rs2274955

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PVS1_ModerateBP6_Very_StrongBA1

The NM_015602.4(TOR1AIP1):​c.964+1G>A variant causes a splice donor change. The variant allele was found at a frequency of 0.00233 in 1,612,154 control chromosomes in the GnomAD database, including 127 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 9 hom., cov: 32)
Exomes 𝑓: 0.0023 ( 118 hom. )

Consequence

TOR1AIP1
NM_015602.4 splice_donor

Scores

3
2
2
Splicing: ADA: 0.9999
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 4.35
Variant links:
Genes affected
TOR1AIP1 (HGNC:29456): (torsin 1A interacting protein 1) This gene encodes a type 2 integral membrane protein that binds A- and B-type lamins. The encoded protein localizes to the inner nuclear membrane and may be involved in maintaining the attachment of the nuclear membrane to the nuclear lamina during cell division. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.03196347 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
BP6
Variant 1-179914055-G-A is Benign according to our data. Variant chr1-179914055-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 476292.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-179914055-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0581 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TOR1AIP1NM_015602.4 linkuse as main transcriptc.964+1G>A splice_donor_variant ENST00000606911.7 NP_056417.2
TOR1AIP1NM_001267578.2 linkuse as main transcriptc.967+1G>A splice_donor_variant NP_001254507.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TOR1AIP1ENST00000606911.7 linkuse as main transcriptc.964+1G>A splice_donor_variant 1 NM_015602.4 ENSP00000476687 P4Q5JTV8-1

Frequencies

GnomAD3 genomes
AF:
0.00250
AC:
381
AN:
152168
Hom.:
9
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0637
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.00560
AC:
1400
AN:
250088
Hom.:
39
AF XY:
0.00502
AC XY:
678
AN XY:
135174
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00327
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0674
Gnomad SAS exome
AF:
0.00116
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000883
Gnomad OTH exome
AF:
0.00115
GnomAD4 exome
AF:
0.00232
AC:
3382
AN:
1459868
Hom.:
118
Cov.:
30
AF XY:
0.00231
AC XY:
1680
AN XY:
726278
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00310
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0709
Gnomad4 SAS exome
AF:
0.00178
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000666
Gnomad4 OTH exome
AF:
0.00343
GnomAD4 genome
AF:
0.00251
AC:
382
AN:
152286
Hom.:
9
Cov.:
32
AF XY:
0.00305
AC XY:
227
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0638
Gnomad4 SAS
AF:
0.00290
Gnomad4 FIN
AF:
0.0000944
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.00279
Hom.:
22
Bravo
AF:
0.00323
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00529
AC:
642
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2Y Benign:3
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsAug 20, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxAug 25, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.019
T
BayesDel_noAF
Pathogenic
0.25
CADD
Pathogenic
27
DANN
Uncertain
0.99
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Uncertain
0.92
D
MutationTaster
Benign
1.0
D;D
GERP RS
5.4

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
0.93
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.93
Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2274955; hg19: chr1-179883190; COSMIC: COSV54871203; COSMIC: COSV54871203; API