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GeneBe

1-175077750-G-A

Variant summary

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

The NM_022093.2(TNN):c.332G>A(p.Arg111Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000112 in 1,614,194 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

TNN
NM_022093.2 missense

Scores

7
5
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.29
Variant links:
Genes affected
TNN (HGNC:22942): (tenascin N) Predicted to enable integrin binding activity. Predicted to be involved in several processes, including generation of neurons; negative regulation of canonical Wnt signaling pathway involved in osteoblast differentiation; and negative regulation of osteoblast differentiation. Predicted to act upstream of or within axonogenesis. Predicted to be located in extracellular matrix and neuron projection. Predicted to be active in collagen-containing extracellular matrix and extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.07383913).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TNNNM_022093.2 linkuse as main transcriptc.332G>A p.Arg111Gln missense_variant 2/19 ENST00000239462.9
TNNXM_017002048.2 linkuse as main transcriptc.386G>A p.Arg129Gln missense_variant 2/19
TNNXM_017002049.2 linkuse as main transcriptc.386G>A p.Arg129Gln missense_variant 2/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TNNENST00000239462.9 linkuse as main transcriptc.332G>A p.Arg111Gln missense_variant 2/192 NM_022093.2 P1
TNNENST00000621086.1 linkuse as main transcriptc.332G>A p.Arg111Gln missense_variant 1/165

Frequencies

GnomAD3 genomes
AF:
0.000131
AC:
20
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00375
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000211
AC:
53
AN:
251324
Hom.:
0
AF XY:
0.000265
AC XY:
36
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00318
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000109
AC:
160
AN:
1461890
Hom.:
0
Cov.:
33
AF XY:
0.000129
AC XY:
94
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00409
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.000298
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152304
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00375
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000254
Hom.:
0
Bravo
AF:
0.000128
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000189
AC:
23
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 02, 2023The c.332G>A (p.R111Q) alteration is located in exon 2 (coding exon 1) of the TNN gene. This alteration results from a G to A substitution at nucleotide position 332, causing the arginine (R) at amino acid position 111 to be replaced by a glutamine (Q). 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
0.11
BayesDel_addAF
Benign
-0.071
T
BayesDel_noAF
Uncertain
-0.030
Cadd
Pathogenic
30
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.077
T;.;.
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.074
T;T;T
MetaSVM
Benign
-0.43
T
MutationAssessor
Pathogenic
3.2
M;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-2.8
D;.;.
REVEL
Uncertain
0.31
Sift
Pathogenic
0.0
D;.;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.54
MVP
0.81
MPC
0.53
ClinPred
0.58
D
GERP RS
5.5
Varity_R
0.75
gMVP
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs201940821; hg19: chr1-175046886; API