rs35070121

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The ENST00000491967.2(SMARCB1):​n.774C>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000545 in 1,443,794 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00036 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00057 ( 8 hom. )

Consequence

SMARCB1
ENST00000491967.2 non_coding_transcript_exon

Scores

3

Clinical Significance

Likely benign criteria provided, single submitter B:1O:1

Conservation

PhyloP100: -1.74

Publications

1 publications found
Variant links:
Genes affected
SMARCB1 (HGNC:11103): (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily b, member 1) The protein encoded by this gene is part of a complex that relieves repressive chromatin structures, allowing the transcriptional machinery to access its targets more effectively. The encoded nuclear protein may also bind to and enhance the DNA joining activity of HIV-1 integrase. This gene has been found to be a tumor suppressor, and mutations in it have been associated with malignant rhabdoid tumors. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2015]
SMARCB1 Gene-Disease associations (from GenCC):
  • Coffin-Siris syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • intellectual disability, autosomal dominant 15
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • rhabdoid tumor predisposition syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
  • SMARCB1-related schwannomatosis
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics
  • familial multiple meningioma
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial rhabdoid tumor
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • schwannomatosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 22-23801192-C-A is Benign according to our data. Variant chr22-23801192-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 133389.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 55 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCB1NM_003073.5 linkc.500+111C>A intron_variant Intron 4 of 8 ENST00000644036.2 NP_003064.2 Q12824-1
SMARCB1NM_001362877.2 linkc.554+57C>A intron_variant Intron 4 of 8 NP_001349806.1
SMARCB1NM_001317946.2 linkc.527+57C>A intron_variant Intron 4 of 8 NP_001304875.1 G5E975Q9H836
SMARCB1NM_001007468.3 linkc.473+111C>A intron_variant Intron 4 of 8 NP_001007469.1 Q12824-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCB1ENST00000644036.2 linkc.500+111C>A intron_variant Intron 4 of 8 NM_003073.5 ENSP00000494049.2 Q12824-1

Frequencies

GnomAD3 genomes
AF:
0.000368
AC:
56
AN:
152238
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00374
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00352
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000954
AC:
194
AN:
203380
AF XY:
0.00123
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000342
Gnomad ASJ exome
AF:
0.00219
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000483
Gnomad OTH exome
AF:
0.000943
GnomAD4 exome
AF:
0.000567
AC:
732
AN:
1291438
Hom.:
8
Cov.:
19
AF XY:
0.000743
AC XY:
482
AN XY:
648534
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29922
American (AMR)
AF:
0.00
AC:
0
AN:
40388
Ashkenazi Jewish (ASJ)
AF:
0.00239
AC:
59
AN:
24716
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37764
South Asian (SAS)
AF:
0.00457
AC:
369
AN:
80670
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51748
Middle Eastern (MID)
AF:
0.00293
AC:
16
AN:
5466
European-Non Finnish (NFE)
AF:
0.000252
AC:
243
AN:
966022
Other (OTH)
AF:
0.000822
AC:
45
AN:
54742
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
47
94
142
189
236
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000361
AC:
55
AN:
152356
Hom.:
0
Cov.:
32
AF XY:
0.000376
AC XY:
28
AN XY:
74500
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41586
American (AMR)
AF:
0.0000653
AC:
1
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00374
AC:
13
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00332
AC:
16
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000309
AC:
21
AN:
68038
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000769
Hom.:
0
Bravo
AF:
0.000310
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Nov 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SMARCB1: BS1 -

not specified Other:1
Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.17
DANN
Benign
0.55
PhyloP100
-1.7
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs35070121; hg19: chr22-24143379; COSMIC: COSV104371214; API