dbSNP rs985403776: DMTN:p.Asp225Asn (chr8-22072394-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001387751.1(DMTN):c.673G>A(p.Asp225Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,447,144 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: not found (cov: 31)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

DMTN
NM_001387751.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.82

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:

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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=0.18356353).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMTN	NM_001387751.1 link	c.673G>A	p.Asp225Asn	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.673G>A	p.Asp225Asn	missense_variant	Exon 9 of 16	5	NM_001387751.1	ENSP00000350977.3		Q08495-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000132

AC:

AN:

227654

Hom.:

AF XY:

0.00

AC XY:

AN XY:

122804

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000622

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000588

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000124

AC:

AN:

1447144

Hom.:

Cov.:

AF XY:

0.00000835

AC XY:

AN XY:

718606

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000701

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000255

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000118

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

Cov.:

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

Jun 11, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.673G>A (p.D225N) alteration is located in exon 9 (coding exon 8) of the DMTN gene. This alteration results from a G to A substitution at nucleotide position 673, causing the aspartic acid (D) at amino acid position 225 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

0.10

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

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

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.88

LIST_S2

Uncertain

0.92

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

M_CAP

Benign

0.025

MetaRNN

Benign

0.18

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

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.9

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

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-1.1

N;N;N;N;N;.;N;N;N;N;N;N

REVEL

Benign

0.060

Sift

Uncertain

0.012

D;T;T;T;D;.;D;T;T;T;D;D

Sift4G

Benign

0.061

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

Polyphen

1.0

D;P;.;.;.;.;P;P;P;P;D;D

Vest4

0.48

MutPred

0.14

Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);.;.;.;.;Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);

MVP

0.64

MPC

0.57

ClinPred

0.64

GERP RS

5.2

Varity_R

0.078

gMVP

0.33

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.

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