Genetic Variant DMRTC2:p.Ala93Val (chr19-41847789-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001040283.3(DMRTC2):c.278C>T(p.Ala93Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,611,718 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000024 ( 2 hom. )

Consequence

DMRTC2
NM_001040283.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59

Variant links:

Genes affected

DMRTC2 (HGNC:13911): (DMRT like family C2) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in germ cell development; regulation of transcription by RNA polymerase II; and sex differentiation. Predicted to act upstream of or within male gamete generation and positive regulation of histone H3-K9 methylation. Predicted to be located in XY body. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

DMRTC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06872901).

BS2

High Homozygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMRTC2	NM_001040283.3 link	c.278C>T	p.Ala93Val	missense_variant	Exon 3 of 9	ENST00000269945.8	NP_001035373.1	Q8IXT2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMRTC2	ENST00000269945.8 link	c.278C>T	p.Ala93Val	missense_variant	Exon 3 of 9	1	NM_001040283.3	ENSP00000269945.2		Q8IXT2-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000532

AC:

AN:

244198

Hom.:

AF XY:

0.0000680

AC XY:

AN XY:

132418

show subpopulations

Gnomad AFR exome

AF:

0.0000640

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000400

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000240

AC:

AN:

1459612

Hom.:

Cov.:

AF XY:

0.0000317

AC XY:

AN XY:

725974

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:

0.000408

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74292

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000897

Hom.:

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.278C>T (p.A93V) alteration is located in exon 3 (coding exon 2) of the DMRTC2 gene. This alteration results from a C to T substitution at nucleotide position 278, causing the alanine (A) at amino acid position 93 to be replaced by a valine (V). 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

0.15

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

.;.;T;.;.

Eigen

Benign

0.023

Eigen_PC

Benign

0.10

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.78

T;T;T;T;T

M_CAP

Benign

0.0068

MetaRNN

Benign

0.069

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

.;.;L;.;.

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.1

.;.;N;.;.

REVEL

Benign

0.034

Sift

Benign

0.084

.;.;T;.;.

Sift4G

Benign

0.31

T;T;T;T;T

Polyphen

0.35, 0.98

.;B;D;.;.

Vest4

0.27, 0.23

MutPred

0.21

Gain of catalytic residue at A93 (P = 0.0861);Gain of catalytic residue at A93 (P = 0.0861);Gain of catalytic residue at A93 (P = 0.0861);Gain of catalytic residue at A93 (P = 0.0861);Gain of catalytic residue at A93 (P = 0.0861);

MVP

0.15

MPC

0.19

ClinPred

0.069

GERP RS

4.3

Varity_R

0.062

gMVP

0.43

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