NM_017617.5:c.2191C>A

Variant names:

• chr9-136514526-G-T
• rs199666126
• NM_017617.5:c.2191C>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_017617.5(NOTCH1):​c.2191C>A​(p.Arg731Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000697 in 1,435,674 control chromosomes in the GnomAD database, with no homozygous occurrence. 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)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: NOTCH1 NM_017617.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.69
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• Adams-Oliver syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina
• Adams-Oliver syndrome 5

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
• NOTCH1-related AOS spectrum disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• aortic valve disease 1

  Inheritance: AD Classification: STRONG Submitted by: G2P
• connective tissue disorder

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
• leukodystrophy

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• familial bicuspid aortic valve

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

LOC124902310 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.36).
• BP7: Synonymous conserved (PhyloP=1.69 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017617.5. 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
	NOTCH1	NM_017617.5	MANE Select	c.2191C>A	p.Arg731Arg	synonymous	Exon 13 of 34	NP_060087.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOTCH1	ENST00000651671.1	MANE Select	c.2191C>A	p.Arg731Arg	synonymous	Exon 13 of 34	ENSP00000498587.1	P46531
	NOTCH1	ENST00000927794.1		c.2080C>A	p.Arg694Arg	synonymous	Exon 13 of 34	ENSP00000597853.1
	NOTCH1	ENST00000680133.1		c.2077C>A	p.Arg693Arg	synonymous	Exon 12 of 33	ENSP00000505319.1	A0A7P0T8U6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.97e-7 AC: 1 AN: 1435674 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 711950

African (AFR) AF: 0.00 AC: 0 AN: 33228

American (AMR) AF: 0.00 AC: 0 AN: 40056

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25496

East Asian (EAS) AF: 0.00 AC: 0 AN: 38774

South Asian (SAS) AF: 0.00 AC: 0 AN: 82702

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49810

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5736

European-Non Finnish (NFE) AF: 9.09e-7 AC: 1 AN: 1100428

Other (OTH) AF: 0.00 AC: 0 AN: 59444

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.36
CADD	Benign	9.0
DANN	Benign	0.62
PhyloP100		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs199666126; hg19: chr9-139408978;