X-116172778-T-C

Position:

• chrX-116172778-T-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_000686.5(AGTR2):​c.498T>C​(p.Leu166=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00078 in 1,209,232 control chromosomes in the GnomAD database, including 9 homozygotes. There are 241 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0039 (6 hom., 99 hem., cov: 23)
  • Exomes 𝑓: 0.00046 (3 hom. 142 hem.)
• Consequence: AGTR2 NM_000686.5 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.844

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 Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP6: Variant X-116172778-T-C is Benign according to our data. Variant chrX-116172778-T-C is described in ClinVar as [Benign]. Clinvar id is 590238.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.844 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000464 (509/1097690) while in subpopulation AFR AF= 0.0164 (432/26379). AF 95% confidence interval is 0.0151. There are 3 homozygotes in gnomad4_exome. There are 142 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 6 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AGTR2	NM_000686.5	c.498T>C	p.Leu166=	synonymous_variant	3/3	ENST00000371906.5
AGTR2	NM_001385624.1	c.498T>C	p.Leu166=	synonymous_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AGTR2	ENST00000371906.5	c.498T>C	p.Leu166=	synonymous_variant	3/3	1	NM_000686.5	P1
AGTR2	ENST00000681852.1	c.498T>C	p.Leu166=	synonymous_variant	2/2			P1
AGTR2	ENST00000680409.1	n.966T>C		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes AF: 0.00388 AC: 433 AN: 111486 Hom.: 6 Cov.: 23 AF XY: 0.00291 AC XY: 98 AN XY: 33702

Gnomad AFR AF: 0.0131

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00287

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: 0.00

Gnomad OTH AF: 0.00133

GnomAD3 exomes AF: 0.00148 AC: 271 AN: 183321 Hom.: 3 AF XY: 0.000826 AC XY: 56 AN XY: 67821

Gnomad AFR exome AF: 0.0197

Gnomad AMR exome AF: 0.000365

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000524

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000221

GnomAD4 exome AF: 0.000464 AC: 509 AN: 1097690 Hom.: 3 Cov.: 31 AF XY: 0.000391 AC XY: 142 AN XY: 363120

Gnomad4 AFR exome AF: 0.0164

Gnomad4 AMR exome AF: 0.000710

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000369

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000475

Gnomad4 OTH exome AF: 0.000977

GnomAD4 genome AF: 0.00389 AC: 434 AN: 111542 Hom.: 6 Cov.: 23 AF XY: 0.00293 AC XY: 99 AN XY: 33768

Gnomad4 AFR AF: 0.0131

Gnomad4 AMR AF: 0.00287

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00132

Alfa AF: 0.00240 Hom.: 18

Bravo AF: 0.00495

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 06, 2016

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 31, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	1.4
DANN	Benign	0.74

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

Other links and lift over

dbSNP: rs5190; hg19: chrX-115304031;