Genetic Variant NM_000482.4:c.1054A>T (chr11-116821004-T-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000482.4(APOA4):c.1054A>T(p.Asn352Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000379 in 1,614,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00038 ( 0 hom. )

Consequence

APOA4
NM_000482.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0470

Publications

5 publications found

Variant links:

Genes affected

APOA4 (HGNC:602): (apolipoprotein A4) Apoliprotein (apo) A-IV gene contains 3 exons separated by two introns. A sequence polymorphism has been identified in the 3'UTR of the third exon. The primary translation product is a 396-residue preprotein which after proteolytic processing is secreted its primary site of synthesis, the intestine, in association with chylomicron particles. Although its precise function is not known, apo A-IV is a potent activator of lecithin-cholesterol acyltransferase in vitro. [provided by RefSeq, Jul 2008]

APOA4 Gene-Disease associations (from GenCC):

autosomal dominant medullary cystic kidney disease with or without hyperuricemia
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

APOA4 links:

ENSG00000285513 (HGNC:):

ENSG00000285513 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.048898757).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000482.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APOA4	NM_000482.4	MANE Select	c.1054A>T	p.Asn352Tyr	missense	Exon 3 of 3	NP_000473.2	P06727

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
APOA4	ENST00000357780.5	TSL:1 MANE Select	c.1054A>T	p.Asn352Tyr	missense	Exon 3 of 3	ENSP00000350425.3	P06727
ENSG00000285513	ENST00000645414.1		n.169-16T>A		intron	N/A
ENSG00000305923	ENST00000814126.1		n.135+6664T>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.000355

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00110

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00141

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000425

AC:

107

AN:

251476

AF XY:

0.000397

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00189

Gnomad NFE exome

AF:

0.000527

Gnomad OTH exome

AF:

0.000814

GnomAD4 exome

AF:

0.000381

AC:

557

AN:

1461888

Hom.:

Cov.:

AF XY:

0.000378

AC XY:

275

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00159

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000409

AC:

455

AN:

1112012

Other (OTH)

AF:

0.000232

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

120

160

200

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000355

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

AN XY:

74368

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41460

American (AMR)

AF:

0.0000654

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00141

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000500

AC:

AN:

68040

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000467

Hom.:

Bravo

AF:

0.000276

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000321

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.12

FATHMM_MKL

Benign

0.37

M_CAP

Benign

0.038

MetaRNN

Benign

0.049

MetaSVM

Benign

-0.51

PhyloP100

-0.047

PrimateAI

Benign

0.29

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.31

Sift

Uncertain

0.010

Sift4G

Uncertain

0.026

Vest4

0.14

MVP

0.72

MPC

0.071

ClinPred

0.075

GERP RS

3.1

gMVP

0.22

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over