chr1-119915827-C-G

Variant names:

• chr1-119915827-C-G
• rs387906748
• NM_024408.4:c.6895G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_024408.4(NOTCH2):​c.6895G>C​(p.Glu2299Gln) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: NOTCH2 NM_024408.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.55
• Publications: 0 publications found

Genes affected

NOTCH2 (HGNC:7882): (notch receptor 2) This gene encodes a member of the Notch family. Members of this Type 1 transmembrane protein family share structural characteristics including an extracellular domain consisting of multiple epidermal growth factor-like (EGF) repeats, and an intracellular domain consisting of multiple, different domain types. Notch family members play a role in a variety of developmental processes by controlling cell fate decisions. The Notch signaling network is an evolutionarily conserved intercellular signaling pathway which regulates interactions between physically adjacent cells. In Drosophilia, notch interaction with its cell-bound ligands (delta, serrate) establishes an intercellular signaling pathway that plays a key role in development. Homologues of the notch-ligands have also been identified in human, but precise interactions between these ligands and the human notch homologues remain to be determined. This protein is cleaved in the trans-Golgi network, and presented on the cell surface as a heterodimer. This protein functions as a receptor for membrane bound ligands, and may play a role in vascular, renal and hepatic development. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2011]

NOTCH2 Gene-Disease associations (from GenCC):

• acroosteolysis dominant type

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P, Orphanet
• Alagille syndrome

  Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: Illumina, ClinGen
• Alagille syndrome due to a NOTCH2 point mutation

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24874467).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024408.4. 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
	NOTCH2	NM_024408.4	MANE Select	c.6895G>C	p.Glu2299Gln	missense	Exon 34 of 34	NP_077719.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOTCH2	ENST00000256646.7	TSL:1 MANE Select	c.6895G>C	p.Glu2299Gln	missense	Exon 34 of 34	ENSP00000256646.2
	NOTCH2	ENST00000924185.1		c.6757G>C	p.Glu2253Gln	missense	Exon 34 of 34	ENSP00000594244.1
	NOTCH2	ENST00000924186.1		c.6622G>C	p.Glu2208Gln	missense	Exon 32 of 32	ENSP00000594245.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.0079	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.16	T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.052	D
MetaRNN	Benign	0.25	T
MetaSVM	Benign	-0.46	T
MutationAssessor	Benign	0.69	N
PhyloP100		2.5
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-0.22	N
REVEL	Uncertain	0.29
Sift	Benign	0.29	T
Sift4G	Benign	0.46	T
Polyphen		0.90	P
Vest4		0.11
MutPred		0.088		Loss of solvent accessibility (P = 0.0371)
MVP		0.61
MPC		0.40
ClinPred		0.40	T
GERP RS		5.5
Varity_R		0.12
gMVP		0.49
Mutation Taster		=68/32	polymorphism

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

Other links and lift over

dbSNP: rs387906748; hg19: chr1-120458450;