rs371128729

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_006765.4(TUSC3):​c.1029-8T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000621 in 1,480,316 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00021 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

TUSC3
NM_006765.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.004811
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 2.88
Variant links:
Genes affected
TUSC3 (HGNC:30242): (tumor suppressor candidate 3) This gene encodes a protein that has been associated with several biological functions including cellular magnesium uptake, protein glycosylation and embryonic development. This protein localizes to the endoplasmic reticulum and acts as a component of the oligosaccharyl transferase complex which is responsible for N-linked protein glycosylation. This gene is a candidate tumor suppressor gene. Homozygous mutations in this gene are associated with autosomal recessive nonsyndromic mental retardation-7 and in the proliferation and invasiveness of several cancers including metastatic pancreatic cancer, ovarian cancer and glioblastoma multiform. [provided by RefSeq, Oct 2017]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.36).
BP6
Variant 8-15757783-T-C is Benign according to our data. Variant chr8-15757783-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 437172.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TUSC3NM_006765.4 linkuse as main transcriptc.1029-8T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000503731.6 NP_006756.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TUSC3ENST00000503731.6 linkuse as main transcriptc.1029-8T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_006765.4 ENSP00000424544 A1Q13454-1

Frequencies

GnomAD3 genomes
AF:
0.000210
AC:
32
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000362
AC:
9
AN:
248802
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
134704
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000270
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000452
AC:
60
AN:
1328000
Hom.:
0
Cov.:
25
AF XY:
0.0000330
AC XY:
22
AN XY:
666934
show subpopulations
Gnomad4 AFR exome
AF:
0.000490
Gnomad4 AMR exome
AF:
0.0000449
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.0000358
GnomAD4 genome
AF:
0.000210
AC:
32
AN:
152316
Hom.:
0
Cov.:
32
AF XY:
0.000255
AC XY:
19
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.000385
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000116
Hom.:
0
Bravo
AF:
0.000196
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoNov 24, 2015- -
Intellectual disability, autosomal recessive 7 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 12, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.36
CADD
Benign
15
DANN
Benign
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0048
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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: rs371128729; hg19: chr8-15615292; API