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GeneBe

21-41168527-T-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_012105.5(BACE2):c.264T>A(p.Ser88=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000273 in 1,346,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

BACE2
NM_012105.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.71
Variant links:
Genes affected
BACE2 (HGNC:934): (beta-secretase 2) This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 21-41168527-T-A is Benign according to our data. Variant chr21-41168527-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 755920.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.7 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BACE2NM_012105.5 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/9 ENST00000330333.11
BACE2NM_138991.3 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/8
BACE2NM_138992.3 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BACE2ENST00000330333.11 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/91 NM_012105.5 P1Q9Y5Z0-1
BACE2ENST00000347667.5 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/81 Q9Y5Z0-2
BACE2ENST00000328735.10 linkuse as main transcriptc.264T>A p.Ser88= synonymous_variant 1/81 Q9Y5Z0-3

Frequencies

GnomAD3 genomes
AF:
0.000198
AC:
30
AN:
151822
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000324
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000129
AC:
14
AN:
108848
Hom.:
0
AF XY:
0.0000498
AC XY:
3
AN XY:
60250
show subpopulations
Gnomad AFR exome
AF:
0.000519
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000174
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000283
AC:
338
AN:
1194944
Hom.:
0
Cov.:
32
AF XY:
0.000272
AC XY:
157
AN XY:
577910
show subpopulations
Gnomad4 AFR exome
AF:
0.0000798
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:
0.000339
Gnomad4 OTH exome
AF:
0.000126
GnomAD4 genome
AF:
0.000198
AC:
30
AN:
151822
Hom.:
0
Cov.:
31
AF XY:
0.000175
AC XY:
13
AN XY:
74130
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000324
Gnomad4 OTH
AF:
0.000479
Bravo
AF:
0.000238

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

BACE2-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesDec 03, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJun 28, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
Cadd
Benign
2.3
Dann
Benign
0.83

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: rs376619639; hg19: chr21-42540454; API