2-219418853-C-G

Variant names:

• chr2-219418853-C-G
• NM_001927.4:c.391C>G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_001927.4(DES):​c.391C>G​(p.Gln131Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000007 in 1,428,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: DES NM_001927.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.97

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a region_of_interest Coil 1A (size 32) in uniprot entity DESM_HUMAN there are 10 pathogenic changes around while only 0 benign (100%) in NM_001927.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.775

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DES	NM_001927.4	c.391C>G	p.Gln131Glu	missense_variant	Exon 1 of 9	ENST00000373960.4	NP_001918.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DES	ENST00000373960.4	c.391C>G	p.Gln131Glu	missense_variant	Exon 1 of 9	1	NM_001927.4	ENSP00000363071.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.00e-7 AC: 1 AN: 1428392 Hom.: 0 Cov.: 92 AF XY: 0.00 AC XY: 0 AN XY: 707376

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.13e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.24
CardioboostCm	Uncertain	0.19
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	31
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.73	D
Eigen	Uncertain	0.68
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.096	D
MetaRNN	Pathogenic	0.77	D
MetaSVM	Uncertain	0.70	D
MutationAssessor	Benign	1.8	L
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-2.5	D
REVEL	Pathogenic	0.73
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0020	D
Polyphen		0.99	D
Vest4		0.66
MutPred		0.53		Loss of MoRF binding (P = 0.0618);
MVP		0.95
MPC		2.0
ClinPred		0.99	D
GERP RS		4.7
Varity_R		0.78
gMVP		0.85

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-220283575;