Genetic Variant EPB42:p.Cys621Phe (chr15-43201895-C-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001114134.2(EPB42):c.1862G>T(p.Cys621Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,866 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 (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

EPB42
NM_001114134.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91

Variant links:

Genes affected

EPB42 (HGNC:3381): (erythrocyte membrane protein band 4.2) Erythrocyte membrane protein band 4.2 is an ATP-binding protein which may regulate the association of protein 3 with ankyrin. It probably has a role in erythrocyte shape and mechanical property regulation. Mutations in the EPB42 gene are associated with recessive spherocytic elliptocytosis and recessively transmitted hereditary hemolytic anemia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

EPB42 links:

ENSG00000285117 (HGNC:):

ENSG00000285117 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.971

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPB42	NM_001114134.2 link	c.1862G>T	p.Cys621Phe	missense_variant	Exon 12 of 13	ENST00000441366.7	NP_001107606.1	P16452-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPB42	ENST00000441366.7 link	c.1862G>T	p.Cys621Phe	missense_variant	Exon 12 of 13	1	NM_001114134.2	ENSP00000396616.2		P16452-1
ENSG00000285117	ENST00000563128.5 link	n.396G>T		non_coding_transcript_exon_variant	Exon 3 of 4	3		ENSP00000520455.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251492

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135920

show subpopulations

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:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

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.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jun 07, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1952G>T (p.C651F) alteration is located in exon 12 (coding exon 12) of the EPB42 gene. This alteration results from a G to T substitution at nucleotide position 1952, causing the cysteine (C) at amino acid position 651 to be replaced by a phenylalanine (F). 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

0.28

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

0.090

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.58

.;.;.;D;.

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.76

.;T;T;T;T

M_CAP

Benign

0.047

MetaRNN

Pathogenic

0.97

D;D;D;D;D

MetaSVM

Benign

-0.64

MutationAssessor

Pathogenic

3.0

.;.;.;M;.

PrimateAI

Uncertain

0.50

PROVEAN

Pathogenic

-9.7

.;.;D;D;.

REVEL

Uncertain

0.47

Sift

Uncertain

0.0010

.;.;D;D;.

Sift4G

Uncertain

0.018

.;.;D;D;D

Polyphen

1.0

D;D;D;D;.

Vest4

0.78, 0.78, 0.78

MutPred

0.88

.;.;.;Gain of MoRF binding (P = 0.2545);.;

MVP

0.65

ClinPred

1.0

GERP RS

4.6

Varity_R

0.99

gMVP

0.91

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over