rs746411863

Positions:

chr20-63667494-A-T

Variant summary

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

The NM_001283009.2(RTEL1):c.640A>T(p.Asn214Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000044 in 1,613,720 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 (★★). Synonymous variant affecting the same amino acid position (i.e. N214N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

RTEL1
NM_001283009.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 3.96

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:):

RTEL1-TNFRSF6B 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=0.07618928).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RTEL1	NM_001283009.2 linkuse as main transcript	c.640A>T	p.Asn214Tyr	missense_variant	8/35	ENST00000360203.11
RTEL1-TNFRSF6B	NR_037882.1 linkuse as main transcript	n.1467A>T		non_coding_transcript_exon_variant	8/38

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RTEL1	ENST00000360203.11 linkuse as main transcript	c.640A>T	p.Asn214Tyr	missense_variant	8/35	5	NM_001283009.2	A2	Q9NZ71-6

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.00

GnomAD3 exomes

AF:

0.000251

AC:

AN:

251484

Hom.:

AF XY:

0.000199

AC XY:

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00182

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000438

AC:

AN:

1461680

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00143

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152040

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74250

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000458

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:

0.00

Bravo

AF:

0.000121

ExAC

AF:

0.000231

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

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

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Sep 06, 2022	This sequence change replaces asparagine, which is neutral and polar, with tyrosine, which is neutral and polar, at codon 214 of the RTEL1 protein (p.Asn214Tyr). This variant is present in population databases (rs746411863, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with RTEL1-related conditions. This variant is also known as NM_032957.4:c.712A>T (p.Asn238Tyr). ClinVar contains an entry for this variant (Variation ID: 565342). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago	Mar 30, 2021	RTEL1 NM_032957.4 exon 8 p.Asn238Tyr (c.712A>T): This variant has not been reported in the literature, but it is present in 0.2% (62/34418) of Latino alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/variant/20-62298847-A-T). Computational predictive tools suggest that this variant may impact the protein, although evolutionary conservation is unclear. In summary, data on this variant are insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jun 28, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Dyskeratosis congenita, autosomal dominant 1

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Natera, Inc.

Jun 12, 2020

- -

Dyskeratosis congenita

Uncertain:1

Uncertain significance, criteria provided, single submitter

curation

Sema4, Sema4

Jan 06, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.63

D;.;.;.

Eigen

Benign

0.17

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.92

D;D;D;D

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.076

T;T;T;T

MetaSVM

Benign

-0.37

MutationAssessor

Benign

0.55

N;.;N;.

MutationTaster

Benign

0.58

D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-3.5

D;D;D;D

REVEL

Uncertain

0.30

Sift

Benign

0.041

D;D;D;D

Sift4G

Uncertain

0.019

D;D;D;D

Polyphen

0.99

D;D;D;.

Vest4

0.62

MutPred

0.51

Gain of helix (P = 0.132);.;Gain of helix (P = 0.132);.;

MVP

0.63

ClinPred

0.24

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.18

gMVP

0.33

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