rs763202805

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_Strong

The NM_003073.5(SMARCB1):​c.731A>T​(p.Gln244Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,780 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SMARCB1
NM_003073.5 missense

Scores

13
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.27
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SMARCB1. . Gene score misZ 3.6016 (greater than the threshold 3.09). Trascript score misZ 4.8554 (greater than threshold 3.09). GenCC has associacion of gene with schwannomatosis 1, familial multiple meningioma, rhabdoid tumor predisposition syndrome 1, complex neurodevelopmental disorder, intellectual disability, autosomal dominant 15, familial rhabdoid tumor, schwannomatosis, Coffin-Siris syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.975

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMARCB1NM_003073.5 linkuse as main transcriptc.731A>T p.Gln244Leu missense_variant 6/9 ENST00000644036.2 NP_003064.2
SMARCB1NM_001362877.2 linkuse as main transcriptc.785A>T p.Gln262Leu missense_variant 6/9 NP_001349806.1
SMARCB1NM_001317946.2 linkuse as main transcriptc.758A>T p.Gln253Leu missense_variant 6/9 NP_001304875.1
SMARCB1NM_001007468.3 linkuse as main transcriptc.704A>T p.Gln235Leu missense_variant 6/9 NP_001007469.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMARCB1ENST00000644036.2 linkuse as main transcriptc.731A>T p.Gln244Leu missense_variant 6/9 NM_003073.5 ENSP00000494049 A1Q12824-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251418
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461780
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 31, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
.;D;D;.
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Uncertain
0.97
D
M_CAP
Pathogenic
0.37
D
MetaRNN
Pathogenic
0.98
D;D;D;D
MetaSVM
Pathogenic
0.89
D
MutationAssessor
Pathogenic
3.9
.;H;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-6.1
D;.;D;N
REVEL
Pathogenic
0.94
Sift
Uncertain
0.0010
D;.;D;T
Sift4G
Uncertain
0.013
D;.;D;.
Polyphen
0.87, 0.98
.;P;D;.
Vest4
0.94
MutPred
0.92
.;.;Loss of disorder (P = 0.0333);.;
MVP
0.99
MPC
2.5
ClinPred
1.0
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.94
gMVP
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs763202805; hg19: chr22-24159059; API