X-32436229-A-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_004006.3(DMD):c.4071+2012T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.49 (9662 hom., 15854 hem., cov: 22)
  • Failed GnomAD Quality Control
• Consequence: DMD NM_004006.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0860

Genes affected

DMD (HGNC:2928): (dystrophin) This gene spans a genomic range of greater than 2 Mb and encodes a large protein containing an N-terminal actin-binding domain and multiple spectrin repeats. The encoded protein forms a component of the dystrophin-glycoprotein complex (DGC), which bridges the inner cytoskeleton and the extracellular matrix. Deletions, duplications, and point mutations at this gene locus may cause Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), or cardiomyopathy. Alternative promoter usage and alternative splicing result in numerous distinct transcript variants and protein isoforms for this gene. [provided by RefSeq, Dec 2016]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.0).
• BS2: High Homozygotes in GnomAd at 9670 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DMD	NM_004006.3	c.4071+2012T>C		intron_variant		ENST00000357033.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DMD	ENST00000357033.9	c.4071+2012T>C		intron_variant		1	NM_004006.3	P4

Frequencies

GnomAD3 genomes AF: 0.492 AC: 54200 AN: 110148 Hom.: 9670 Cov.: 22 AF XY: 0.488 AC XY: 15820 AN XY: 32424

Gnomad AFR AF: 0.537

Gnomad AMI AF: 0.155

Gnomad AMR AF: 0.462

Gnomad ASJ AF: 0.398

Gnomad EAS AF: 0.754

Gnomad SAS AF: 0.504

Gnomad FIN AF: 0.560

Gnomad MID AF: 0.421

Gnomad NFE AF: 0.456

Gnomad OTH AF: 0.482

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Data not reliable, filtered out with message: InbreedingCoeff AF: 0.492 AC: 54222 AN: 110200 Hom.: 9662 Cov.: 22 AF XY: 0.488 AC XY: 15854 AN XY: 32486

Gnomad4 AFR AF: 0.537

Gnomad4 AMR AF: 0.462

Gnomad4 ASJ AF: 0.398

Gnomad4 EAS AF: 0.755

Gnomad4 SAS AF: 0.502

Gnomad4 FIN AF: 0.560

Gnomad4 NFE AF: 0.456

Gnomad4 OTH AF: 0.477

Alfa AF: 0.452 Hom.: 28254

Bravo AF: 0.497

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
Cadd	Benign	0.74
Dann	Benign	0.66

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

Other links and lift over

dbSNP: rs2405829; hg19: chrX-32454346;