chr9-136499229-C-T

Position:

• chr9-136499229-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_017617.5(NOTCH1):​c.5965G>A​(p.Asp1989Asn) variant causes a missense change involving the alteration of a conserved nucleotide. 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 Conflicting classifications of pathogenicity (no stars).

• Frequency: Genomes: not found (cov: 34)
• Consequence: NOTCH1 NM_017617.5 missense
• Clinical Significance: Conflicting classifications of pathogenicity no assertion criteria provided P:1 B:1
• Conservation: PhyloP100: 7.37

Genes affected

NOTCH1 (HGNC:7881): (notch receptor 1) This gene encodes a member of the NOTCH family of proteins. Members of this Type I 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 signaling is an evolutionarily conserved intercellular signaling pathway that regulates interactions between physically adjacent cells through binding of Notch family receptors to their cognate ligands. The encoded preproprotein is proteolytically processed in the trans-Golgi network to generate two polypeptide chains that heterodimerize to form the mature cell-surface receptor. This receptor plays a role in the development of numerous cell and tissue types. Mutations in this gene are associated with aortic valve disease, Adams-Oliver syndrome, T-cell acute lymphoblastic leukemia, chronic lymphocytic leukemia, and head and neck squamous cell carcinoma. [provided by RefSeq, Jan 2016]

NOTCH1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 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), NOTCH1. . Trascript score misZ 3.6761 (greater than threshold 3.09). GenCC has associacion of gene with familial bicuspid aortic valve, familial thoracic aortic aneurysm and aortic dissection, Adams-Oliver syndrome, connective tissue disorder, Adams-Oliver syndrome 5, aortic valve disease 1.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.803

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NOTCH1	NM_017617.5	c.5965G>A	p.Asp1989Asn	missense_variant	32/34	ENST00000651671.1	NP_060087.3
NOTCH1	XM_011518717.3	c.5242G>A	p.Asp1748Asn	missense_variant	29/31		XP_011517019.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NOTCH1	ENST00000651671.1	c.5965G>A	p.Asp1989Asn	missense_variant	32/34		NM_017617.5	ENSP00000498587.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 34

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1 Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

Adams-Oliver syndrome 5 Pathogenic:1 Benign:1

Pathogenic, no assertion criteria provided	literature only	OMIM	Sep 04, 2014	- -
Benign, no assertion criteria provided	research	University of British Columbia	Jul 23, 2015	We have since determined that the D1989N allele is carried by the proband's unaffected mother so it's status should be changed to Benign (the proband's father was affected but is deceased with no sample availability for him). Our molecular modeling reported in Stittrich, Am J Hum Genet. 2014, also determined this variant to have no effect on protein structure. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.46
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Pathogenic	0.75	D
MetaRNN	Pathogenic	0.80	D
MetaSVM	Benign	-0.73	T
MutationAssessor	Benign	-0.16	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Uncertain	-3.2	D
REVEL	Pathogenic	0.73
Sift	Benign	0.19	T
Sift4G	Benign	0.39	T
Polyphen		1.0	D
Vest4		0.59
MutPred		0.55		Gain of MoRF binding (P = 0.0545);
MVP		0.64
MPC		1.9
ClinPred		0.92	D
GERP RS		5.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.26

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: rs587777734; hg19: chr9-139393681;