833)proline-rich region binding (GO:0070064)protein binding (GO:0005515)protein-macromolecule adaptor activity (GO:0030674)recycling endosome (GO:0055037)regulation of cell communication (GO:0010646)regulation of modification of postsynaptic actin cytoskeleton (GO:1905274)regulation of postsynapse organization (GO:0099175)regulation of signaling (GO:0023051)regulation of small GTPase mediated signal transduction (GO:0051056)synapse (GO:0045202)synaptic vesicle endocytosis (GO:0048488)
Expression (TPM)
ITSN1 — as a Regulated Gene

TFs regulating ITSN1 0 TFs

Transcription factors with Perturb-seq knockdown data for ITSN1. 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 = ITSN1 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 ITSN1

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of ITSN1, 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
chr21:33,402,567–33,402,985 239.6 kb Distal (>10kb) Multiome 218
chr21:33,403,116–33,404,351 239.1 kb Distal (>10kb) Multiome 570
chr21:33,478,861–33,480,615 162.4 kb Distal (>10kb) Multiome 839
chr21:33,491,033–33,492,145 150.9 kb Distal (>10kb) Multiome 740
chr21:33,541,871–33,543,585 100.5 kb Distal (>10kb) Multiome 996
chr21:33,587,947–33,589,340 53.7 kb Distal (>10kb) Multiome 866
chr21:33,641,108–33,643,411 390 bp At TSS Multiome 1018
chr21:33,651,077–33,651,511 8.6 kb Proximal (<10kb) 61
chr21:33,652,026–33,652,412 9.5 kb Proximal (<10kb) 55
chr21:33,894,789–33,895,286 252.5 kb Distal (>10kb) Multiome HiCAR 371
chr21:33,915,370–33,916,223 273.4 kb Distal (>10kb) Multiome 730

Genome Browser

Genomic view of the ITSN1 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.

chr21:33,392,567 – 33,926,223
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq