rs12239747

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_015331.3(NCSTN):​c.636A>G​(p.Leu212Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0626 in 1,613,942 control chromosomes in the GnomAD database, including 4,435 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.10 ( 1261 hom., cov: 32)
Exomes 𝑓: 0.059 ( 3174 hom. )

Consequence

NCSTN
NM_015331.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.827

Publications

16 publications found
Variant links:
Genes affected
NCSTN (HGNC:17091): (nicastrin) This gene encodes a type I transmembrane glycoprotein that is an integral component of the multimeric gamma-secretase complex. The encoded protein cleaves integral membrane proteins, including Notch receptors and beta-amyloid precursor protein, and may be a stabilizing cofactor required for gamma-secretase complex assembly. The cleavage of beta-amyloid precursor protein yields amyloid beta peptide, the main component of the neuritic plaque and the hallmark lesion in the brains of patients with Alzheimer's disease; however, the nature of the encoded protein's role in Alzheimer's disease is not known for certain. Mutations in this gene are associated with familial acne inversa. A pseudogene of this gene is present on chromosome 21. Alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Feb 2014]
NCSTN Gene-Disease associations (from GenCC):
  • acne inversa, familial, 1
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp

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=-0.6).
BP6
Variant 1-160351275-A-G is Benign according to our data. Variant chr1-160351275-A-G is described in ClinVar as Benign. ClinVar VariationId is 403222.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.827 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.227 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NCSTNNM_015331.3 linkc.636A>G p.Leu212Leu synonymous_variant Exon 6 of 17 ENST00000294785.10 NP_056146.1 Q92542-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NCSTNENST00000294785.10 linkc.636A>G p.Leu212Leu synonymous_variant Exon 6 of 17 1 NM_015331.3 ENSP00000294785.5 Q92542-1

Frequencies

GnomAD3 genomes
AF:
0.100
AC:
15265
AN:
151992
Hom.:
1260
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.231
Gnomad AMI
AF:
0.0242
Gnomad AMR
AF:
0.0626
Gnomad ASJ
AF:
0.0400
Gnomad EAS
AF:
0.0314
Gnomad SAS
AF:
0.0482
Gnomad FIN
AF:
0.0283
Gnomad MID
AF:
0.0728
Gnomad NFE
AF:
0.0545
Gnomad OTH
AF:
0.0866
GnomAD2 exomes
AF:
0.0600
AC:
15070
AN:
251300
AF XY:
0.0570
show subpopulations
Gnomad AFR exome
AF:
0.234
Gnomad AMR exome
AF:
0.0545
Gnomad ASJ exome
AF:
0.0401
Gnomad EAS exome
AF:
0.0247
Gnomad FIN exome
AF:
0.0272
Gnomad NFE exome
AF:
0.0540
Gnomad OTH exome
AF:
0.0551
GnomAD4 exome
AF:
0.0586
AC:
85675
AN:
1461832
Hom.:
3174
Cov.:
32
AF XY:
0.0575
AC XY:
41798
AN XY:
727226
show subpopulations
African (AFR)
AF:
0.232
AC:
7774
AN:
33476
American (AMR)
AF:
0.0557
AC:
2489
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0388
AC:
1015
AN:
26136
East Asian (EAS)
AF:
0.0364
AC:
1445
AN:
39700
South Asian (SAS)
AF:
0.0471
AC:
4065
AN:
86258
European-Finnish (FIN)
AF:
0.0300
AC:
1600
AN:
53420
Middle Eastern (MID)
AF:
0.0621
AC:
358
AN:
5762
European-Non Finnish (NFE)
AF:
0.0568
AC:
63136
AN:
1111962
Other (OTH)
AF:
0.0628
AC:
3793
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
4547
9094
13642
18189
22736
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2484
4968
7452
9936
12420
<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:
0.101
AC:
15294
AN:
152110
Hom.:
1261
Cov.:
32
AF XY:
0.0972
AC XY:
7228
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.231
AC:
9570
AN:
41472
American (AMR)
AF:
0.0625
AC:
956
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.0400
AC:
139
AN:
3472
East Asian (EAS)
AF:
0.0311
AC:
161
AN:
5174
South Asian (SAS)
AF:
0.0484
AC:
233
AN:
4810
European-Finnish (FIN)
AF:
0.0283
AC:
300
AN:
10590
Middle Eastern (MID)
AF:
0.0748
AC:
22
AN:
294
European-Non Finnish (NFE)
AF:
0.0545
AC:
3707
AN:
67992
Other (OTH)
AF:
0.0871
AC:
184
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
643
1287
1930
2574
3217
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
160
320
480
640
800
<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:
0.0731
Hom.:
1161
Bravo
AF:
0.109
Asia WGS
AF:
0.0480
AC:
167
AN:
3478
EpiCase
AF:
0.0575
EpiControl
AF:
0.0580

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Mar 29, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Frequency -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
7.0
DANN
Benign
0.36
PhyloP100
0.83
PromoterAI
0.0052
Neutral
Mutation Taster
=99/1
polymorphism (auto)

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: rs12239747; hg19: chr1-160321065; COSMIC: COSV54184952; COSMIC: COSV54184952; API