Genetic Variant SPATA3:p.Gly127Glu (chr2-231000444-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_139073.5(SPATA3):c.380G>A(p.Gly127Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000665 in 1,549,682 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. G127R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

SPATA3
NM_139073.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.84

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19013095).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPATA3	NM_139073.5 link	c.380G>A	p.Gly127Glu	missense_variant	Exon 2 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.380G>A	p.Gly127Glu	missense_variant	Exon 2 of 5	1	NM_139073.5	ENSP00000403804.2		Q8NHX4

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000893

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:

0.00

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000707

AC:

AN:

155614

AF XY:

0.0000485

show subpopulations

Gnomad AFR exome

AF:

0.00127

Gnomad AMR exome

AF:

0.0000408

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:

0.0000458

AC:

AN:

1397434

Hom.:

Cov.:

AF XY:

0.0000406

AC XY:

AN XY:

689040

show subpopulations

African (AFR)

AF:

0.00155

AC:

AN:

31540

American (AMR)

AF:

0.0000281

AC:

AN:

35548

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25142

East Asian (EAS)

AF:

0.00

AC:

AN:

35630

South Asian (SAS)

AF:

0.00

AC:

AN:

79110

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49230

Middle Eastern (MID)

AF:

0.000703

AC:

AN:

5692

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1077624

Other (OTH)

AF:

0.000173

AC:

AN:

57918

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000256

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74430

show subpopulations

African (AFR)

AF:

0.000891

AC:

AN:

41540

American (AMR)

AF:

0.0000654

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000263

Hom.:

Bravo

AF:

0.000348

ExAC

AF:

0.0000748

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 17, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.380G>A (p.G127E) alteration is located in exon 2 (coding exon 2) of the SPATA3 gene. This alteration results from a G to A substitution at nucleotide position 380, causing the glycine (G) at amino acid position 127 to be replaced by a glutamic acid (E). 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

Pathogenic

0.88

BayesDel_addAF

Uncertain

0.089

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.055

.;T;T;T;.;T

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.79

T;.;.;.;T;T

M_CAP

Benign

0.0079

MetaRNN

Benign

0.19

T;T;T;T;T;T

MetaSVM

Benign

-0.55

MutationAssessor

Benign

1.0

.;L;L;L;.;L

PhyloP100

3.8

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-4.8

.;D;D;D;.;D

REVEL

Uncertain

0.38

Sift

Pathogenic

0.0

.;D;D;D;.;D

Sift4G

Pathogenic

0.0

.;D;D;D;D;D

Vest4

0.93, 0.91

MVP

0.14

ClinPred

0.71

GERP RS

4.3

Varity_R

0.78

gMVP

0.086

Mutation Taster

=89/11

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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2-231000444-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