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GeneBe

17-58307630-C-T

Variant summary

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

The NM_004758.4(TSPOAP1):c.4964G>A(p.Arg1655Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00136 in 1,613,954 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00095 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0014 ( 0 hom. )

Consequence

TSPOAP1
NM_004758.4 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -0.270
Variant links:
Genes affected
TSPOAP1 (HGNC:16831): (TSPO associated protein 1) Enables benzodiazepine receptor binding activity. Predicted to be involved in regulation of presynaptic cytosolic calcium ion concentration. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

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=0.010245562).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSPOAP1NM_004758.4 linkuse as main transcriptc.4964G>A p.Arg1655Gln missense_variant 24/32 ENST00000343736.9
TSPOAP1NM_001261835.2 linkuse as main transcriptc.4964G>A p.Arg1655Gln missense_variant 24/32
TSPOAP1NM_024418.3 linkuse as main transcriptc.4784G>A p.Arg1595Gln missense_variant 23/31

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSPOAP1ENST00000343736.9 linkuse as main transcriptc.4964G>A p.Arg1655Gln missense_variant 24/321 NM_004758.4 P2O95153-1

Frequencies

GnomAD3 genomes
AF:
0.000953
AC:
145
AN:
152230
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00169
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00140
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000918
AC:
230
AN:
250680
Hom.:
0
AF XY:
0.000996
AC XY:
135
AN XY:
135592
show subpopulations
Gnomad AFR exome
AF:
0.000556
Gnomad AMR exome
AF:
0.000724
Gnomad ASJ exome
AF:
0.000498
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00157
Gnomad NFE exome
AF:
0.00132
Gnomad OTH exome
AF:
0.000980
GnomAD4 exome
AF:
0.00140
AC:
2048
AN:
1461606
Hom.:
0
Cov.:
32
AF XY:
0.00137
AC XY:
997
AN XY:
727058
show subpopulations
Gnomad4 AFR exome
AF:
0.000388
Gnomad4 AMR exome
AF:
0.000514
Gnomad4 ASJ exome
AF:
0.000574
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00124
Gnomad4 NFE exome
AF:
0.00168
Gnomad4 OTH exome
AF:
0.000878
GnomAD4 genome
AF:
0.000952
AC:
145
AN:
152348
Hom.:
0
Cov.:
33
AF XY:
0.000859
AC XY:
64
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.000529
Gnomad4 AMR
AF:
0.000588
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00169
Gnomad4 NFE
AF:
0.00140
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00125
Hom.:
0
Bravo
AF:
0.000884
TwinsUK
AF:
0.00135
AC:
5
ALSPAC
AF:
0.00156
AC:
6
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00174
AC:
15
ExAC
AF:
0.000766
AC:
93
EpiCase
AF:
0.00142
EpiControl
AF:
0.00113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 09, 2021The c.4964G>A (p.R1655Q) alteration is located in exon 24 (coding exon 24) of the TSPOAP1 gene. This alteration results from a G to A substitution at nucleotide position 4964, causing the arginine (R) at amino acid position 1655 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
TSPOAP1-related Dystonia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingNew York Genome CenterMay 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.67
Cadd
Benign
15
Dann
Uncertain
0.99
Eigen
Benign
-0.90
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.54
T;T;T
M_CAP
Benign
0.0040
T
MetaRNN
Benign
0.010
T;T;T
MetaSVM
Benign
-0.92
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-1.0
N;.;N
REVEL
Benign
0.044
Sift
Benign
0.45
T;.;T
Sift4G
Uncertain
0.054
T;.;T
Polyphen
0.10
B;.;B
Vest4
0.15
MVP
0.088
MPC
0.27
ClinPred
0.025
T
GERP RS
-0.89
Varity_R
0.036
gMVP
0.33

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs147089668; hg19: chr17-56384991; COSMIC: COSV52104085; COSMIC: COSV52104085; API