NM_020711.3:c.728C>A

Variant names:

• chr2-157321398-G-T
• rs767158796
• NM_020711.3:c.728C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020711.3(ERMN):​c.728C>A​(p.Thr243Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ERMN NM_020711.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.602
• Publications: 0 publications found

Genes affected

ERMN (HGNC:29208): (ermin) Predicted to enable actin filament binding activity. Involved in actin filament organization; regulation of cell projection organization; and regulation of cell shape. Located in cell cortex; internode region of axon; and paranode region of axon. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.02314499).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020711.3. 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
	ERMN	NM_020711.3	MANE Select	c.728C>A	p.Thr243Asn	missense	Exon 3 of 3	NP_065762.1	Q8TAM6-1
	ERMN	NM_001009959.3		c.767C>A	p.Thr256Asn	missense	Exon 4 of 4	NP_001009959.1	Q8TAM6-2
	ERMN	NM_001304344.2		c.728C>A	p.Thr243Asn	missense	Exon 4 of 4	NP_001291273.1	Q8TAM6-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERMN	ENST00000410096.6	TSL:1 MANE Select	c.728C>A	p.Thr243Asn	missense	Exon 3 of 3	ENSP00000387047.1	Q8TAM6-1
	ERMN	ENST00000397283.6	TSL:2	c.767C>A	p.Thr256Asn	missense	Exon 4 of 4	ENSP00000380453.2	Q8TAM6-2
	ERMN	ENST00000875547.1		c.728C>A	p.Thr243Asn	missense	Exon 4 of 4	ENSP00000545606.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152110 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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

GnomAD2 exomes AF: 0.00000401 AC: 1 AN: 249206 AF XY: 0.00000740

Gnomad AFR exome AF: 0.0000646

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 1461846 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727224

African (AFR) AF: 0.00 AC: 0 AN: 33478

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

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111978

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152110 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74302

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000242 AC: 1 AN: 41402

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10608

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68022

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.0000508 Hom.: 0

ExAC AF: 0.00000827 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	3.5
DANN	Benign	0.47
DEOGEN2	Benign	0.0099	T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.028	N
LIST_S2	Benign	0.39	T
M_CAP	Benign	0.0021	T
MetaRNN	Benign	0.023	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
PhyloP100		0.60
PrimateAI	Benign	0.24	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.034
Sift	Benign	0.32	T
Sift4G	Benign	0.51	T
Polyphen		0.0	B
Vest4		0.070
MutPred		0.15		Loss of phosphorylation at T243 (P = 0.0276)
MVP		0.076
MPC		0.058
ClinPred		0.058	T
GERP RS		-3.2
Varity_R		0.046
gMVP		0.090
Mutation Taster		=91/9	polymorphism

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: rs767158796; hg19: chr2-158177910;