Genetic Variant APMAP:p.Asp167Asn (chr20-24971499-C-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_020531.3(APMAP):c.499G>A(p.Asp167Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000234 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

APMAP
NM_020531.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.84

Variant links:

Genes affected

APMAP (HGNC:13238): (adipocyte plasma membrane associated protein) Enables arylesterase activity. Predicted to be involved in biosynthetic process. Located in cell surface and membrane. [provided by Alliance of Genome Resources, Apr 2022]

APMAP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.894

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APMAP	NM_020531.3 link	c.499G>A	p.Asp167Asn	missense_variant	Exon 5 of 9	ENST00000217456.3	NP_065392.1	Q9HDC9-1
APMAP	XM_005260763.4 link	c.499G>A	p.Asp167Asn	missense_variant	Exon 5 of 8		XP_005260820.1	Q9HDC9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APMAP	ENST00000217456.3 link	c.499G>A	p.Asp167Asn	missense_variant	Exon 5 of 9	1	NM_020531.3	ENSP00000217456.2		Q9HDC9-1
APMAP	ENST00000451442.5 link	c.451G>A	p.Asp151Asn	missense_variant	Exon 5 of 10	5		ENSP00000395874.1		H0Y512

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000127

AC:

AN:

251484

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

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:

0.000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000246

AC:

360

AN:

1461840

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

156

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000308

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000112

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000229

Hom.:

Bravo

AF:

0.000113

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000107

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 02, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.499G>A (p.D167N) alteration is located in exon 5 (coding exon 5) of the APMAP gene. This alteration results from a G to A substitution at nucleotide position 499, causing the aspartic acid (D) at amino acid position 167 to be replaced by an asparagine (N). 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

Pathogenic

0.82

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.23

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.095

MetaRNN

Pathogenic

0.89

MetaSVM

Benign

-0.38

MutationAssessor

Pathogenic

3.2

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-4.6

REVEL

Uncertain

0.52

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.96

MVP

0.69

MPC

0.81

ClinPred

0.93

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.78

gMVP

0.93

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