11-117315542-G-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_012104.6(BACE1):c.254C>T(p.Pro85Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000809 in 1,582,278 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000085 ( 0 hom. )

Consequence

BACE1
NM_012104.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.74

Variant links:

Genes affected

BACE1 (HGNC:933): (beta-secretase 1) This gene encodes a member of the peptidase A1 family of aspartic proteases. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature protease. This transmembrane protease catalyzes the first step in the formation of amyloid beta peptide from amyloid precursor protein. Amyloid beta peptides are the main constituent of amyloid beta plaques, which accumulate in the brains of human Alzheimer's disease patients. [provided by RefSeq, Nov 2015]

BACE1 links:

CEP164 (HGNC:29182): (centrosomal protein 164) This gene encodes a centrosomal protein involved in microtubule organization, DNA damage response, and chromosome segregation. The encoded protein is required for assembly of primary cilia and localizes to mature centrioles. Defects in this gene are a cause of nephronophthisis-related ciliopathies. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

CEP164 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.774

BS2

High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BACE1	NM_012104.6 link	c.254C>T	p.Pro85Leu	missense_variant	Exon 1 of 9	ENST00000313005.11	NP_036236.1	P56817-1A0A024R3D7
BACE1	NM_138972.4 link	c.254C>T	p.Pro85Leu	missense_variant	Exon 1 of 9		NP_620428.1	P56817-2A0A024R3E8
BACE1	NM_138971.4 link	c.254C>T	p.Pro85Leu	missense_variant	Exon 1 of 9		NP_620427.1	P56817-3A0A024R3D5
BACE1	NM_138973.4 link	c.254C>T	p.Pro85Leu	missense_variant	Exon 1 of 9		NP_620429.1	P56817-4A0A024R3F9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BACE1	ENST00000313005.11 link	c.254C>T	p.Pro85Leu	missense_variant	Exon 1 of 9	1	NM_012104.6	ENSP00000318585.6		P56817-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000139

AC:

AN:

216016

Hom.:

AF XY:

0.0000169

AC XY:

AN XY:

118454

show subpopulations

Gnomad AFR exome

AF:

0.0000826

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:

0.0000203

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000846

AC:

121

AN:

1430104

Hom.:

Cov.:

AF XY:

0.0000787

AC XY:

AN XY:

711276

show subpopulations

Gnomad4 AFR exome

AF:

0.0000334

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:

0.000104

Gnomad4 OTH exome

AF:

0.000101

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 19, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.254C>T (p.P85L) alteration is located in exon 1 (coding exon 1) of the BACE1 gene. This alteration results from a C to T substitution at nucleotide position 254, causing the proline (P) at amino acid position 85 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.36

BayesDel_addAF

Uncertain

0.026

BayesDel_noAF

Uncertain

0.0

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

D;T;.;.;.

Eigen

Pathogenic

0.78

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D;D;D;D

M_CAP

Benign

0.059

MetaRNN

Pathogenic

0.77

D;D;D;D;D

MetaSVM

Benign

-0.39

MutationAssessor

Pathogenic

3.1

M;.;M;M;M

PrimateAI

Pathogenic

0.83

PROVEAN

Pathogenic

-5.4

D;D;D;D;D

REVEL

Uncertain

0.41

Sift

Benign

0.089

T;T;D;T;T

Sift4G

Uncertain

0.012

D;D;D;D;D

Polyphen

1.0

D;.;P;D;D

Vest4

0.69

MVP

0.64

MPC

1.6

ClinPred

0.93

GERP RS

5.0

Varity_R

0.76

gMVP

0.66

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over