NM_018217.3:c.1271G>A

Variant names:

• chr20-35115899-C-T
• rs996131573
• NM_018217.3:c.1271G>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_018217.3(EDEM2):​c.1271G>A​(p.Arg424His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R424C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000062 (0 hom.)
• Consequence: EDEM2 NM_018217.3 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 7.73
• Publications: 0 publications found

Genes affected

EDEM2 (HGNC:15877): (ER degradation enhancing alpha-mannosidase like protein 2) In the endoplasmic reticulum (ER), misfolded proteins are retrotranslocated to the cytosol and degraded by the proteasome in a process known as ER-associated degradation (ERAD). EDEM2 belongs to a family of proteins involved in ERAD of glycoproteins (Mast et al., 2005 [PubMed 15537790]).[supplied by OMIM, Mar 2008]

MMP24-AS1-EDEM2 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.881

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018217.3. 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
	EDEM2	NM_018217.3	MANE Select	c.1271G>A	p.Arg424His	missense	Exon 11 of 11	NP_060687.2	Q9BV94-1
	EDEM2	NM_001145025.2		c.1160G>A	p.Arg387His	missense	Exon 10 of 10	NP_001138497.1	Q9BV94-2
	MMP24-AS1-EDEM2	NM_001355008.2		c.1148G>A	p.Arg383His	missense	Exon 15 of 15	NP_001341937.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EDEM2	ENST00000374492.8	TSL:1 MANE Select	c.1271G>A	p.Arg424His	missense	Exon 11 of 11	ENSP00000363616.3	Q9BV94-1
	EDEM2	ENST00000374491.3	TSL:1	c.1160G>A	p.Arg387His	missense	Exon 10 of 10	ENSP00000363615.2	Q9BV94-2
	EDEM2	ENST00000881595.1		c.1319G>A	p.Arg440His	missense	Exon 12 of 12	ENSP00000551654.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152106 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000616 AC: 9 AN: 1461814 Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4 AN XY: 727194

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1111966

Other (OTH) AF: 0.0000166 AC: 1 AN: 60390

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152106 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74302

African (AFR) AF: 0.00 AC: 0 AN: 41398

American (AMR) AF: 0.0000655 AC: 1 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10606

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	1	-	Maturity-onset diabetes of the young (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.23
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.50	T
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.081	D
MetaRNN	Pathogenic	0.88	D
MetaSVM	Uncertain	0.053	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		7.7
PrimateAI	Pathogenic	0.84	D
PROVEAN	Pathogenic	-4.7	D
REVEL	Pathogenic	0.69
Sift	Benign	0.13	T
Sift4G	Benign	0.23	T
Polyphen		1.0	D
Vest4		0.84
MutPred		0.64		Loss of stability (P = 0.0603)
MVP		0.91
MPC		1.2
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.48
gMVP		0.81
Mutation Taster		=38/62	disease causing

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

Other links and lift over

dbSNP: rs996131573; hg19: chr20-33703702; COSMIC: COSV63259657; COSMIC: COSV63259657;