rs1057519787

chr17-39711952-G-Achr17-39711952-G-Cchr17-39711952-G-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PM5 PP2 PP3_Moderate PP5

The NM_004448.4(ERBB2):c.926G>A(p.Gly309Glu) 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 Likely pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G309A) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ERBB2 NM_004448.4 missense
• Clinical Significance: Pathogenic/Likely pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 6.83

Genes affected

ERBB2 (HGNC:3430): (erb-b2 receptor tyrosine kinase 2) This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PM1: In a disulfide_bond (size 12) in uniprot entity ERBB2_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_004448.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr17-39711952-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376205.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP2: Missense variant where missense usually causes diseases, ERBB2
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.866
• PP5: Variant 17-39711952-G-A is Pathogenic according to our data. Variant chr17-39711952-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376138.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ERBB2	NM_004448.4	c.926G>A	p.Gly309Glu	missense_variant	8/27	ENST00000269571.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ERBB2	ENST00000269571.10	c.926G>A	p.Gly309Glu	missense_variant	8/27	1	NM_004448.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Lung adenocarcinoma Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

Dec 26, 2014

- -

Malignant tumor of urinary bladder Pathogenic:1

Pathogenic, no assertion criteria provided

research

Laboratory of Urology, Hospital Clinic de Barcelona

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- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
Cadd	Uncertain	26
Dann	Uncertain	0.99
Eigen	Pathogenic	0.80
Eigen_PC	Pathogenic	0.76
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Uncertain	0.26	D
MetaRNN	Pathogenic	0.87	D;D;D;D;D;D;D
MetaSVM	Uncertain	0.072	D
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.76	T
Sift4G	Uncertain	0.0090	D;T;D;D;D;D;D
Polyphen		1.0, 1.0	.;D;.;D;D;.;D
Vest4		0.89
MutPred		0.63		.;.;.;.;.;Gain of solvent accessibility (P = 0.1683);Gain of solvent accessibility (P = 0.1683);
MVP		0.75
MPC		1.1
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.91
gMVP		0.83

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

Other links and lift over

dbSNP: rs1057519787; hg19: chr17-37868205; COSMIC: COSV54070990; COSMIC: COSV54070990;