Genetic Variant SSX7:p.Pro145Arg (chrX-52648293-G-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_173358.2(SSX7):c.434C>G(p.Pro145Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000152 in 1,209,686 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 49 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P145Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00083 ( 0 hom., 25 hem., cov: 24)

Exomes 𝑓: 0.000083 ( 0 hom. 24 hem. )

Consequence

SSX7
NM_173358.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.562

Variant links:

Genes affected

SSX7 (HGNC:19653): (SSX family member 7) The product of this gene belongs to the family of highly homologous synovial sarcoma X (SSX) breakpoint proteins. These proteins may function as transcriptional repressors. They are also capable of eliciting spontaneously humoral and cellular immune responses in cancer patients, and are potentially useful targets in cancer vaccine-based immunotherapy. SSX1, SSX2 and SSX4 genes have been involved in the t(X;18) translocation characteristically found in all synovial sarcomas. This gene appears not to be involved in this type of chromosome translocation. [provided by RefSeq, Jul 2008]

SSX7 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007223755).

BS2

High Hemizygotes in GnomAd4 at 25 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SSX7	NM_173358.2 link	c.434C>G	p.Pro145Arg	missense_variant	Exon 6 of 8	ENST00000298181.6	NP_775494.1	Q7RTT5A0A024R019

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SSX7	ENST00000298181.6 link	c.434C>G	p.Pro145Arg	missense_variant	Exon 6 of 8	5	NM_173358.2	ENSP00000298181.5		Q7RTT5

Frequencies

GnomAD3 genomes

AF:

0.000830

AC:

AN:

112019

Hom.:

Cov.:

AF XY:

0.000731

AC XY:

AN XY:

34189

show subpopulations

Gnomad AFR

AF:

0.00286

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000379

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:

0.00

Gnomad OTH

AF:

0.000658

GnomAD3 exomes

AF:

0.000225

AC:

AN:

182210

Hom.:

AF XY:

0.000135

AC XY:

AN XY:

66682

show subpopulations

Gnomad AFR exome

AF:

0.00313

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:

0.0000829

AC:

AN:

1097614

Hom.:

Cov.:

AF XY:

0.0000661

AC XY:

AN XY:

363000

show subpopulations

Gnomad4 AFR exome

AF:

0.00315

Gnomad4 AMR exome

AF:

0.0000569

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:

0.00

Gnomad4 OTH exome

AF:

0.000130

GnomAD4 genome

AF:

0.000830

AC:

AN:

112072

Hom.:

Cov.:

AF XY:

0.000730

AC XY:

AN XY:

34252

show subpopulations

Gnomad4 AFR

AF:

0.00285

Gnomad4 AMR

AF:

0.000379

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000649

Alfa

AF:

0.0000792

Hom.:

Bravo

AF:

0.00124

ESP6500AA

AF:

0.00261

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000198

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 07, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.434C>G (p.P145R) alteration is located in exon 6 (coding exon 5) of the SSX7 gene. This alteration results from a C to G substitution at nucleotide position 434, causing the proline (P) at amino acid position 145 to be replaced by an arginine (R). 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

0.080

BayesDel_addAF

Benign

-0.85

BayesDel_noAF

Benign

-1.0

CADD

Benign

1.1

DANN

Uncertain

0.99

DEOGEN2

Benign

0.048

FATHMM_MKL

Benign

0.0038

LIST_S2

Benign

0.56

M_CAP

Benign

0.00060

MetaRNN

Benign

0.0072

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

PROVEAN

Uncertain

-3.4

REVEL

Benign

0.025

Sift

Benign

0.034

Sift4G

Uncertain

0.0060

Polyphen

0.78

Vest4

0.092

MVP

0.014

MPC

0.012

ClinPred

0.14

GERP RS

0.11

Varity_R

0.17

gMVP

0.018

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over