11-116820959-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000482.4(APOA4):c.1099A>G(p.Thr367Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00124 in 1,613,728 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T367S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00094 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 7 hom. )

Consequence

APOA4
NM_000482.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.211

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 links:

ENSG00000285513 (HGNC:):

ENSG00000285513 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.00393337).

BP6

Variant 11-116820959-T-C is Benign according to our data. Variant chr11-116820959-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1669462.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00128 (1864/1461854) while in subpopulation MID AF = 0.0232 (134/5768). AF 95% confidence interval is 0.02. There are 7 homozygotes in GnomAdExome4. There are 993 alleles in the male GnomAdExome4 subpopulation. Median coverage is 78. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APOA4	NM_000482.4 link	c.1099A>G	p.Thr367Ala	missense_variant	Exon 3 of 3	ENST00000357780.5	NP_000473.2	P06727

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
APOA4	ENST00000357780.5 link	c.1099A>G	p.Thr367Ala	missense_variant	Exon 3 of 3	1	NM_000482.4	ENSP00000350425.3	P06727
ENSG00000285513	ENST00000645414.1 link	n.169-61T>C		intron_variant	Intron 1 of 1
ENSG00000305923	ENST00000814126.1 link	n.135+6619T>C		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

AF:

0.000962

AC:

146

AN:

151754

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000242

Gnomad AMI

AF:

0.0242

Gnomad AMR

AF:

0.000590

Gnomad ASJ

AF:

0.00317

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0191

Gnomad NFE

AF:

0.00113

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.00125

AC:

313

AN:

251308

AF XY:

0.00142

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.000810

Gnomad ASJ exome

AF:

0.00238

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.00157

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.00128

AC:

1864

AN:

1461854

Hom.:

Cov.:

AF XY:

0.00137

AC XY:

993

AN XY:

727224

show subpopulations

African (AFR)

AF:

0.00105

AC:

AN:

33480

American (AMR)

AF:

0.000738

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00245

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00235

AC:

203

AN:

86256

European-Finnish (FIN)

AF:

0.0000749

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.0232

AC:

134

AN:

5768

European-Non Finnish (NFE)

AF:

0.00116

AC:

1295

AN:

1111994

Other (OTH)

AF:

0.00159

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

126

252

379

505

631

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000942

AC:

143

AN:

151874

Hom.:

Cov.:

AF XY:

0.000889

AC XY:

AN XY:

74210

show subpopulations

African (AFR)

AF:

0.000217

AC:

AN:

41398

American (AMR)

AF:

0.000589

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00317

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5160

South Asian (SAS)

AF:

0.00166

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10530

Middle Eastern (MID)

AF:

0.0136

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00113

AC:

AN:

67922

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000201

Hom.:

1478

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000778

AC:

ExAC

AF:

0.00135

AC:

164

EpiCase

AF:

0.00169

EpiControl

AF:

0.00237

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Jan 19, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.61

CADD

Benign

6.1

(source)

DANN

Benign

0.56

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.019

M_CAP

Benign

0.012

MetaRNN

Benign

0.0039

MetaSVM

Benign

-1.0

PhyloP100

-0.21

PrimateAI

Benign

0.25

PROVEAN

Benign

0.21

REVEL

Benign

0.053

Sift

Benign

0.41

Sift4G

Benign

0.34

Vest4

0.037

MVP

0.20

MPC

0.051

ClinPred

0.0029

GERP RS

0.012

gMVP

0.070

Mutation Taster

=99/1

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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11-116820959-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over