18-26039370-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001007559.3(SS18):ā€‹c.694A>Gā€‹(p.Met232Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,706 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

SS18
NM_001007559.3 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
SS18 (HGNC:11340): (SS18 subunit of BAF chromatin remodeling complex) Enables nuclear receptor coactivator activity. Involved in positive regulation of transcription by RNA polymerase II. Part of SWI/SNF complex. Implicated in synovial sarcoma. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SS18NM_001007559.3 linkuse as main transcriptc.694A>G p.Met232Val missense_variant 6/11 ENST00000415083.7 NP_001007560.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SS18ENST00000415083.7 linkuse as main transcriptc.694A>G p.Met232Val missense_variant 6/111 NM_001007559.3 ENSP00000414516 A1Q15532-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251342
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135828
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461706
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727166
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 13, 2022The c.694A>G (p.M232V) alteration is located in exon 6 (coding exon 6) of the SS18 gene. This alteration results from a A to G substitution at nucleotide position 694, causing the methionine (M) at amino acid position 232 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
23
DANN
Benign
0.95
DEOGEN2
Benign
0.29
T;T;.
Eigen
Benign
-0.061
Eigen_PC
Benign
0.096
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Benign
0.015
T
MetaRNN
Uncertain
0.44
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M;.;M
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-1.2
.;N;N
REVEL
Benign
0.11
Sift
Uncertain
0.0080
.;D;D
Sift4G
Benign
0.35
T;T;T
Polyphen
0.20
B;.;.
Vest4
0.75
MutPred
0.40
Gain of sheet (P = 0.0016);.;Gain of sheet (P = 0.0016);
MVP
0.22
MPC
0.21
ClinPred
0.46
T
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.52
gMVP
0.20

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: rs1294143883; hg19: chr18-23619334; COSMIC: COSV52264048; COSMIC: COSV52264048; API