chr12-9076832-A-G

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The ENST00000318602.12(A2M):ā€‹c.3456T>Cā€‹(p.Tyr1152=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00026 in 1,614,060 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.0014 ( 1 hom., cov: 32)
Exomes š‘“: 0.00014 ( 0 hom. )

Consequence

A2M
ENST00000318602.12 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.210
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.63).
BP6
Variant 12-9076832-A-G is Benign according to our data. Variant chr12-9076832-A-G is described in ClinVar as [Benign]. Clinvar id is 781242.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.21 with no splicing effect.
BS2
High AC in GnomAd4 at 216 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
A2MNM_000014.6 linkuse as main transcriptc.3456T>C p.Tyr1152= synonymous_variant 28/36 ENST00000318602.12 NP_000005.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
A2MENST00000318602.12 linkuse as main transcriptc.3456T>C p.Tyr1152= synonymous_variant 28/361 NM_000014.6 ENSP00000323929 P1
A2MENST00000543436.2 linkuse as main transcriptn.452-9020T>C intron_variant, non_coding_transcript_variant 5
A2MENST00000545828.1 linkuse as main transcriptn.349-4111T>C intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.00142
AC:
216
AN:
152166
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000852
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:
0.00
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000392
AC:
98
AN:
249840
Hom.:
0
AF XY:
0.000318
AC XY:
43
AN XY:
135374
show subpopulations
Gnomad AFR exome
AF:
0.00554
Gnomad AMR exome
AF:
0.000261
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:
0.00
Gnomad OTH exome
AF:
0.000329
GnomAD4 exome
AF:
0.000139
AC:
203
AN:
1461776
Hom.:
0
Cov.:
31
AF XY:
0.000116
AC XY:
84
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.00490
Gnomad4 AMR exome
AF:
0.000313
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:
0.00000270
Gnomad4 OTH exome
AF:
0.000364
GnomAD4 genome
AF:
0.00142
AC:
216
AN:
152284
Hom.:
1
Cov.:
32
AF XY:
0.00146
AC XY:
109
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00481
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000850
Hom.:
0
Bravo
AF:
0.00165
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 04, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.63
CADD
Benign
4.9
DANN
Benign
0.47
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs372050343; hg19: chr12-9229428; COSMIC: COSV59387215; COSMIC: COSV59387215; API