NM_001353214.3:c.2172C>A

Variant names:

• chr18-49044058-G-T
• rs201928717
• NM_001353214.3:c.2172C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001353214.3(DYM):​c.2172C>A​(p.Asp724Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,030 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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: 0.0000014 (0 hom.)
• Consequence: DYM NM_001353214.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.72

Genes affected

DYM (HGNC:21317): (dymeclin) This gene encodes a protein which regulates Golgi-associated secretory pathways that are essential to endochondral bone formation during early development. This gene is also believed to play a role in early brain development. This gene is widely expressed in embryos and is particularly abundant in chodrocytes and brain tissues. It encodes a peripheral membrane protein which shuttles between the cytosol and Golgi complex. Mutations in this gene are associated with two types of recessive osteochondrodysplasia: Dyggve-Melchior-Clausen (DMC) dysplasia and Smith-McCort (SMC) dysplasia. [provided by RefSeq, Jun 2017]

DYM-AS1 (HGNC:37046): (DYM antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13219589).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYM	NM_001353214.3	c.2172C>A	p.Asp724Glu	missense_variant	Exon 18 of 18	ENST00000675505.1	NP_001340143.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYM	ENST00000675505.1	c.2172C>A	p.Asp724Glu	missense_variant	Exon 18 of 18		NM_001353214.3	ENSP00000501694.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251438 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135890

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461030 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726812

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-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	0.096
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	T;.
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.18
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Benign	0.58	T;T
M_CAP	Benign	0.056	D
MetaRNN	Benign	0.13	T;T
MetaSVM	Benign	-0.59	T
MutationAssessor	Benign	0.69	N;.
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-0.20	N;N
REVEL	Benign	0.28
Sift	Benign	0.29	T;T
Sift4G	Benign	1.0	T;T
Polyphen		0.0	B;B
Vest4		0.26
MutPred		0.24		Gain of sheet (P = 0.0827);.;
MVP		0.76
MPC		0.14
ClinPred		0.18	T
GERP RS		4.1
Varity_R		0.063
gMVP		0.12

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: rs201928717; hg19: chr18-46570428;