chr12-54974463-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001136030.3(TESPA1):​c.100G>T​(p.Ala34Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,455,964 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: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TESPA1
NM_001136030.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.35
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12132797).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TESPA1NM_001136030.3 linkuse as main transcriptc.100G>T p.Ala34Ser missense_variant 2/11 ENST00000449076.6 NP_001129502.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TESPA1ENST00000449076.6 linkuse as main transcriptc.100G>T p.Ala34Ser missense_variant 2/112 NM_001136030.3 ENSP00000400892 P1A2RU30-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1455964
Hom.:
0
Cov.:
32
AF XY:
0.00000553
AC XY:
4
AN XY:
723594
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000451
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000680
Hom.:
0
Bravo
AF:
0.0000113

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 GeneticsJul 06, 2021The c.100G>T (p.A34S) alteration is located in exon 2 (coding exon 1) of the TESPA1 gene. This alteration results from a G to T substitution at nucleotide position 100, causing the alanine (A) at amino acid position 34 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
0.13
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0061
T;T;.;T
Eigen
Benign
-0.10
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.73
.;T;T;T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.12
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.4
M;M;.;.
MutationTaster
Benign
0.98
N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.38
N;N;N;D
REVEL
Benign
0.038
Sift
Benign
0.11
T;T;D;D
Sift4G
Uncertain
0.049
D;D;T;.
Polyphen
0.87
P;P;.;.
Vest4
0.29
MutPred
0.21
Gain of glycosylation at A34 (P = 0.0058);Gain of glycosylation at A34 (P = 0.0058);Gain of glycosylation at A34 (P = 0.0058);Gain of glycosylation at A34 (P = 0.0058);
MVP
0.50
MPC
0.36
ClinPred
0.38
T
GERP RS
3.0
Varity_R
0.038
gMVP
0.058

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: rs866259394; hg19: chr12-55368247; API