Genetic Variant EBF2:p.Ala420Thr (chr8-25861133-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_022659.4(EBF2):c.1258G>A(p.Ala420Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

EBF2
NM_022659.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.89

Variant links:

Genes affected

EBF2 (HGNC:19090): (EBF transcription factor 2) The protein encoded by this gene belongs to the COE (Collier/Olf/EBF) family of non-basic, helix-loop-helix transcription factors that have a well conserved DNA binding domain. The COE family proteins play an important role in variety of developmental processes. Studies in mouse suggest that this gene may be involved in the differentiation of osteoblasts. [provided by RefSeq, Oct 2011]

EBF2 links:

LOC102723395 (HGNC:):

LOC102723395 links:

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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
EBF2	NM_022659.4 link	c.1258G>A	p.Ala420Thr	missense_variant	Exon 13 of 16	ENST00000520164.6	NP_073150.2	Q9HAK2-1B7Z934B2RNT0
LOC102723395	XR_001745848.2 link	n.214-8846C>T		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EBF2	ENST00000520164.6 link	c.1258G>A	p.Ala420Thr	missense_variant	Exon 13 of 16	2	NM_022659.4	ENSP00000430241.1	Q9HAK2-1
EBF2	ENST00000408929.7 link	c.814G>A	p.Ala272Thr	missense_variant	Exon 12 of 15	2		ENSP00000386178.3	B7Z934
EBF2	ENST00000535548.1 link	c.451G>A	p.Ala151Thr	missense_variant	Exon 5 of 9	2		ENSP00000437909.1	Q9HAK2-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249526

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135372

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

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:

6.84e-7

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

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.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 24, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1258G>A (p.A420T) alteration is located in exon 13 (coding exon 13) of the EBF2 gene. This alteration results from a G to A substitution at nucleotide position 1258, causing the alanine (A) at amino acid position 420 to be replaced by a threonine (T). 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

0.064

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.072

T;T;.

Eigen

Benign

-0.10

Eigen_PC

Benign

0.061

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

T;T;D

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.45

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

L;.;.

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-1.4

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.24

T;T;T

Sift4G

Benign

0.51

T;T;T

Polyphen

0.047

B;.;.

Vest4

0.63

MutPred

0.17

Gain of glycosylation at A420 (P = 0.0177);.;.;

MVP

0.33

MPC

0.52

ClinPred

0.48

GERP RS

5.3

Varity_R

0.20

gMVP

0.63

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