rs34480308

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000435.3(NOTCH3):​c.5400G>T​(p.Gly1800Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.001 in 1,614,158 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. G1800G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0054 ( 8 hom., cov: 32)
Exomes 𝑓: 0.00054 ( 10 hom. )

Consequence

NOTCH3
NM_000435.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.24

Publications

1 publications found
Variant links:
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]
NOTCH3 Gene-Disease associations (from GenCC):
  • cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae)
  • lateral meningocele syndrome
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • infantile myofibromatosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • myofibromatosis, infantile, 2
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • pulmonary arterial hypertension
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 19-15166054-C-A is Benign according to our data. Variant chr19-15166054-C-A is described in ClinVar as [Benign]. Clinvar id is 256143.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.24 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00544 (828/152272) while in subpopulation AFR AF = 0.0192 (797/41546). AF 95% confidence interval is 0.0181. There are 8 homozygotes in GnomAd4. There are 396 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 8 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NOTCH3NM_000435.3 linkc.5400G>T p.Gly1800Gly synonymous_variant Exon 30 of 33 ENST00000263388.7 NP_000426.2 Q9UM47
NOTCH3XM_005259924.5 linkc.5244G>T p.Gly1748Gly synonymous_variant Exon 29 of 32 XP_005259981.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NOTCH3ENST00000263388.7 linkc.5400G>T p.Gly1800Gly synonymous_variant Exon 30 of 33 1 NM_000435.3 ENSP00000263388.1 Q9UM47
NOTCH3ENST00000595514.1 linkn.227-539G>T intron_variant Intron 2 of 4 3 ENSP00000470661.1 M0QZN3
NOTCH3ENST00000597756.1 linkc.-88G>T upstream_gene_variant 2 ENSP00000468879.1 M0QX38

Frequencies

GnomAD3 genomes
AF:
0.00542
AC:
824
AN:
152154
Hom.:
8
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0191
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00138
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00382
GnomAD2 exomes
AF:
0.00136
AC:
341
AN:
250956
AF XY:
0.00102
show subpopulations
Gnomad AFR exome
AF:
0.0191
Gnomad AMR exome
AF:
0.000838
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000539
AC:
788
AN:
1461886
Hom.:
10
Cov.:
34
AF XY:
0.000455
AC XY:
331
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0208
AC:
695
AN:
33480
American (AMR)
AF:
0.000805
AC:
36
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1112006
Other (OTH)
AF:
0.000778
AC:
47
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
46
92
137
183
229
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
24
48
72
96
120
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00544
AC:
828
AN:
152272
Hom.:
8
Cov.:
32
AF XY:
0.00532
AC XY:
396
AN XY:
74450
show subpopulations
African (AFR)
AF:
0.0192
AC:
797
AN:
41546
American (AMR)
AF:
0.00137
AC:
21
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68014
Other (OTH)
AF:
0.00378
AC:
8
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
39
78
116
155
194
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00285
Hom.:
3
Bravo
AF:
0.00612
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jan 24, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 13, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
1.3
DANN
Benign
0.47
PhyloP100
-1.2
PromoterAI
0.011
Neutral
Mutation Taster
=83/17
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

Publications

Other links and lift over

dbSNP: rs34480308; hg19: chr19-15276865; API