10-129877825-C-A

Variant names:

• chr10-129877825-C-A
• rs1057519520
• NM_001375380.1:c.579G>T

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PS3 PM1 PM2 PM5 PP2 PP3 PP5_Moderate

The NM_001375380.1(EBF3):​c.579G>T​(p.Lys193Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). ClinVar reports functional evidence for this variant: "SCV004031032: In vitro studies indicate that the K193N variant may reduce binding affinity to the CD79a promoter resulting in reduced transcriptional activation (Sleven et al., 2017)". Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K193E) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EBF3 NM_001375380.1 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 6.17
• Publications: 5 publications found

Genes affected

EBF3 (HGNC:19087): (EBF transcription factor 3) This gene encodes a member of the early B-cell factor (EBF) family of DNA binding transcription factors. EBF proteins are involved in B-cell differentiation, bone development and neurogenesis, and may also function as tumor suppressors. The encoded protein inhibits cell survival through the regulation of genes involved in cell cycle arrest and apoptosis, and aberrant methylation or deletion of this gene may play a role in multiple malignancies including glioblastoma multiforme and gastric carcinoma. [provided by RefSeq, Sep 2011]

EBF3 Gene-Disease associations (from GenCC):

• hypotonia, ataxia, and delayed development syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Pathogenic. The variant received 14 ACMG points.

• PS3: PS3 evidence extracted from ClinVar submissions: SCV004031032: In vitro studies indicate that the K193N variant may reduce binding affinity to the CD79a promoter resulting in reduced transcriptional activation (Sleven et al., 2017)
• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_001375380.1
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr10-129877827-T-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 267357.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP2: Missense variant in the EBF3 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 40 curated pathogenic missense variants (we use a threshold of 10). The gene has 6 curated benign missense variants. Gene score misZ: 3.6113 (above the threshold of 3.09). Trascript score misZ: 3.1409 (above the threshold of 3.09). GenCC associations: The gene is linked to hypotonia, ataxia, and delayed development syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.829
• PP5: Variant 10-129877825-C-A is Pathogenic according to our data. Variant chr10-129877825-C-A is described in ClinVar as Pathogenic. ClinVar VariationId is 375501.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001375380.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EBF3	NM_001375380.1	MANE Select	c.579G>T	p.Lys193Asn	missense	Exon 7 of 17	NP_001362309.1	H0Y3W9
	EBF3	NM_001375379.1		c.579G>T	p.Lys193Asn	missense	Exon 7 of 16	NP_001362308.1	Q9H4W6-1
	EBF3	NM_001375389.1		c.579G>T	p.Lys193Asn	missense	Exon 7 of 17	NP_001362318.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EBF3	ENST00000440978.2	TSL:3 MANE Select	c.579G>T	p.Lys193Asn	missense	Exon 7 of 17	ENSP00000387543.2	H0Y3W9
	EBF3	ENST00000368648.8	TSL:1	c.579G>T	p.Lys193Asn	missense	Exon 8 of 17	ENSP00000357637.3	Q9H4W6-2
	EBF3	ENST00000904893.1		c.579G>T	p.Lys193Asn	missense	Exon 7 of 17	ENSP00000574952.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Hypotonia, ataxia, and delayed development syndrome (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Uncertain	0.051	T
BayesDel_noAF	Benign	-0.16
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.75	D
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Benign	0.066	D
MetaRNN	Pathogenic	0.83	D
MetaSVM	Uncertain	-0.24	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		6.2
PrimateAI	Pathogenic	0.92	D
PROVEAN	Uncertain	-4.2	D
REVEL	Uncertain	0.44
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.90
MutPred		0.49		Loss of methylation at K193 (P = 0.0013)
MVP		0.73
MPC		2.5
ClinPred		1.0	D
GERP RS		5.2
Varity_R		0.86
gMVP		0.99
Mutation Taster		=2/98	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1057519520; hg19: chr10-131676089;