chr19-15160960-G-C

Position:

• chr19-15160960-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000435.3(NOTCH3):​c.6668C>G​(p.Ala2223Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 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. A2223V) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NOTCH3 NM_000435.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.20

Genes affected

NOTCH3 (HGNC:7883): (notch receptor 3) This gene encodes the third discovered human homologue of the Drosophilia melanogaster type I membrane protein notch. In Drosophilia, notch interaction with its cell-bound ligands (delta, serrate) establishes an intercellular signalling pathway that plays a key role in neural development. Homologues of the notch-ligands have also been identified in human, but precise interactions between these ligands and the human notch homologues remains to be determined. Mutations in NOTCH3 have been identified as the underlying cause of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12555292).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOTCH3	NM_000435.3	c.6668C>G	p.Ala2223Gly	missense_variant	33/33	ENST00000263388.7
NOTCH3	XM_005259924.5	c.6512C>G	p.Ala2171Gly	missense_variant	32/32

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH3	ENST00000263388.7	c.6668C>G	p.Ala2223Gly	missense_variant	33/33	1	NM_000435.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1426998 Hom.: 0 Cov.: 51 AF XY: 0.00 AC XY: 0 AN XY: 706834

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

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.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.086
BayesDel_addAF	Benign	-0.045	T
BayesDel_noAF	Benign	-0.30
CADD	Benign	7.3
DANN	Benign	0.94
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.94
Eigen_PC	Benign	-0.96
FATHMM_MKL	Benign	0.44	N
LIST_S2	Benign	0.68	T
M_CAP	Pathogenic	0.36	D
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.72	T
MutationAssessor	Benign	0.90	L
MutationTaster	Benign	1.0	P
PrimateAI	Uncertain	0.62	T
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.17
Sift	Benign	0.30	T
Sift4G	Benign	0.11	T
Polyphen		0.080	B
Vest4		0.092
MutPred		0.13		Gain of relative solvent accessibility (P = 0.0507);
MVP		0.84
MPC		0.57
ClinPred		0.15	T
GERP RS		0.43
Varity_R		0.10
gMVP		0.18

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: rs1044009; hg19: chr19-15271771;