rs199736345
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2
The NM_004239.4(TRIP11):c.5719+2T>C variant causes a splice donor, intron change. The variant allele was found at a frequency of 0.000235 in 1,607,476 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004239.4 splice_donor, intron
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 10 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TRIP11 | NM_004239.4 | c.5719+2T>C | splice_donor_variant, intron_variant | Intron 20 of 20 | ENST00000267622.8 | NP_004230.2 | ||
TRIP11 | NM_001321851.1 | c.5716+2T>C | splice_donor_variant, intron_variant | Intron 20 of 20 | NP_001308780.1 | |||
TRIP11 | XM_047431935.1 | c.4393+2T>C | splice_donor_variant, intron_variant | Intron 12 of 12 | XP_047287891.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TRIP11 | ENST00000267622.8 | c.5719+2T>C | splice_donor_variant, intron_variant | Intron 20 of 20 | 1 | NM_004239.4 | ENSP00000267622.4 | |||
TRIP11 | ENST00000554357.5 | c.4864+2T>C | splice_donor_variant, intron_variant | Intron 14 of 14 | 1 | ENSP00000451032.1 |
Frequencies
GnomAD3 genomes AF: 0.000131 AC: 20AN: 152190Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000812 AC: 20AN: 246318Hom.: 0 AF XY: 0.0000525 AC XY: 7AN XY: 133444
GnomAD4 exome AF: 0.000245 AC: 357AN: 1455286Hom.: 0 Cov.: 30 AF XY: 0.000220 AC XY: 159AN XY: 723668
GnomAD4 genome AF: 0.000131 AC: 20AN: 152190Hom.: 0 Cov.: 33 AF XY: 0.0000807 AC XY: 6AN XY: 74362
ClinVar
Submissions by phenotype
not specified Uncertain:2
Variant summary: TRIP11 c.5719+2T>C is located in a canonical splice-site and is predicted to affect mRNA splicing resulting in a significantly altered protein due to either exon skipping, shortening, or inclusion of intronic material. Several computational tools predict a significant impact on normal splicing: Three predict the variant abolishes a canonical 5' splicing donor site. However, these predictions have yet to be confirmed by functional studies. To our knowledge c.5719+2T>C has not been reported in the literature in individuals affected with TRIP11-Related Disorders and no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 30609409, 33578785). Four submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Variant classified as Uncertain Significance - Favor Pathogenic. The c.5719+2T>C variant in TRIP11 has not been reported in individuals with Achondrogenesis typ e 1A but has been identified in 0.016% (20/127174) of European chromosomes by gn omAD (http://gnomad.broadinstitute.org). This variant occurs within the canonica l splice site (+/- 1,2) and is predicted to cause altered splicing leading to an abnormal or absent protein; however, this splice variant disrupts the donor spl ice site of the penultimate exon and therefore may escape nonsense mediated deca y. Additionally, no loss of function variants downstream of this variant have be en reported in individuals with disease. In summary, while there is some suspici on for a pathogenic role, the clinical significance of the c.5719+2T>C variant i s uncertain. ACMG/AMP Criteria applied: PVS1_Moderate. -
not provided Uncertain:2
Canonical splice site variant predicted to result in a null allele in a gene for which loss-of-function is a known mechanism of disease; Has not been previously reported as pathogenic or benign in association with a TRIPP11-related disorder to our knowledge; This variant is associated with the following publications: (PMID: 30609409) -
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Achondrogenesis, type IA Uncertain:1
This sequence change affects a donor splice site in intron 20 of the TRIP11 gene. While this variant is not anticipated to result in nonsense mediated decay, it likely alters RNA splicing and results in a disrupted protein product. This variant is present in population databases (rs199736345, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with TRIP11-related conditions. ClinVar contains an entry for this variant (Variation ID: 505515). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at