Genetic Variant SPATA3:p.Arg65Gln (chr2-230996427-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_139073.5(SPATA3):c.194G>A(p.Arg65Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,552,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R65W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

SPATA3
NM_139073.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.30

Publications

0 publications found

Variant links:

Genes affected

SPATA3 (HGNC:17884): (spermatogenesis associated 3) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

SPATA3 Gene-Disease associations (from GenCC):

male infertility with azoospermia or oligozoospermia due to single gene mutation
Inheritance: AR Classification: MODERATE Submitted by: King Faisal Specialist Hospital and Research Center

SPATA3 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.023117512).

BP6

Variant 2-230996427-G-A is Benign according to our data. Variant chr2-230996427-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2212677.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPATA3	NM_139073.5 link	c.194G>A	p.Arg65Gln	missense_variant	Exon 1 of 5	ENST00000433428.7	NP_620712.2	Q8NHX4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPATA3	ENST00000433428.7 link	c.194G>A	p.Arg65Gln	missense_variant	Exon 1 of 5	1	NM_139073.5	ENSP00000403804.2		Q8NHX4

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

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

GnomAD2 exomes

AF:

0.0000315

AC:

AN:

158974

AF XY:

0.0000239

show subpopulations

Gnomad AFR exome

AF:

0.000120

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000234

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000323

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1400022

Hom.:

Cov.:

AF XY:

0.0000188

AC XY:

AN XY:

690482

show subpopulations

African (AFR)

AF:

0.0000316

AC:

AN:

31600

American (AMR)

AF:

0.00

AC:

AN:

35708

Ashkenazi Jewish (ASJ)

AF:

0.000159

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49586

Middle Eastern (MID)

AF:

0.000175

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.0000139

AC:

AN:

1079082

Other (OTH)

AF:

0.0000172

AC:

AN:

58192

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152034

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74264

show subpopulations

African (AFR)

AF:

0.0000725

AC:

AN:

41394

American (AMR)

AF:

0.00

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68000

Other (OTH)

AF:

0.00

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.0000491

ESP6500AA

AF:

0.000723

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000375

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Dec 05, 2022

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.66

CADD

Benign

0.011

(source)

DANN

Benign

0.85

DEOGEN2

Benign

0.00011

T;T;T;.;T;.

Eigen

Benign

-2.1

Eigen_PC

Benign

-2.1

FATHMM_MKL

Benign

0.00044

LIST_S2

Benign

0.40

.;.;.;T;T;T

M_CAP

Benign

0.0014

MetaRNN

Benign

0.023

T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.46

N;N;N;.;N;.

PhyloP100

-1.3

PrimateAI

Benign

0.23

PROVEAN

Benign

1.4

N;N;N;.;N;N

REVEL

Benign

0.0050

Sift

Benign

0.56

T;T;T;.;T;.

Sift4G

Benign

0.74

T;T;T;T;T;T

Vest4

0.064

MVP

0.055

ClinPred

0.013

GERP RS

-5.7

PromoterAI

0.0031

Neutral

(source)

Varity_R

0.017

gMVP

0.027

Mutation Taster

=100/0

polymorphism

(source)

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

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2-230996427-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over