chr20-63695145-G-A

Position:

chr20-63695145-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_001283009.2(RTEL1):c.3423G>A(p.Pro1141Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00251 in 1,612,370 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0020 ( 3 hom., cov: 33)

Exomes 𝑓: 0.0026 ( 6 hom. )

Consequence

RTEL1
NM_001283009.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:8

Conservation

PhyloP100: -2.23

Variant links:

Genes affected

RTEL1 (HGNC:15888): (regulator of telomere elongation helicase 1) This gene encodes a DNA helicase which functions in the stability, protection and elongation of telomeres and interacts with proteins in the shelterin complex known to protect telomeres during DNA replication. Mutations in this gene have been associated with dyskeratosis congenita and Hoyerall-Hreidarsson syndrome. Read-through transcription of this gene into the neighboring downstream gene, which encodes tumor necrosis factor receptor superfamily, member 6b, generates a non-coding transcript. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2013]

RTEL1 links:

RTEL1-TNFRSF6B (HGNC:44095): (RTEL1-TNFRSF6B readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring RTEL1 (regulator of telomere elongation helicase 1) and TNFRSF6B (tumor necrosis factor receptor superfamily, member 6b, decoy) genes on chromosome 20. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

RTEL1-TNFRSF6B links:

RTEL1 (HGNC:):

RTEL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BP6

Variant 20-63695145-G-A is Benign according to our data. Variant chr20-63695145-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 540953.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-63695145-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-2.23 with no splicing effect.

BS2

High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RTEL1	NM_001283009.2 linkuse as main transcript	c.3423G>A	p.Pro1141Pro	synonymous_variant	33/35	ENST00000360203.11	NP_001269938.1	Q9NZ71-6R4IXY3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
RTEL1	ENST00000360203.11 linkuse as main transcript	c.3423G>A	p.Pro1141Pro	synonymous_variant	33/35	5	NM_001283009.2	ENSP00000353332.5	Q9NZ71-6
RTEL1	ENST00000508582.7 linkuse as main transcript	c.3495G>A	p.Pro1165Pro	synonymous_variant	33/35	2		ENSP00000424307.2	Q9NZ71-7
RTEL1	ENST00000370018.7 linkuse as main transcript	c.3423G>A	p.Pro1141Pro	synonymous_variant	33/35	1		ENSP00000359035.3	Q9NZ71-1
RTEL1-TNFRSF6B	ENST00000492259.6 linkuse as main transcript	n.*1025G>A		non_coding_transcript_exon_variant	30/35	5		ENSP00000457428.1	D6RA96
RTEL1-TNFRSF6B	ENST00000492259.6 linkuse as main transcript	n.*1025G>A		3_prime_UTR_variant	30/35	5		ENSP00000457428.1	D6RA96

Frequencies

GnomAD3 genomes

AF:

0.00200

AC:

304

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000652

Gnomad AMI

AF:

0.0318

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00169

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00325

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00156

AC:

384

AN:

245372

Hom.:

AF XY:

0.00159

AC XY:

213

AN XY:

133704

show subpopulations

Gnomad AFR exome

AF:

0.000189

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.000294

Gnomad FIN exome

AF:

0.00112

Gnomad NFE exome

AF:

0.00302

Gnomad OTH exome

AF:

0.00116

GnomAD4 exome

AF:

0.00257

AC:

3749

AN:

1460130

Hom.:

Cov.:

AF XY:

0.00252

AC XY:

1832

AN XY:

726350

show subpopulations

Gnomad4 AFR exome

AF:

0.000627

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.000255

Gnomad4 FIN exome

AF:

0.00141

Gnomad4 NFE exome

AF:

0.00317

Gnomad4 OTH exome

AF:

0.00144

GnomAD4 genome

AF:

0.00200

AC:

304

AN:

152240

Hom.:

Cov.:

AF XY:

0.00195

AC XY:

145

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.000650

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00169

Gnomad4 NFE

AF:

0.00325

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00235

Hom.:

Bravo

AF:

0.00193

EpiCase

AF:

0.00169

EpiControl

AF:

0.00290

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Likely benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jan 01, 2024	RTEL1: BP4, BP7 -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

Dyskeratosis congenita

Benign:2

Benign, criteria provided, single submitter	curation	Sema4, Sema4	Aug 25, 2020	- -
Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -

Immunodeficiency

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Institute of Human Genetics, University of Wuerzburg

- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 14, 2022

This alteration is classified as likely 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. -

Dyskeratosis congenita, autosomal recessive 5;C4225346:Pulmonary fibrosis and/or bone marrow failure, Telomere-related, 3

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

2.3

DANN

Benign

0.70

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

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