4-52076798-C-T

Variant summary

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

The NM_145263.4(SPATA18):​c.778C>T​(p.Pro260Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,613,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

SPATA18
NM_145263.4 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.16
Variant links:
Genes affected
SPATA18 (HGNC:29579): (spermatogenesis associated 18) This gene encodes a p53-inducible protein that is able to induce lysosome-like organelles within mitochondria that eliminate oxidized mitochondrial proteins, thereby contributing to mitochondrial quality control. Dysregulation of mitochondrial quality control is associated with cancer and degenerative diseases. The encoded protein mediates accumulation of the lysosome-like mitochondrial organelles through interaction with B cell lymphoma 2 interacting protein 3 and B cell lymphoma 2 interacting protein 3 like at the outer mitochondrial membrane, which allows translocation of lysosomal proteins to the mitochondrial matrix from the cytosol. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

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=0.0305745).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPATA18NM_145263.4 linkuse as main transcriptc.778C>T p.Pro260Ser missense_variant 7/13 ENST00000295213.9 NP_660306.1 Q8TC71-1A0A140VKF4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPATA18ENST00000295213.9 linkuse as main transcriptc.778C>T p.Pro260Ser missense_variant 7/131 NM_145263.4 ENSP00000295213.4 Q8TC71-1

Frequencies

GnomAD3 genomes
AF:
0.000388
AC:
59
AN:
152254
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00137
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000925
AC:
23
AN:
248538
Hom.:
0
AF XY:
0.0000520
AC XY:
7
AN XY:
134594
show subpopulations
Gnomad AFR exome
AF:
0.00112
Gnomad AMR exome
AF:
0.000145
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:
0.0000452
AC:
66
AN:
1461572
Hom.:
0
Cov.:
31
AF XY:
0.0000371
AC XY:
27
AN XY:
727048
show subpopulations
Gnomad4 AFR exome
AF:
0.00161
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000387
AC:
59
AN:
152372
Hom.:
0
Cov.:
31
AF XY:
0.000322
AC XY:
24
AN XY:
74516
show subpopulations
Gnomad4 AFR
AF:
0.00137
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000944
Hom.:
0
Bravo
AF:
0.000419
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000124
AC:
15
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

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 submitterclinical testingAmbry GeneticsOct 07, 2024The c.778C>T (p.P260S) alteration is located in exon 7 (coding exon 7) of the SPATA18 gene. This alteration results from a C to T substitution at nucleotide position 778, causing the proline (P) at amino acid position 260 to be replaced by a serine (S). 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
Benign
0.099
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.16
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;.
Eigen
Benign
0.11
Eigen_PC
Benign
0.064
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.77
T;T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.031
T;T
MetaSVM
Uncertain
0.32
D
MutationAssessor
Uncertain
2.6
M;.
PrimateAI
Benign
0.44
T
PROVEAN
Pathogenic
-4.6
D;D
REVEL
Benign
0.11
Sift
Benign
0.042
D;D
Sift4G
Benign
0.066
T;T
Polyphen
0.98
D;D
Vest4
0.20
MVP
0.52
MPC
0.40
ClinPred
0.13
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.33
gMVP
0.40

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: rs73815293; hg19: chr4-52942964; API