8-22072355-C-T

Variant names:

Variant summary

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

The NM_001387751.1(DMTN):c.634C>T(p.Arg212Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000225 in 1,603,380 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 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

DMTN
NM_001387751.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.00

Variant links:

Genes affected

DMTN (HGNC:3382): (dematin actin binding protein) The protein encoded by this gene is an actin binding and bundling protein that plays a structural role in erythrocytes, by stabilizing and attaching the spectrin/actin cytoskeleton to the erythrocyte membrane in a phosphorylation-dependent manner. This protein contains a core domain in the N-terminus, and a headpiece domain in the C-terminus that binds F-actin. When purified from erythrocytes, this protein exists as a trimer composed of two 48 kDa polypeptides and a 52 kDa polypeptide. The different subunits arise from alternative splicing in the 3' coding region, where the headpiece domain is located. Disruption of this gene has been correlated with the autosomal dominant Marie Unna hereditary hypotrichosis disease, while loss of heterozygosity of this gene is thought to play a role in prostate cancer progression. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2014]

DMTN links:

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=0.17650333).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMTN	NM_001387751.1 link	c.634C>T	p.Arg212Trp	missense_variant	Exon 9 of 16	ENST00000358242.6	NP_001374680.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMTN	ENST00000358242.6 link	c.634C>T	p.Arg212Trp	missense_variant	Exon 9 of 16	5	NM_001387751.1	ENSP00000350977.3		Q08495-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151900

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000295

AC:

AN:

237096

Hom.:

AF XY:

0.0000390

AC XY:

AN XY:

128072

show subpopulations

Gnomad AFR exome

AF:

0.0000673

Gnomad AMR exome

AF:

0.0000301

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:

0.0000469

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000214

AC:

AN:

1451480

Hom.:

Cov.:

AF XY:

0.0000236

AC XY:

AN XY:

721154

show subpopulations

Gnomad4 AFR exome

AF:

0.0000602

Gnomad4 AMR exome

AF:

0.0000459

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:

0.0000235

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151900

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74166

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000511

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.634C>T (p.R212W) alteration is located in exon 9 (coding exon 8) of the DMTN gene. This alteration results from a C to T substitution at nucleotide position 634, causing the arginine (R) at amino acid position 212 to be replaced by a tryptophan (W). 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

0.20

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.33

.;T;.;.;.;T;T;T;T;T;.;.

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.17

FATHMM_MKL

Benign

0.40

LIST_S2

Uncertain

0.96

D;.;.;D;D;D;.;.;D;.;.;.

M_CAP

Benign

0.069

MetaRNN

Benign

0.18

T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

L;L;.;.;.;.;L;L;L;L;L;L

PrimateAI

Uncertain

0.57

PROVEAN

Uncertain

-3.9

D;D;D;D;D;.;D;D;D;D;D;D

REVEL

Benign

0.14

Sift

Uncertain

0.0030

D;D;D;D;D;.;D;D;D;D;D;D

Sift4G

Uncertain

0.0050

D;D;D;D;D;D;D;D;D;D;D;D

Polyphen

0.99

D;D;.;.;.;.;D;D;D;D;D;D

Vest4

0.51

MVP

0.38

MPC

0.78

ClinPred

0.43

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.15

gMVP

0.23

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over