chr14-88385787-G-T

Variant summary

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

The NM_018418.5(SPATA7):​c.-32G>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000543 in 1,595,830 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00046 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00055 ( 1 hom. )

Consequence

SPATA7
NM_018418.5 5_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 0.424
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]

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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 (BayesDel_noAF=-0.78).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPATA7NM_018418.5 linkuse as main transcriptc.-32G>T 5_prime_UTR_variant 1/12 ENST00000393545.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPATA7ENST00000393545.9 linkuse as main transcriptc.-32G>T 5_prime_UTR_variant 1/121 NM_018418.5 P2Q9P0W8-1

Frequencies

GnomAD3 genomes
AF:
0.000460
AC:
70
AN:
152234
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000608
AC:
139
AN:
228770
Hom.:
0
AF XY:
0.000647
AC XY:
80
AN XY:
123700
show subpopulations
Gnomad AFR exome
AF:
0.0000705
Gnomad AMR exome
AF:
0.0000925
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000105
Gnomad NFE exome
AF:
0.00125
Gnomad OTH exome
AF:
0.000720
GnomAD4 exome
AF:
0.000551
AC:
796
AN:
1443478
Hom.:
1
Cov.:
30
AF XY:
0.000505
AC XY:
362
AN XY:
717258
show subpopulations
Gnomad4 AFR exome
AF:
0.0000901
Gnomad4 AMR exome
AF:
0.000116
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000174
Gnomad4 NFE exome
AF:
0.000667
Gnomad4 OTH exome
AF:
0.000753
GnomAD4 genome
AF:
0.000459
AC:
70
AN:
152352
Hom.:
0
Cov.:
34
AF XY:
0.000362
AC XY:
27
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.0000721
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000359
Hom.:
0
Bravo
AF:
0.000434

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Leber congenital amaurosis 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Retinitis pigmentosa Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
11
DANN
Benign
0.65

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.

Other links and lift over

dbSNP: rs200780988; hg19: chr14-88852131; API