rs377442517

Variant names:

• chr8-107251871-C-G
• rs377442517
• NM_001146.5:c.1481G>C

Your query was ambiguous. Multiple possible variants found:

• chr8-107251871-C-G
• chr8-107251871-C-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001146.5(ANGPT1):​c.1481G>C​(p.Arg494Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. R494Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ANGPT1 NM_001146.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.91
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• glaucoma

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• primary congenital glaucoma

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• angioedema, hereditary, 5

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.962

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001146.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANGPT1	NM_001146.5	MANE Select	c.1481G>C	p.Arg494Pro	missense	Exon 9 of 9	NP_001137.2
	ANGPT1	NM_001199859.3		c.1478G>C	p.Arg493Pro	missense	Exon 9 of 9	NP_001186788.1	Q15389-2
	ANGPT1	NM_001314051.2		c.881G>C	p.Arg294Pro	missense	Exon 8 of 8	NP_001300980.1	B4DTQ9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANGPT1	ENST00000517746.6	TSL:1 MANE Select	c.1481G>C	p.Arg494Pro	missense	Exon 9 of 9	ENSP00000428340.1	Q15389-1
	ANGPT1	ENST00000297450.7	TSL:1	c.1478G>C	p.Arg493Pro	missense	Exon 9 of 9	ENSP00000297450.3	Q15389-2
	ANGPT1	ENST00000520734.5	TSL:2	c.881G>C	p.Arg294Pro	missense	Exon 8 of 8	ENSP00000430750.1	B4DTQ9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.39
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.55	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.20	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Pathogenic	0.87	D
MutationAssessor	Pathogenic	4.4	H
PhyloP100		7.9
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-6.5	D
REVEL	Pathogenic	0.93
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.82
MutPred		0.87		Loss of MoRF binding (P = 0.0132)
MVP		0.88
MPC		2.5
ClinPred		1.0	D
GERP RS		5.9
Varity_R		0.96
Mutation Taster		=17/83	disease causing

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs377442517; hg19: chr8-108264099;