Genetic Variant APOD:p.Pro102Ala (chr3-195571307-G-C) – ACMG Classification: Benign (-8 pts)

Variant summary

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

The NM_001647.4(APOD):c.304C>G(p.Pro102Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00028 in 1,614,100 control chromosomes in the GnomAD database, including 3 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00028 ( 3 hom. )

Consequence

APOD
NM_001647.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.40

Variant links:

Genes affected

APOD (HGNC:612): (apolipoprotein D) This gene encodes a component of high density lipoprotein that has no marked similarity to other apolipoprotein sequences. It has a high degree of homology to plasma retinol-binding protein and other members of the alpha 2 microglobulin protein superfamily of carrier proteins, also known as lipocalins. This glycoprotein is closely associated with the enzyme lecithin:cholesterol acyltransferase - an enzyme involved in lipoprotein metabolism. [provided by RefSeq, Aug 2008]

APOD 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=0.01632744).

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APOD	NM_001647.4 link	c.304C>G	p.Pro102Ala	missense_variant	Exon 4 of 5	ENST00000343267.8	NP_001638.1	P05090

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APOD	ENST00000343267.8 link	c.304C>G	p.Pro102Ala	missense_variant	Exon 4 of 5	1	NM_001647.4	ENSP00000345179.3		P05090

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00260

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000221

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000505

AC:

127

AN:

251488

Hom.:

AF XY:

0.000581

AC XY:

AN XY:

135918

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00377

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00144

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000272

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000282

AC:

412

AN:

1461868

Hom.:

Cov.:

AF XY:

0.000344

AC XY:

250

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00341

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00132

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000137

Gnomad4 OTH exome

AF:

0.000563

GnomAD4 genome

AF:

0.000263

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74438

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00260

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00145

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000221

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000558

Hom.:

Bravo

AF:

0.000230

ExAC

AF:

0.000379

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000327

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 13, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.304C>G (p.P102A) alteration is located in exon 4 (coding exon 3) of the APOD gene. This alteration results from a C to G substitution at nucleotide position 304, causing the proline (P) at amino acid position 102 to be replaced by an alanine (A). 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

0.18

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.28

T;.;T

Eigen

Benign

0.13

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.69

T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.016

T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.3

M;.;.

PrimateAI

Benign

0.42

PROVEAN

Pathogenic

-6.7

D;D;D

REVEL

Benign

0.12

Sift

Benign

0.10

T;T;D

Sift4G

Benign

0.11

T;.;.

Polyphen

0.061

B;.;.

Vest4

0.33

MVP

0.50

MPC

0.13

ClinPred

0.12

GERP RS

4.4

Varity_R

0.57

gMVP

0.47

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