chr1-226881932-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000447.3(PSEN2):ā€‹c.25A>Gā€‹(p.Ser9Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

PSEN2
NM_000447.3 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.85
Variant links:
Genes affected
PSEN2 (HGNC:9509): (presenilin 2) Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1 or PSEN2) or the amyloid precursor protein (APP). These disease-linked mutations result in increased production of the longer form of amyloid-beta (main component of amyloid deposits found in AD brains). Presenilins are postulated to regulate APP processing through their effects on gamma-secretase, an enzyme that cleaves APP. Also, it is thought that the presenilins are involved in the cleavage of the Notch receptor such that, they either directly regulate gamma-secretase activity, or themselves act are protease enzymes. Two alternatively spliced transcript variants encoding different isoforms of PSEN2 have been identified. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PSEN2NM_000447.3 linkuse as main transcriptc.25A>G p.Ser9Gly missense_variant 4/13 ENST00000366783.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PSEN2ENST00000366783.8 linkuse as main transcriptc.25A>G p.Ser9Gly missense_variant 4/135 NM_000447.3 P4P49810-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterresearchBiesecker Lab/Clinical Genomics Section, National Institutes of HealthJun 24, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.27
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.56
.;D;.;.;.;.
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.79
T;D;D;D;.;D
M_CAP
Pathogenic
0.47
D
MetaRNN
Uncertain
0.61
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
1.8
.;L;.;L;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-4.0
D;N;N;N;N;.
REVEL
Uncertain
0.56
Sift
Benign
0.12
.;T;D;T;T;.
Sift4G
Uncertain
0.034
.;D;D;D;D;D
Polyphen
0.97
.;D;.;.;.;.
Vest4
0.64, 0.63, 0.60, 0.58
MutPred
0.11
Loss of phosphorylation at S9 (P = 0.0078);Loss of phosphorylation at S9 (P = 0.0078);Loss of phosphorylation at S9 (P = 0.0078);Loss of phosphorylation at S9 (P = 0.0078);.;.;
MVP
0.97
MPC
0.75
ClinPred
0.98
D
GERP RS
5.3
Varity_R
0.21
gMVP
0.45

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs786205285; hg19: chr1-227069633; API