Genetic Variant EFR3B:p.Arg63Cys (chr2-25093105-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_014971.2(EFR3B):c.187C>T(p.Arg63Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000322 in 1,551,714 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

EFR3B
NM_014971.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.59

Variant links:

Genes affected

EFR3B (HGNC:29155): (EFR3 homolog B) Involved in phosphatidylinositol phosphate biosynthetic process and protein localization to plasma membrane. Located in actin cytoskeleton; cytosol; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

EFR3B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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
EFR3B	NM_014971.2 link	c.187C>T	p.Arg63Cys	missense_variant	Exon 3 of 23	ENST00000403714.8	NP_055786.1	Q9Y2G0-1B3KT90
EFR3B	NM_001319099.2 link	c.82C>T	p.Arg28Cys	missense_variant	Exon 3 of 23		NP_001306028.1	E7ESK9B3KT90

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EFR3B	ENST00000403714.8 link	c.187C>T	p.Arg63Cys	missense_variant	Exon 3 of 23	5	NM_014971.2	ENSP00000384081.3	Q9Y2G0-1
EFR3B	ENST00000402191.5 link	c.82C>T	p.Arg28Cys	missense_variant	Exon 3 of 23	5		ENSP00000385832.1	E7ESK9
EFR3B	ENST00000401432.7 link	c.187C>T	p.Arg63Cys	missense_variant	Exon 3 of 19	2		ENSP00000386082.3	Q9Y2G0-3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000632

AC:

AN:

158324

Hom.:

AF XY:

0.0000120

AC XY:

AN XY:

83398

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000917

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:

0.00000214

AC:

AN:

1399594

Hom.:

Cov.:

AF XY:

0.00000435

AC XY:

AN XY:

690234

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000280

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000203

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 05, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.187C>T (p.R63C) alteration is located in exon 3 (coding exon 3) of the EFR3B gene. This alteration results from a C to T substitution at nucleotide position 187, causing the arginine (R) at amino acid position 63 to be replaced by a cysteine (C). 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

Pathogenic

0.85

BayesDel_addAF

Uncertain

0.072

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.37

.;T;.

Eigen

Pathogenic

0.68

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.81

LIST_S2

Pathogenic

1.0

D;D;D

M_CAP

Benign

0.032

MetaRNN

Uncertain

0.56

D;D;D

MetaSVM

Benign

-0.91

MutationAssessor

Uncertain

2.6

M;M;.

PrimateAI

Pathogenic

0.85

PROVEAN

Pathogenic

-6.7

D;D;D

REVEL

Uncertain

0.31

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.75

MutPred

0.51

Loss of MoRF binding (P = 0.0059);Loss of MoRF binding (P = 0.0059);.;

MVP

0.23

ClinPred

0.99

GERP RS

4.8

Varity_R

0.69

gMVP

0.95

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