Small-scale study of co- and posttranscriptional splicing patterns
| Gene | Co-transcriptional splicing, intron n − 1 | Size intron | Type | Cotranscriptional splicing, intron n (last) | Size intron | Type |
| bp | bp | |||||
| Constitutive introns | ||||||
| ILK | >90% | 112 | NA | >85% | 183 | NA |
| RPL9 | >95% | 214 | NA | >80% | 307 | NA |
| PSMB6 | 100% | 197 | NA | 100% | 126 | NA |
| UTP15 | 100% | 166 | NA | >90% | 501 | NA |
| ATXN7L3 | 100% | 93 | NA | >90% | 105 | NA |
| EDC4 | >85% | 390 | NA | >90% | 224 | NA |
| PSENEN | 100% | 427 | NA | >75% | 184 | NA |
| ALKBH7 | ND | 88 | NA | 100% | 221 | NA |
| ROGDI | 100% | 97 | NA | >85% | 212 | NA |
| G6PC3 | >90% | 222 | NA | ND | NA | NA |
| LASS2 | 100% | 126 | NA | ND | NA | NA |
| TK1 | >95% | 100 | NA | ND | NA | NA |
| EWSR | ND | NA | NA | >80% | 3,600 | NA |
| Alternatively spliced introns | ||||||
| ARL6IP | 100% | 395 | Constitutive | >90% | 82 | Intron inclusion (<5%) |
| SYNGR2 | 100% | 456 | Constitutive | 100% | 90 | Intron inclusion (<5%) |
| FLAD1 | 85% | 2,185 | Constitutive | >90% | 116 | Intron inclusion (5%) |
| ARRDC1 | 80% | 84 | Constitutive | 70% | 74 | Intron inclusion (30%) |
| FAM132B | 80% | 1,272 | Constitutive | >95% | 66 | Intron inclusion (60%) |
| TUBB2C | 100% | 82 | Constitutive | 100% | 475 | Alternative 5′ and 3′ ss (>95%) |
| CLDN7 | ND | NA | NA | <10% | 285 | Exon cassette (90%) |
| TUBA1A | ND | NA | NA | >90% | 621 | Exon cassette (>95%) |
| LMNA | >80% | 1,256 | Exon cassette (>95%) | 100% | 323 | Constitutive |
| Gene | Co-transcriptional splicing, intron n − 1 | Size intron | Type | Cotranscriptional splicing, intron n (last) | Size intron | Type |
| ILK | >90% | 112 | NA | >85% | 183 | NA |
| RPL9 | >95% | 214 | NA | >80% | 307 | NA |
| PSMB6 | 100% | 197 | NA | 100% | 126 | NA |
| UTP15 | 100% | 166 | NA | >90% | 501 | NA |
| ATXN7L3 | 100% | 93 | NA | >90% | 105 | NA |
| EDC4 | >85% | 390 | NA | >90% | 224 | NA |
| PSENEN | 100% | 427 | NA | >75% | 184 | NA |
| ALKBH7 | ND | 88 | NA | 100% | 221 | NA |
| ROGDI | 100% | 97 | NA | >85% | 212 | NA |
| G6PC3 | >90% | 222 | NA | ND | NA | NA |
| LASS2 | 100% | 126 | NA | ND | NA | NA |
| TK1 | >95% | 100 | NA | ND | NA | NA |
| EWSR | ND | NA | NA | >80% | 3,600 | NA |
| ARL6IP | 100% | 395 | Constitutive | >90% | 82 | Intron inclusion (<5%) |
| SYNGR2 | 100% | 456 | Constitutive | 100% | 90 | Intron inclusion (<5%) |
| FLAD1 | 85% | 2,185 | Constitutive | >90% | 116 | Intron inclusion (5%) |
| ARRDC1 | 80% | 84 | Constitutive | 70% | 74 | Intron inclusion (30%) |
| FAM132B | 80% | 1,272 | Constitutive | >95% | 66 | Intron inclusion (60%) |
| TUBB2C | 100% | 82 | Constitutive | 100% | 475 | Alternative 5′ and 3′ ss (>95%) |
| CLDN7 | ND | NA | NA | <10% | 285 | Exon cassette (90%) |
| TUBA1A | ND | NA | NA | >90% | 621 | Exon cassette (>95%) |
| LMNA | >80% | 1,256 | Exon cassette (>95%) | 100% | 323 | Constitutive |
Frequences of alternative splicing events in U20S cells are shown in parentheses. NA, not applicable.
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