12-56085070-G-T

Position:

• chr12-56085070-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001982.4(ERBB3):​c.310G>T​(p.Val104Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as other (no stars).

• Frequency: Genomes: not found (cov: 31)
• Consequence: ERBB3 NM_001982.4 missense
• Clinical Significance: - - O:1
• Conservation: PhyloP100: 4.31

Genes affected

ERBB3 (HGNC:3431): (erb-b2 receptor tyrosine kinase 3) This gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. This membrane-bound protein has a neuregulin binding domain but not an active kinase domain. It therefore can bind this ligand but not convey the signal into the cell through protein phosphorylation. However, it does form heterodimers with other EGF receptor family members which do have kinase activity. Heterodimerization leads to the activation of pathways which lead to cell proliferation or differentiation. Amplification of this gene and/or overexpression of its protein have been reported in numerous cancers, including prostate, bladder, and breast tumors. Alternate transcriptional splice variants encoding different isoforms have been characterized. One isoform lacks the intermembrane region and is secreted outside the cell. This form acts to modulate the activity of the membrane-bound form. Additional splice variants have also been reported, but they have not been thoroughly characterized. [provided by RefSeq, Jul 2008]

ERBB3 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ERBB3. . Gene score misZ 1.3904 (greater than the threshold 3.09). Trascript score misZ 3.2897 (greater than threshold 3.09). GenCC has associacion of gene with Hirschsprung disease, lethal congenital contracture syndrome 2.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ERBB3	NM_001982.4	c.310G>T	p.Val104Leu	missense_variant	3/28	ENST00000267101.8	NP_001973.2
ERBB3	NM_001005915.1	c.310G>T	p.Val104Leu	missense_variant	3/3		NP_001005915.1
ERBB3	XM_047428500.1	c.133G>T	p.Val45Leu	missense_variant	3/28		XP_047284456.1
ERBB3	XM_047428501.1	c.133G>T	p.Val45Leu	missense_variant	3/28		XP_047284457.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ERBB3	ENST00000267101.8	c.310G>T	p.Val104Leu	missense_variant	3/28	1	NM_001982.4	ENSP00000267101.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

Significance: -

Submissions summary: Other:1

Revision: -

Submissions by phenotype

Neoplasm Other:1

-, criteria provided, single submitter

clinical testing

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Jul 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.060
CADD	Uncertain	23
DANN	Benign	0.95
DEOGEN2	Uncertain	0.60	D;D;D;.;D;.
Eigen	Benign	-0.044
Eigen_PC	Benign	0.039
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.84	T;D;T;T;D;D
M_CAP	Benign	0.063	D
MetaRNN	Uncertain	0.68	D;D;D;D;D;D
MetaSVM	Benign	-0.53	T
MutationAssessor	Benign	1.2	.;.;L;L;.;.
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	-1.6	N;N;N;N;N;N
REVEL	Uncertain	0.47
Sift	Benign	0.13	T;T;T;T;T;T
Sift4G	Benign	0.27	T;T;T;D;T;T
Polyphen		0.28, 0.78	.;.;B;P;.;.
Vest4		0.52, 0.26, 0.41
MutPred		0.68		Gain of sheet (P = 0.1208);.;Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);.;.;
MVP		0.83
MPC		0.45
ClinPred		0.60	D
GERP RS		4.9
Varity_R		0.35
gMVP		0.72

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: rs1057519893; hg19: chr12-56478854; COSMIC: COSV57246387; COSMIC: COSV57246387;