Genetic Variant ANGPTL2:p.Thr268Asn (chr9-127107929-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_012098.3(ANGPTL2):c.803C>A(p.Thr268Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000261 in 1,533,006 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T268I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

ANGPTL2
NM_012098.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.76

Publications

0 publications found

Variant links:

Genes affected

ANGPTL2 (HGNC:490): (angiopoietin like 2) Angiopoietins are members of the vascular endothelial growth factor family and the only known growth factors largely specific for vascular endothelium. Angiopoietin-1, angiopoietin-2, and angiopoietin-4 participate in the formation of blood vessels. ANGPTL2 protein is a secreted glycoprotein with homology to the angiopoietins and may exert a function on endothelial cells through autocrine or paracrine action. [provided by RefSeq, Jul 2008]

ANGPTL2 links:

RALGPS1 (HGNC:16851): (Ral GEF with PH domain and SH3 binding motif 1) Enables guanyl-nucleotide exchange factor activity. Involved in regulation of Ral protein signal transduction. Predicted to be located in cytoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

RALGPS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANGPTL2	NM_012098.3 link	c.803C>A	p.Thr268Asn	missense_variant	Exon 2 of 5	ENST00000373425.8	NP_036230.1	Q9UKU9-1A0A024R868
RALGPS1	NM_014636.3 link	c.610+38573G>T		intron_variant	Intron 8 of 18	ENST00000259351.10	NP_055451.1	Q5JS13-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANGPTL2	ENST00000373425.8 link	c.803C>A	p.Thr268Asn	missense_variant	Exon 2 of 5	1	NM_012098.3	ENSP00000362524.3		Q9UKU9-1
RALGPS1	ENST00000259351.10 link	c.610+38573G>T		intron_variant	Intron 8 of 18	1	NM_014636.3	ENSP00000259351.5		Q5JS13-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

195434

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.24e-7

AC:

AN:

1380786

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

675684

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31280

American (AMR)

AF:

0.00

AC:

AN:

35516

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

21130

East Asian (EAS)

AF:

0.00

AC:

AN:

38758

South Asian (SAS)

AF:

0.00

AC:

AN:

73258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50546

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5296

European-Non Finnish (NFE)

AF:

9.36e-7

AC:

AN:

1068096

Other (OTH)

AF:

0.00

AC:

AN:

56906

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41446

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.00000829

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.056

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Uncertain

0.97

DEOGEN2

Benign

0.25

Eigen

Benign

0.10

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.0091

MetaRNN

Uncertain

0.47

MetaSVM

Benign

-1.0

MutationAssessor

Benign

2.0

PhyloP100

9.8

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.34

REVEL

Benign

0.17

Sift

Benign

0.18

Sift4G

Benign

0.19

Polyphen

0.0090

Vest4

0.76

MutPred

0.21

Loss of glycosylation at T268 (P = 0.0046);

MVP

0.59

MPC

0.69

ClinPred

0.53

GERP RS

5.3

Varity_R

0.096

gMVP

0.49

Mutation Taster

=13/87

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over