1-231564528-C-A

Variant summary

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

The NM_005999.3(TSNAX):​c.496C>A​(p.Pro166Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000344 in 1,455,542 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TSNAX
NM_005999.3 missense, splice_region

Scores

19
Splicing: ADA: 0.0001313
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.46
Variant links:
Genes affected
TSNAX (HGNC:12380): (translin associated factor X) This gene encodes a protein which specifically interacts with translin, a DNA-binding protein that binds consensus sequences at breakpoint junctions of chromosomal translocations. The encoded protein contains bipartite nuclear targeting sequences that may provide nuclear transport for translin, which lacks any nuclear targeting motifs. [provided by RefSeq, Jul 2008]
TSNAX-DISC1 (HGNC:49177): (TSNAX-DISC1 readthrough (NMD candidate)) This gene represents naturally occurring read-through transcription between the neighboring TSNAX (translin-associated factor X) and DISC1 (disrupted in schizophrenia 1) genes on chromosome 1. Alternative splicing results in multiple transcript variants, all of which are candidates for nonsense-mediated mRNA decay (NMD) and are unlikely to be protein-coding. These alterations in gene processing may be associated with risk for psychiatric illness, most notably, schizophrenia. [provided by RefSeq, Nov 2010]

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=0.093007565).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSNAXNM_005999.3 linkc.496C>A p.Pro166Thr missense_variant, splice_region_variant 6/6 ENST00000366639.9 NP_005990.1 Q99598A0A024R3V8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSNAXENST00000366639.9 linkc.496C>A p.Pro166Thr missense_variant, splice_region_variant 6/61 NM_005999.3 ENSP00000355599.3 Q99598
TSNAX-DISC1ENST00000602956.5 linkn.495+3273C>A intron_variant 2 ENSP00000473532.1 C4P0D8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000803
AC:
2
AN:
249166
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134604
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000344
AC:
5
AN:
1455542
Hom.:
0
Cov.:
32
AF XY:
0.00000553
AC XY:
4
AN XY:
722844
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:
0.0000188
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsAug 05, 2024The c.496C>A (p.P166T) alteration is located in exon 6 (coding exon 6) of the TSNAX gene. This alteration results from a C to A substitution at nucleotide position 496, causing the proline (P) at amino acid position 166 to be replaced by a threonine (T). 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
0.057
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
16
DANN
Benign
0.89
DEOGEN2
Benign
0.089
T
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.50
N
LIST_S2
Benign
0.67
T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.093
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
2.0
M
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.41
N
REVEL
Benign
0.078
Sift
Benign
0.17
T
Sift4G
Benign
0.49
T
Polyphen
0.0020
B
Vest4
0.084
MutPred
0.57
Gain of relative solvent accessibility (P = 0.005);
MVP
0.12
MPC
0.39
ClinPred
0.045
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.051
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00013
dbscSNV1_RF
Benign
0.0
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: rs1276589577; hg19: chr1-231700274; API