The protein encoded by this gene is a member of the immunoglobulin superfamily. The protein contains two immunoglobulin domains and thirteen fibronectin type III domains. Fibronectin type III domains are present in both extracellular and intracellular proteins and tandem repeats are known to contain binding sites for DNA, heparin and the cell surface. This protein, and a homologous mouse sequence, are very similar to the Drosophila sidekick gene product but the specific function of this superfamily member is not yet known. Evidence for alternative splicing at this gene locus has been observed but the full-length nature of additional variants has not yet been determined. [provided by RefSeq, Jul 2008]
Transcription factors with Perturb-seq knockdown data for SDK2. 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 = SDK2 upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.
| TF | Mean coef | Binding | Outlier | TF→Gene link |
|---|
Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of SDK2, 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 |
|---|---|---|---|---|
| chr17:73,351,620–73,352,260 | 292.5 kb | Distal (>10kb) Multiome | 17 | |
| chr17:73,359,891–73,361,657 | 283.2 kb | Distal (>10kb) Multiome | 310 | |
| chr17:73,363,301–73,364,389 | 280.4 kb | Distal (>10kb) Multiome | 140 | |
| chr17:73,492,248–73,493,566 | 151.6 kb | Distal (>10kb) Multiome | 299 | |
| chr17:73,532,274–73,532,901 | 111.9 kb | Distal (>10kb) Multiome | 213 | |
| chr17:73,533,741–73,534,375 | 110.4 kb | Distal (>10kb) Multiome | 44 | |
| chr17:73,535,674–73,537,028 | 107.6 kb | Distal (>10kb) Multiome | 50 | |
| chr17:73,566,925–73,567,719 | 77.3 kb | Distal (>10kb) Multiome | 108 | |
| chr17:73,589,468–73,590,700 | 54.6 kb | Distal (>10kb) Multiome | 209 | |
| chr17:73,613,123–73,613,915 | 30.8 kb | Distal (>10kb) Multiome | 119 | |
| chr17:73,642,962–73,644,072 | 1.0 kb | Proximal (<10kb) Multiome | 312 | |
| chr17:73,644,194–73,645,741 | 854 bp | At TSS Multiome | 274 | |
| chr17:73,718,352–73,718,895 | 74.1 kb | Distal (>10kb) Multiome | 56 | |
| chr17:73,820,801–73,821,455 | 176.8 kb | Distal (>10kb) Multiome | 227 | |
| chr17:73,827,713–73,828,267 | 183.5 kb | Distal (>10kb) Multiome | 215 | |
| chr17:73,901,655–73,902,501 | 257.6 kb | Distal (>10kb) Multiome | 220 | |
| chr17:73,952,187–73,953,142 | 308.4 kb | Distal (>10kb) Multiome HiCAR | 218 |
Genomic view of the SDK2 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.