14-88385822-G-A

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_018418.5(SPATA7):​c.4G>A​(p.Asp2Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.381 in 1,604,026 control chromosomes in the GnomAD database, including 126,073 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D2H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.31 ( 9059 hom., cov: 33)
Exomes 𝑓: 0.39 ( 117014 hom. )

Consequence

SPATA7
NM_018418.5 missense

Scores

1
17

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.251

Publications

37 publications found
Variant links:
Genes affected
SPATA7 (HGNC:20423): (spermatogenesis associated 7) This gene, originally isolated from testis, is also expressed in retina. Mutations in this gene are associated with Leber congenital amaurosis and juvenile retinitis pigmentosa. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2010]
SPATA7 Gene-Disease associations (from GenCC):
  • Leber congenital amaurosis 3
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Leber congenital amaurosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • severe early-childhood-onset retinal dystrophy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=4.6560168E-4).
BP6
Variant 14-88385822-G-A is Benign according to our data. Variant chr14-88385822-G-A is described in ClinVar as [Benign]. Clinvar id is 95907.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.419 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPATA7NM_018418.5 linkc.4G>A p.Asp2Asn missense_variant Exon 1 of 12 ENST00000393545.9 NP_060888.2 Q9P0W8-1V9HVY9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPATA7ENST00000393545.9 linkc.4G>A p.Asp2Asn missense_variant Exon 1 of 12 1 NM_018418.5 ENSP00000377176.4 Q9P0W8-1

Frequencies

GnomAD3 genomes
AF:
0.307
AC:
46699
AN:
152020
Hom.:
9063
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0974
Gnomad AMI
AF:
0.334
Gnomad AMR
AF:
0.278
Gnomad ASJ
AF:
0.401
Gnomad EAS
AF:
0.0427
Gnomad SAS
AF:
0.260
Gnomad FIN
AF:
0.528
Gnomad MID
AF:
0.446
Gnomad NFE
AF:
0.423
Gnomad OTH
AF:
0.355
GnomAD2 exomes
AF:
0.329
AC:
76069
AN:
231254
AF XY:
0.337
show subpopulations
Gnomad AFR exome
AF:
0.0878
Gnomad AMR exome
AF:
0.217
Gnomad ASJ exome
AF:
0.400
Gnomad EAS exome
AF:
0.0341
Gnomad FIN exome
AF:
0.521
Gnomad NFE exome
AF:
0.422
Gnomad OTH exome
AF:
0.384
GnomAD4 exome
AF:
0.389
AC:
565174
AN:
1451888
Hom.:
117014
Cov.:
44
AF XY:
0.388
AC XY:
279820
AN XY:
721190
show subpopulations
African (AFR)
AF:
0.0816
AC:
2731
AN:
33448
American (AMR)
AF:
0.226
AC:
9850
AN:
43560
Ashkenazi Jewish (ASJ)
AF:
0.402
AC:
10403
AN:
25872
East Asian (EAS)
AF:
0.0420
AC:
1655
AN:
39394
South Asian (SAS)
AF:
0.267
AC:
22502
AN:
84432
European-Finnish (FIN)
AF:
0.518
AC:
26904
AN:
51958
Middle Eastern (MID)
AF:
0.435
AC:
2483
AN:
5708
European-Non Finnish (NFE)
AF:
0.422
AC:
467069
AN:
1107534
Other (OTH)
AF:
0.360
AC:
21577
AN:
59982
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
17418
34836
52255
69673
87091
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
13842
27684
41526
55368
69210
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.307
AC:
46675
AN:
152138
Hom.:
9059
Cov.:
33
AF XY:
0.311
AC XY:
23123
AN XY:
74366
show subpopulations
African (AFR)
AF:
0.0972
AC:
4039
AN:
41560
American (AMR)
AF:
0.278
AC:
4250
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.401
AC:
1389
AN:
3462
East Asian (EAS)
AF:
0.0424
AC:
219
AN:
5162
South Asian (SAS)
AF:
0.260
AC:
1255
AN:
4830
European-Finnish (FIN)
AF:
0.528
AC:
5582
AN:
10572
Middle Eastern (MID)
AF:
0.439
AC:
129
AN:
294
European-Non Finnish (NFE)
AF:
0.423
AC:
28770
AN:
67942
Other (OTH)
AF:
0.350
AC:
739
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
1508
3017
4525
6034
7542
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
460
920
1380
1840
2300
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.385
Hom.:
24799
Bravo
AF:
0.276
TwinsUK
AF:
0.417
AC:
1547
ALSPAC
AF:
0.426
AC:
1643
ESP6500AA
AF:
0.106
AC:
466
ESP6500EA
AF:
0.391
AC:
3358
ExAC
AF:
0.317
AC:
38241
Asia WGS
AF:
0.147
AC:
510
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Aug 20, 2013
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Leber congenital amaurosis 3 Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Retinal dystrophy Benign:1
Oct 01, 2023
Dept Of Ophthalmology, Nagoya University
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:research

- -

Retinitis pigmentosa Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Benign
0.0097
.;T;.;T;T;.
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.079
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.73
.;T;T;T;T;T
MetaRNN
Benign
0.00047
T;T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.90
L;L;L;.;.;L
PhyloP100
0.25
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.62
N;N;N;N;N;N
REVEL
Benign
0.055
Sift
Benign
0.058
T;T;T;D;D;T
Sift4G
Benign
0.21
T;T;T;.;T;T
Polyphen
0.015
B;P;B;.;.;.
Vest4
0.038
MPC
0.14
ClinPred
0.039
T
GERP RS
2.2
PromoterAI
-0.12
Neutral
Varity_R
0.059
gMVP
0.13
Mutation Taster
=98/2
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs4904448; hg19: chr14-88852166; COSMIC: COSV50416109; API