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GeneBe

18-26087561-T-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001007559.3(SS18):c.86A>G(p.Asn29Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000145 in 1,588,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

SS18
NM_001007559.3 missense

Scores

1
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.63
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2566689).
BS2
High AC in GnomAd at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SS18NM_001007559.3 linkuse as main transcriptc.86A>G p.Asn29Ser missense_variant 2/11 ENST00000415083.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SS18ENST00000415083.7 linkuse as main transcriptc.86A>G p.Asn29Ser missense_variant 2/111 NM_001007559.3 A1Q15532-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000371
AC:
9
AN:
242656
Hom.:
0
AF XY:
0.0000305
AC XY:
4
AN XY:
131088
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:
0.0000808
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000125
AC:
18
AN:
1436616
Hom.:
0
Cov.:
25
AF XY:
0.0000112
AC XY:
8
AN XY:
715606
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:
0.0000155
Gnomad4 OTH exome
AF:
0.0000168
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000653
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000577
AC:
7

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 GeneticsJun 24, 2022The c.86A>G (p.N29S) alteration is located in exon 2 (coding exon 2) of the SS18 gene. This alteration results from a A to G substitution at nucleotide position 86, causing the asparagine (N) at amino acid position 29 to be replaced by a serine (S). 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
0.21
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.46
Cadd
Uncertain
24
Dann
Benign
0.96
DEOGEN2
Benign
0.11
T;T;.;T;T;.
Eigen
Benign
0.084
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D;D;D;D;D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.26
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.61
N;.;N;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.77
T
REVEL
Benign
0.18
Sift4G
Benign
0.37
T;T;T;.;.;T
Polyphen
0.088
B;.;.;.;.;.
Vest4
0.53
MutPred
0.30
Gain of sheet (P = 0.0477);.;Gain of sheet (P = 0.0477);.;.;.;
MVP
0.22
MPC
0.69
ClinPred
0.29
T
GERP RS
6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.26

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: rs767203407; hg19: chr18-23667525; COSMIC: COSV105869850; COSMIC: COSV105869850; API