Variant 17-32995715-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_173847.5(SPACA3):c.341A>G(p.Asp114Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,620 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SPACA3
NM_173847.5 missense, splice_region

Scores

Splicing: ADA: 0.02200

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54

Variant links:

Genes affected

SPACA3 (HGNC:16260): (sperm acrosome associated 3) The protein encoded by this gene is a sperm surface protein that may be involved in adhesion to the egg prior to fertilization. While the encoded protein has significant similarity to lysozyme at the amino acid level, it has no detectable bacteriocidal activity. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2015]

SPACA3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPACA3	NM_173847.5 linkuse as main transcript	c.341A>G	p.Asp114Gly	missense_variant, splice_region_variant	2/5	ENST00000269053.8
SPACA3	NM_001317225.2 linkuse as main transcript	c.43A>G	p.Thr15Ala	missense_variant, splice_region_variant	2/5
SPACA3	NM_001317226.2 linkuse as main transcript	c.35-1128A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPACA3	ENST00000269053.8 linkuse as main transcript	c.341A>G	p.Asp114Gly	missense_variant, splice_region_variant	2/5	1	NM_173847.5	A2	Q8IXA5-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000806

AC:

AN:

248070

Hom.:

AF XY:

0.00000745

AC XY:

AN XY:

134140

show subpopulations

Gnomad AFR exome

AF:

0.000123

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:

6.86e-7

AC:

AN:

1458620

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724956

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000113

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000824

AC:

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 submitter

clinical testing

Ambry Genetics

Mar 01, 2024

The c.341A>G (p.D114G) alteration is located in exon 2 (coding exon 2) of the SPACA3 gene. This alteration results from a A to G substitution at nucleotide position 341, causing the aspartic acid (D) at amino acid position 114 to be replaced by a glycine (G). 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

0.65

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.13

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Uncertain

0.27

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.89

D;D

M_CAP

Uncertain

0.25

MetaRNN

Uncertain

0.73

D;D

MetaSVM

Uncertain

-0.19

MutationTaster

Benign

0.64

D;D;D

PrimateAI

Benign

0.43

Sift4G

Uncertain

0.017

D;D

Polyphen

0.98

.;D

Vest4

0.55

MVP

0.73

MPC

0.42

ClinPred

0.93

GERP RS

3.9

Varity_R

0.90

gMVP

0.74

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.022

dbscSNV1_RF

Benign

0.22

SpliceAI score (max)

0.18

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