8-107251892-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001146.5(ANGPT1):c.1460G>A(p.Arg487His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,672 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R487C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ANGPT1
NM_001146.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.69

Variant links:

Genes affected

ANGPT1 (HGNC:484): (angiopoietin 1) This gene encodes a secreted glycoprotein that belongs to the angiopoietin family. Members of this family play important roles in vascular development and angiogenesis. All angiopoietins bind with similar affinity to an endothelial cell-specific tyrosine-protein kinase receptor. The protein encoded by this gene is a secreted glycoprotein that activates the receptor by inducing its tyrosine phosphorylation. It plays a critical role in mediating reciprocal interactions between the endothelium and surrounding matrix and mesenchyme and inhibits endothelial permeability. The protein also contributes to blood vessel maturation and stability, and may be involved in early development of the heart. Mutations in this gene are associated with hereditary angioedema. [provided by RefSeq, Aug 2020]

ANGPT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22374213).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ANGPT1	NM_001146.5 linkuse as main transcript	c.1460G>A	p.Arg487His	missense_variant	9/9	ENST00000517746.6
ANGPT1	NM_001199859.3 linkuse as main transcript	c.1457G>A	p.Arg486His	missense_variant	9/9
ANGPT1	NM_001314051.2 linkuse as main transcript	c.860G>A	p.Arg287His	missense_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANGPT1	ENST00000517746.6 linkuse as main transcript	c.1460G>A	p.Arg487His	missense_variant	9/9	1	NM_001146.5	P4	Q15389-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251338

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135834

show subpopulations

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 SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461672

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727130

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 18, 2023

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 487 of the ANGPT1 protein (p.Arg487His). This variant is present in population databases (rs774208271, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with ANGPT1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The histidine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.42

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.38

T;.;.;T

Eigen

Benign

-0.025

Eigen_PC

Benign

0.077

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.84

T;T;D;D

M_CAP

Benign

0.011

MetaRNN

Benign

0.22

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

M;.;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-3.2

D;D;D;D

REVEL

Benign

0.089

Sift

Benign

0.076

T;T;T;T

Sift4G

Uncertain

0.048

D;T;D;D

Polyphen

0.21

B;.;.;.

Vest4

0.085

MutPred

0.65

Loss of MoRF binding (P = 0.0141);.;.;.;

MVP

0.61

MPC

1.2

ClinPred

0.85

GERP RS

5.0

Varity_R

0.31

Splicing

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