Genetic Variant DMC1:p.Ala329Thr (chr22-38520058-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_007068.4(DMC1):c.985G>A(p.Ala329Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000893 in 1,613,196 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000087 ( 0 hom. )

Consequence

DMC1
NM_007068.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.62

Variant links:

Genes affected

DMC1 (HGNC:2927): (DNA meiotic recombinase 1) This gene encodes a member of the superfamily of recombinases (also called DNA strand-exchange proteins). Recombinases are important for repairing double-strand DNA breaks during mitosis and meiosis. This protein, which is evolutionarily conserved, is reported to be essential for meiotic homologous recombination and may thus play an important role in generating diversity of genetic information. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]

DMC1 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=0.25068355).

BS2

High AC in GnomAd4 at 17 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMC1	NM_007068.4 link	c.985G>A	p.Ala329Thr	missense_variant	Exon 14 of 14	ENST00000216024.7	NP_008999.2	Q14565-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMC1	ENST00000216024.7 link	c.985G>A	p.Ala329Thr	missense_variant	Exon 14 of 14	1	NM_007068.4	ENSP00000216024.2		Q14565-1
DMC1	ENST00000428462.6 link	c.820G>A	p.Ala274Thr	missense_variant	Exon 11 of 11	2		ENSP00000412703.2		Q14565-2

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.0000437

AC:

AN:

251432

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

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:

0.0000616

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000869

AC:

127

AN:

1461102

Hom.:

Cov.:

AF XY:

0.0000853

AC XY:

AN XY:

726890

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000990

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.000112

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.000290

Gnomad4 AMR

AF:

0.0000656

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:

0.0000948

Hom.:

Bravo

AF:

0.000117

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000330

AC:

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

Dec 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.985G>A (p.A329T) alteration is located in exon 14 (coding exon 13) of the DMC1 gene. This alteration results from a G to A substitution at nucleotide position 985, causing the alanine (A) at amino acid position 329 to be replaced by a threonine (T). 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

0.21

BayesDel_addAF

Benign

-0.096

BayesDel_noAF

Benign

-0.10

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.064

.;T

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.0059

MetaRNN

Benign

0.25

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

.;L

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.89

N;N

REVEL

Benign

0.18

Sift

Benign

0.077

T;T

Sift4G

Benign

0.15

T;T

Polyphen

0.022

.;B

Vest4

0.42

MVP

0.42

MPC

0.79

ClinPred

0.072

GERP RS

6.0

Varity_R

0.62

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.17

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