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GeneBe

15-51782786-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014548.4(TMOD2):​c.690G>T​(p.Lys230Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 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: 6.8e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TMOD2
NM_014548.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.48
Variant links:
Genes affected
TMOD2 (HGNC:11872): (tropomodulin 2) This gene encodes a neuronal-specific member of the tropomodulin family of actin-regulatory proteins. The encoded protein caps the pointed end of actin filaments preventing both elongation and depolymerization. The capping activity of this protein is dependent on its association with tropomyosin. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Dec 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.32700142).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMOD2NM_014548.4 linkuse as main transcriptc.690G>T p.Lys230Asn missense_variant 7/10 ENST00000249700.9
TMOD2NM_001142885.2 linkuse as main transcriptc.624+1612G>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMOD2ENST00000249700.9 linkuse as main transcriptc.690G>T p.Lys230Asn missense_variant 7/101 NM_014548.4 P1Q9NZR1-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
6.84e-7
AC:
1
AN:
1461758
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727180
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
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 GeneticsApr 22, 2022The c.690G>T (p.K230N) alteration is located in exon 7 (coding exon 6) of the TMOD2 gene. This alteration results from a G to T substitution at nucleotide position 690, causing the lysine (K) at amino acid position 230 to be replaced by an asparagine (N). 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
0.22
BayesDel_addAF
Benign
-0.020
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.14
T;T
Eigen
Benign
-0.061
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.48
T;T
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.33
T;T
MetaSVM
Benign
-0.30
T
MutationAssessor
Benign
1.3
L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.83
N;N
REVEL
Uncertain
0.36
Sift
Benign
0.44
T;T
Sift4G
Benign
0.35
T;T
Polyphen
0.0020
B;.
Vest4
0.42
MutPred
0.44
Gain of ubiquitination at K229 (P = 0.0374);.;
MVP
0.87
MPC
0.038
ClinPred
0.50
T
GERP RS
5.7
Varity_R
0.10
gMVP
0.44

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr15-52074983; API