Genetic Variant NM_018990.4:c.530G>A (chrX-129792415-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_018990.4(SASH3):c.530G>A(p.Arg177Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000219 in 1,098,005 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 11 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000022 ( 0 hom. 11 hem. )

Failed GnomAD Quality Control

Consequence

SASH3
NM_018990.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.78

Publications

2 publications found

Variant links:

Genes affected

SASH3 (HGNC:15975): (SAM and SH3 domain containing 3) The protein encoded by this gene contains a Src homology-3 (SH3) domain and a sterile alpha motif (SAM), both of which are found in proteins involved in cell signaling. This protein may function as a signaling adapter protein in lymphocytes.[provided by RefSeq, Sep 2009]

SASH3 Gene-Disease associations (from GenCC):

immunodeficiency 102
Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
combined immunodeficiency, X-linked
Inheritance: XL Classification: STRONG Submitted by: ClinGen

SASH3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High Hemizygotes in GnomAdExome4 at 11 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SASH3	NM_018990.4 link	c.530G>A	p.Arg177Gln	missense_variant	Exon 5 of 8	ENST00000356892.4	NP_061863.1	O75995
SASH3	XM_006724763.1 link	c.530G>A	p.Arg177Gln	missense_variant	Exon 5 of 7		XP_006724826.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SASH3	ENST00000356892.4 link	c.530G>A	p.Arg177Gln	missense_variant	Exon 5 of 8	1	NM_018990.4	ENSP00000349359.3		O75995

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

111720

Hom.:

Cov.:

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

GnomAD2 exomes

AF:

0.0000164

AC:

AN:

183373

AF XY:

0.0000295

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1098005

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

363361

show subpopulations

African (AFR)

AF:

0.0000379

AC:

AN:

26400

American (AMR)

AF:

0.00

AC:

AN:

35207

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19383

East Asian (EAS)

AF:

0.00

AC:

AN:

30206

South Asian (SAS)

AF:

0.000166

AC:

AN:

54144

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40526

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4137

European-Non Finnish (NFE)

AF:

0.0000154

AC:

AN:

841917

Other (OTH)

AF:

0.0000217

AC:

AN:

46085

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

111720

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33908

African (AFR)

AF:

0.00

AC:

AN:

30716

American (AMR)

AF:

0.00

AC:

AN:

10553

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2658

East Asian (EAS)

AF:

0.00

AC:

AN:

3532

South Asian (SAS)

AF:

0.00

AC:

AN:

2691

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6081

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53058

Other (OTH)

AF:

0.00

AC:

AN:

1509

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 18, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.530G>A (p.R177Q) alteration is located in exon 5 (coding exon 5) of the SASH3 gene. This alteration results from a G to A substitution at nucleotide position 530, causing the arginine (R) at amino acid position 177 to be replaced by a glutamine (Q). 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

0.11

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.52

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.82

FATHMM_MKL

Uncertain

0.90

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.52

MetaSVM

Benign

-1.2

MutationAssessor

Benign

1.7

PhyloP100

4.8

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-3.6

REVEL

Benign

0.20

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.0090

Polyphen

0.98

Vest4

0.40

MutPred

0.74

Loss of methylation at R177 (P = 0.0517);

MVP

0.39

MPC

1.2

ClinPred

0.70

GERP RS

4.6

Varity_R

0.58

gMVP

0.93

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.20

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.20

Position offset: 2

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

Publications

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NM_018990.4:c.530G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over