Variant 12-9076794-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000014.6(A2M):c.3494A>G(p.Glu1165Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000245 in 1,613,934 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

A2M
NM_000014.6 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.883

Variant links:

Genes affected

A2M (HGNC:7): (alpha-2-macroglobulin) The protein encoded by this gene is a protease inhibitor and cytokine transporter. It uses a bait-and-trap mechanism to inhibit a broad spectrum of proteases, including trypsin, thrombin and collagenase. It can also inhibit inflammatory cytokines, and it thus disrupts inflammatory cascades. Mutations in this gene are a cause of alpha-2-macroglobulin deficiency. This gene is implicated in Alzheimer's disease (AD) due to its ability to mediate the clearance and degradation of A-beta, the major component of beta-amyloid deposits. A related pseudogene, which is also located on the p arm of chromosome 12, has been identified. [provided by RefSeq, Nov 2016]

A2M links:

KLRG1 (HGNC:):

KLRG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04578674).

BP6

Variant 12-9076794-T-C is Benign according to our data. Variant chr12-9076794-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3058150.Status of the report is no_assertion_criteria_provided, 0 stars.

BS2

High AC in GnomAd4 at 45 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
A2M	NM_000014.6 linkuse as main transcript	c.3494A>G	p.Glu1165Gly	missense_variant	28/36	ENST00000318602.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
A2M	ENST00000318602.12 linkuse as main transcript	c.3494A>G	p.Glu1165Gly	missense_variant	28/36	1	NM_000014.6	P1
A2M	ENST00000543436.2 linkuse as main transcript	n.452-8982A>G		intron_variant, non_coding_transcript_variant		5
A2M	ENST00000545828.1 linkuse as main transcript	n.349-4073A>G		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.000296

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000465

AC:

116

AN:

249354

Hom.:

AF XY:

0.000414

AC XY:

AN XY:

135262

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00184

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00195

Gnomad NFE exome

AF:

0.000283

Gnomad OTH exome

AF:

0.000495

GnomAD4 exome

AF:

0.000239

AC:

350

AN:

1461694

Hom.:

Cov.:

AF XY:

0.000239

AC XY:

174

AN XY:

727134

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00292

Gnomad4 SAS exome

AF:

0.000197

Gnomad4 FIN exome

AF:

0.00180

Gnomad4 NFE exome

AF:

0.0000917

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000296

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.000390

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00174

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00189

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000227

Hom.:

Bravo

AF:

0.000128

ExAC

AF:

0.000453

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

A2M-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 15, 2022

This 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). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

Eigen

Benign

0.17

Eigen_PC

Benign

-0.040

FATHMM_MKL

Benign

0.38

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.039

MetaRNN

Benign

0.046

MetaSVM

Benign

-0.74

MutationAssessor

Pathogenic

3.8

MutationTaster

Benign

1.0

PrimateAI

Benign

0.30

PROVEAN

Pathogenic

-6.5

REVEL

Benign

0.15

Sift

Uncertain

0.017

Sift4G

Benign

0.23

Polyphen

1.0

Vest4

0.23

MVP

0.83

MPC

0.50

ClinPred

0.24

GERP RS

5.1

Varity_R

0.54

gMVP

0.34

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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