chr12-54963850-C-A

Variant summary

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

The NM_001136030.3(TESPA1):​c.547G>T​(p.Ala183Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TESPA1
NM_001136030.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.426
Variant links:
Genes affected
TESPA1 (HGNC:29109): (thymocyte expressed, positive selection associated 1) Predicted to enable phospholipase binding activity. Predicted to be involved in several processes, including COP9 signalosome assembly; positive regulation of T cell differentiation in thymus; and positive regulation of T cell receptor signaling pathway. Predicted to act upstream of or within TCR signalosome assembly. Part of COP9 signalosome. [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=0.048734188).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TESPA1NM_001136030.3 linkuse as main transcriptc.547G>T p.Ala183Ser missense_variant 8/11 ENST00000449076.6 NP_001129502.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TESPA1ENST00000449076.6 linkuse as main transcriptc.547G>T p.Ala183Ser missense_variant 8/112 NM_001136030.3 ENSP00000400892 P1A2RU30-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000361
AC:
9
AN:
249198
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135188
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000501
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:
0.00000479
AC:
7
AN:
1461688
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000151
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000414
AC:
5

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 GeneticsApr 09, 2024The c.547G>T (p.A183S) alteration is located in exon 8 (coding exon 7) of the TESPA1 gene. This alteration results from a G to T substitution at nucleotide position 547, causing the alanine (A) at amino acid position 183 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
0.098
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
18
DANN
Benign
0.92
DEOGEN2
Benign
0.0098
.;.;T;T;.;.;.;.
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.74
.;.;.;T;T;T;T;T
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.049
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.77
.;.;N;N;.;.;.;.
MutationTaster
Benign
0.59
N;N;N;N;N
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.85
N;N;N;N;N;N;N;N
REVEL
Benign
0.031
Sift
Benign
0.24
T;T;T;T;T;T;T;T
Sift4G
Benign
0.36
T;T;T;T;.;T;.;.
Polyphen
0.11
.;.;B;B;.;.;.;.
Vest4
0.24
MutPred
0.30
.;.;Gain of disorder (P = 0.0188);Gain of disorder (P = 0.0188);.;.;.;.;
MVP
0.27
MPC
0.41
ClinPred
0.13
T
GERP RS
4.3
Varity_R
0.045
gMVP
0.17

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: rs757590911; hg19: chr12-55357634; API