Genetic Variant EBLN2:p.Asp99Tyr (chr3-73062376-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_018029.4(EBLN2):c.295G>T(p.Asp99Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000056 in 1,606,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D99H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

EBLN2
NM_018029.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.365

Publications

1 publications found

Variant links:

Genes affected

EBLN2 (HGNC:25493): (endogenous Bornavirus like nucleoprotein 2)

EBLN2 links:

PPP4R2 (HGNC:18296): (protein phosphatase 4 regulatory subunit 2) The protein encoded by this gene is a regulatory subunit of the serine/threonine-protein phosphatase 4 complex. In addition to being required for efficient DNA double strand break repair, this complex plays a role in organization of microtubules at centrosomes and processing of spliceosomal snRNPs. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2015]

PPP4R2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
EBLN2	NM_018029.4 link	c.295G>T	p.Asp99Tyr	missense_variant	Exon 1 of 1	ENST00000533473.1	NP_060499.3	Q6P2I7
PPP4R2	NM_174907.4 link	c.420-1297G>T		intron_variant	Intron 5 of 8	ENST00000356692.10	NP_777567.1	Q9NY27-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EBLN2	ENST00000533473.1 link	c.295G>T	p.Asp99Tyr	missense_variant	Exon 1 of 1	6	NM_018029.4	ENSP00000432104.1		Q6P2I7
PPP4R2	ENST00000356692.10 link	c.420-1297G>T		intron_variant	Intron 5 of 8	1	NM_174907.4	ENSP00000349124.5		Q9NY27-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152098

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000550

AC:

AN:

1454294

Hom.:

Cov.:

AF XY:

0.00000691

AC XY:

AN XY:

723462

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32920

American (AMR)

AF:

0.00

AC:

AN:

41892

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25838

East Asian (EAS)

AF:

0.00

AC:

AN:

39626

South Asian (SAS)

AF:

0.00

AC:

AN:

85016

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53302

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5720

European-Non Finnish (NFE)

AF:

0.00000721

AC:

AN:

1109942

Other (OTH)

AF:

0.00

AC:

AN:

60038

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.537

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74296

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41418

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000564

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.088

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.024

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.054

LIST_S2

Benign

0.49

M_CAP

Benign

0.0027

MetaRNN

Benign

0.28

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

PhyloP100

0.36

PrimateAI

Benign

0.45

PROVEAN

Pathogenic

-4.9

REVEL

Benign

0.047

Sift

Uncertain

0.011

Sift4G

Uncertain

0.015

Polyphen

1.0

Vest4

0.34

MutPred

0.37

Loss of disorder (P = 0.0072);

MVP

0.15

MPC

0.018

ClinPred

0.80

GERP RS

0.46

Varity_R

0.38

gMVP

0.16

Mutation Taster

=98/2

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.31

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.31

Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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chr3-73062376-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over