X-116172786-G-T

Position:

• chrX-116172786-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000686.5(AGTR2):​c.506G>T​(p.Cys169Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 23)
• Consequence: AGTR2 NM_000686.5 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 1.67

Genes affected

AGTR2 (HGNC:338): (angiotensin II receptor type 2) The protein encoded by this gene belongs to the G-protein coupled receptor 1 family, and functions as a receptor for angiotensin II. It is an intergral membrane protein that is highly expressed in fetus and in neonates, but scantily in adult tissues, except brain, adrenal medulla, and atretic ovary. This receptor has been shown to mediate programmed cell death and this apoptotic function may play an important role in developmental biology and pathophysiology. Mutations in this gene are been associated with X-linked cognitive disability. Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) and SARS-CoV-2 infection results in down-regulation of angiotensin converting enzyme-2 (ACE2) receptors, the effects of which, triggers serious inflammatory lesions in the tissues involved, primarily in the lungs. The inflammatory reaction appears to be mediated by angiotensin II derivatives, including the angiotensin AT2 receptor which has been found to be upregulated in bronchoalveolar lavage samples from Coronavirus disease 2019 (COVID19) patients. [provided by RefSeq, Jul 2020]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19872627).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AGTR2	NM_000686.5	c.506G>T	p.Cys169Phe	missense_variant	3/3	ENST00000371906.5
AGTR2	NM_001385624.1	c.506G>T	p.Cys169Phe	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AGTR2	ENST00000371906.5	c.506G>T	p.Cys169Phe	missense_variant	3/3	1	NM_000686.5	P1
AGTR2	ENST00000681852.1	c.506G>T	p.Cys169Phe	missense_variant	2/2			P1
AGTR2	ENST00000680409.1	n.974G>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 23

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

AGTR2-related disorder Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 18, 2023

The AGTR2 c.506G>T variant is predicted to result in the amino acid substitution p.Cys169Phe. To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	16
DANN	Benign	0.93
DEOGEN2	Benign	0.14	T
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.0060	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.25	N
MutationTaster	Benign	0.98	D
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	0.15	N
REVEL	Benign	0.18
Sift	Benign	0.14	T
Sift4G	Benign	0.57	T
Polyphen		0.035	B
Vest4		0.31
MutPred		0.51		Loss of catalytic residue at C169 (P = 0.3117);
MVP		0.95
MPC		0.43
ClinPred		0.39	T
GERP RS		4.6
Varity_R		0.37
gMVP		0.70

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-115304039;