6-130869721-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001431.4(EPB41L2):c.2449A>G(p.Asn817Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N817S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EPB41L2 NM_001431.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.747

Genes affected

EPB41L2 (HGNC:3379): (erythrocyte membrane protein band 4.1 like 2) Predicted to enable PH domain binding activity; cytoskeletal protein binding activity; and structural molecule activity. Involved in positive regulation of protein localization to cell cortex. Located in cell junction; nucleoplasm; and plasma membrane. Colocalizes with COP9 signalosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.064356506).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EPB41L2	NM_001431.4	c.2449A>G	p.Asn817Asp	missense_variant	15/20	ENST00000337057.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EPB41L2	ENST00000337057.8	c.2449A>G	p.Asn817Asp	missense_variant	15/20	1	NM_001431.4	P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251486 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135920

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

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: 1461890 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727244

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 05, 2022

The c.2449A>G (p.N817D) alteration is located in exon 15 (coding exon 14) of the EPB41L2 gene. This alteration results from a A to G substitution at nucleotide position 2449, causing the asparagine (N) at amino acid position 817 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.55
Cadd	Benign	7.2
Dann	Benign	0.92
DEOGEN2	Benign	0.072	T;.;T;.;.;.;T
Eigen	Benign	-0.93
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.084	N
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.064	T;T;T;T;T;T;T
MetaSVM	Benign	-0.79	T
MutationAssessor	Benign	1.4	L;.;L;.;.;.;.
MutationTaster	Benign	1.0	N;N;N;N;N;N;N;N;N;N;N;N;N;N
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-0.48	N;.;N;N;N;N;N
REVEL	Benign	0.15
Sift	Benign	0.56	T;.;T;T;T;T;T
Sift4G	Benign	0.56	T;T;T;T;T;T;T
Polyphen		0.11	B;.;B;.;B;.;.
Vest4		0.031
MutPred		0.28		Gain of loop (P = 0.0045);.;Gain of loop (P = 0.0045);.;.;.;.;
MVP		0.51
MPC		0.14
ClinPred		0.11	T
GERP RS		-4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.027
gMVP		0.099

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: rs1415892992; hg19: chr6-131190861;