Genetic Variant AMBRA1:p.Arg1224Gln (chr11-46397676-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001387011.1(AMBRA1):c.3671G>A(p.Arg1224Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0001 in 1,613,036 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

AMBRA1
NM_001387011.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.394

Variant links:

Genes affected

AMBRA1 (HGNC:25990): (autophagy and beclin 1 regulator 1) Enables GTPase binding activity and ubiquitin protein ligase binding activity. Involved in macroautophagy; positive regulation of phosphatidylinositol 3-kinase activity; and response to mitochondrial depolarisation. Located in cytosol. Colocalizes with mitochondrion. Biomarker of multiple system atrophy. [provided by Alliance of Genome Resources, Apr 2022]

AMBRA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.055423766).

BS2

High AC in GnomAd4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AMBRA1	NM_001387011.1 link	c.3671G>A	p.Arg1224Gln	missense_variant	Exon 18 of 18	ENST00000683756.1	NP_001373940.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AMBRA1	ENST00000683756.1 link	c.3671G>A	p.Arg1224Gln	missense_variant	Exon 18 of 18		NM_001387011.1	ENSP00000508322.1		Q9C0C7-1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152182

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:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000137

AC:

AN:

248908

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

134700

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000942

Gnomad NFE exome

AF:

0.000259

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000999

AC:

146

AN:

1460736

Hom.:

Cov.:

AF XY:

0.000102

AC XY:

AN XY:

726558

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.000122

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.000105

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000250

Hom.:

Bravo

AF:

0.000125

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000173

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000296

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 31, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3401G>A (p.R1134Q) alteration is located in exon 19 (coding exon 18) of the AMBRA1 gene. This alteration results from a G to A substitution at nucleotide position 3401, causing the arginine (R) at amino acid position 1134 to be replaced by a glutamine (Q). 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

Benign

0.075

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.017

.;T;.;T;T;.

Eigen

Benign

-0.033

Eigen_PC

Benign

0.064

FATHMM_MKL

Benign

0.27

LIST_S2

Uncertain

0.92

D;D;D;D;D;D

M_CAP

Benign

0.069

MetaRNN

Benign

0.055

T;T;T;T;T;T

MetaSVM

Benign

-0.55

MutationAssessor

Benign

1.4

.;.;.;L;.;.

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.59

N;N;N;N;N;N

REVEL

Benign

0.13

Sift

Uncertain

0.0020

D;D;D;D;D;D

Sift4G

Benign

0.39

T;T;T;T;T;T

Polyphen

0.68

P;.;P;P;.;P

Vest4

0.12

MVP

0.37

MPC

0.60

ClinPred

0.065

GERP RS

5.3

Varity_R

0.10

gMVP

0.23

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