rs730880289

Variant names:

• chr2-219420157-TGA-T
• rs730880289
• NM_001927.4:c.639+4_639+5delAG

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP5

The NM_001927.4(DES):​c.639+4_639+5delAG variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DES NM_001927.4 splice_region, intron
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 3.21
• Publications: 0 publications found

Genes affected

DES (HGNC:2770): (desmin) This gene encodes a muscle-specific class III intermediate filament. Homopolymers of this protein form a stable intracytoplasmic filamentous network connecting myofibrils to each other and to the plasma membrane. Mutations in this gene are associated with desmin-related myopathy, a familial cardiac and skeletal myopathy (CSM), and with distal myopathies. [provided by RefSeq, Jul 2008]

DES Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• dilated cardiomyopathy 1I

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
• myofibrillar myopathy

  Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
• myofibrillar myopathy 1

  Inheritance: SD, AD, AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• atrioventricular block

  Inheritance: AR, AD Classification: STRONG Submitted by: Genomics England PanelApp
• arrhythmogenic right ventricular cardiomyopathy

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• neurogenic scapuloperoneal syndrome, Kaeser type

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-219420157-TGA-T is Pathogenic according to our data. Variant chr2-219420157-TGA-T is described in ClinVar as Pathogenic. ClinVar VariationId is 180206.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001927.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DES	NM_001927.4	MANE Select	c.639+4_639+5delAG		splice_region intron	N/A	NP_001918.3
	DES	NM_001382708.1		c.636+7_636+8delAG		splice_region intron	N/A	NP_001369637.1
	DES	NM_001382712.1		c.639+4_639+5delAG		splice_region intron	N/A	NP_001369641.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DES	ENST00000373960.4	TSL:1 MANE Select	c.639+3_639+4delGA		splice_region intron	N/A	ENSP00000363071.3	P17661
	DES	ENST00000942906.1		c.639+3_639+4delGA		splice_region intron	N/A	ENSP00000612965.1
	DES	ENST00000942898.1		c.639+3_639+4delGA		splice_region intron	N/A	ENSP00000612957.1

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Desmin-related myofibrillar myopathy (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.2
Mutation Taster		=8/92	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.38		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.38		Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs730880289; hg19: chr2-220284879;