Variant 17-50547221-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022827.4(SPATA20):c.13C>T(p.Arg5Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000413 in 1,423,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict 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. R5P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00042 ( 0 hom. )

Consequence

SPATA20
NM_022827.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0150

Variant links:

Genes affected

SPATA20 (HGNC:26125): (spermatogenesis associated 20) Predicted to be involved in carbohydrate metabolic process; cell differentiation; and spermatogenesis. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

SPATA20 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.027523607).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPATA20	NM_022827.4 linkuse as main transcript	c.13C>T	p.Arg5Trp	missense_variant	1/17	ENST00000006658.11
SPATA20	NM_001258372.2 linkuse as main transcript	c.13C>T	p.Arg5Trp	missense_variant	1/16
SPATA20	NM_001258373.2 linkuse as main transcript	c.-223C>T		5_prime_UTR_variant	1/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPATA20	ENST00000006658.11 linkuse as main transcript	c.13C>T	p.Arg5Trp	missense_variant	1/17	1	NM_022827.4		Q8TB22-2

Frequencies

GnomAD3 genomes

AF:

0.000355

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.00160

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000471

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000299

AC:

AN:

36816

Hom.:

AF XY:

0.000226

AC XY:

AN XY:

22168

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00123

Gnomad NFE exome

AF:

0.000586

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000420

AC:

534

AN:

1271790

Hom.:

Cov.:

AF XY:

0.000396

AC XY:

247

AN XY:

624090

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00112

Gnomad4 NFE exome

AF:

0.000461

Gnomad4 OTH exome

AF:

0.000419

GnomAD4 genome

AF:

0.000355

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00160

Gnomad4 NFE

AF:

0.000471

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000318

Hom.:

Bravo

AF:

0.000272

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

Oct 26, 2021

The c.13C>T (p.R5W) alteration is located in exon 1 (coding exon 1) of the SPATA20 gene. This alteration results from a C to T substitution at nucleotide position 13, causing the arginine (R) at amino acid position 5 to be replaced by a tryptophan (W). 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

0.57

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.50

Cadd

Benign

Dann

Benign

0.90

Eigen

Benign

-0.98

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.040

LIST_S2

Benign

0.81

T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.028

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;N

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.45

N;N

REVEL

Benign

0.039

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.0010

B;B

Vest4

0.19

MutPred

0.36

Loss of disorder (P = 2e-04);Loss of disorder (P = 2e-04);

MVP

0.23

MPC

0.68

ClinPred

0.24

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.092

gMVP

0.55

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