NM_001353214.3:c.2164G>A

Variant names:

• chr18-49044066-C-T
• rs528865224
• NM_001353214.3:c.2164G>A

Variant summary

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

The NM_001353214.3(DYM):​c.2164G>A​(p.Asp722Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,302 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DYM NM_001353214.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.97

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 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYM	NM_001353214.3	c.2164G>A	p.Asp722Asn	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.2164G>A	p.Asp722Asn	missense_variant	Exon 18 of 18		NM_001353214.3	ENSP00000501694.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251442 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135886

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: 6.84e-7 AC: 1 AN: 1461302 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726958

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: 0.00

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	0.12
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	21
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.11	T;.
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.92	D;D
M_CAP	Benign	0.055	D
MetaRNN	Uncertain	0.49	T;T
MetaSVM	Uncertain	0.070	D
MutationAssessor	Benign	0.40	N;.
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-0.17	N;N
REVEL	Uncertain	0.38
Sift	Benign	0.28	T;T
Sift4G	Benign	0.39	T;T
Polyphen		0.99	D;D
Vest4		0.47
MutPred		0.48		Loss of glycosylation at S668 (P = 0.0803);.;
MVP		0.89
MPC		0.072
ClinPred		0.54	D
GERP RS		5.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.086
gMVP		0.30

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: rs528865224; hg19: chr18-46570436;