| ID | Type | Location (GRCh37) | Location (GRCh38) | Length | GC content |
|---|---|---|---|---|---|
| hsa_MBNL1_0000900 | Exon-Exon | chr3:151985829-152018156 | chr3:152268040-152300367 | 2016 nt | 0.4866 |
| hsa_MBNL1_0002100 | Intron-Exon-Intron | chr3:152016771-152018156 | chr3:152298982-152300367 | 1386 nt | 0.4214 |
| hsa_MBNL1_0002200 | Exon-Exon | chr3:152017194-152018156 | chr3:152299405-152300367 | 963 nt | 0.4247 |
| hsa_MBNL1_0003200 | Exon-Exon | chr3:152017194-152183569 | chr3:152299405-152465780 | 250 nt | 0.3120 |
| hsa_chr3_0289300 | Intergenic-Intergenic | chr3:152031193-152031396 | chr3:152313404-152313607 | 204 nt | 0.3480 |
| hsa_MBNL1_0011600 | Exon-Exon | chr3:152132730-152150709 | chr3:152414941-152432920 | 375 nt | 0.5120 |
| hsa_MBNL1_0012500 | Exon-Exon | chr3:152132730-152165562 | chr3:152414941-152447773 | 841 nt | 0.5054 |
| hsa_MBNL1_0014400 | Exon-Exon | chr3:152163071-152165562 | chr3:152445282-152447773 | 466 nt | 0.5000 |
| hsa_MBNL1_0014900 | Exon-Exon | chr3:152164493-152174150 | chr3:152446704-152456361 | 303 nt | 0.5248 |
| hsa_MBNL1_0015400 | Exon-Exon | chr3:152173331-152174150 | chr3:152455542-152456361 | 131 nt | 0.5573 |
A study in mice and Drosophila demonstrated that the circMBNL1 regulates the production of its linear mRNA counterpart in cis through competition with canonical splicing [Patop et al. DOI:10.15252/embj.2018100836]. A separate review confirmed its role as a splicing competitor that adversely affects canonical pre-mRNA splicing [Misir et al. DOI:10.1038/s41418-022-00948-7]. Research in mammalian neural tissue indicates that the circMBNL1 is synaptically-enriched and abundant in the dendritic arbor, suggesting a role in synaptic function [Mehta et al. DOI:10.1016/j.pneurobio.2020.101746].