rs760398738

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001283009.2(RTEL1):​c.1583C>A​(p.Ala528Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000959 in 1,460,344 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A528T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

RTEL1
NM_001283009.2 missense

Scores

4
13
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.41

Publications

2 publications found
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-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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RTEL1NM_001283009.2 linkc.1583C>A p.Ala528Glu missense_variant Exon 18 of 35 ENST00000360203.11 NP_001269938.1 Q9NZ71-6R4IXY3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RTEL1ENST00000360203.11 linkc.1583C>A p.Ala528Glu missense_variant Exon 18 of 35 5 NM_001283009.2 ENSP00000353332.5 Q9NZ71-6
RTEL1ENST00000508582.7 linkc.1655C>A p.Ala552Glu missense_variant Exon 18 of 35 2 ENSP00000424307.2 Q9NZ71-7
RTEL1ENST00000370018.7 linkc.1583C>A p.Ala528Glu missense_variant Exon 18 of 35 1 ENSP00000359035.3 Q9NZ71-1
RTEL1-TNFRSF6BENST00000492259.6 linkn.1667C>A non_coding_transcript_exon_variant Exon 16 of 35 5 ENSP00000457428.1 D6RA96

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000281
AC:
7
AN:
249380
AF XY:
0.0000295
show subpopulations
Gnomad AFR exome
AF:
0.0000624
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000959
AC:
14
AN:
1460344
Hom.:
0
Cov.:
33
AF XY:
0.0000110
AC XY:
8
AN XY:
726468
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.0000447
AC:
2
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.000116
AC:
10
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52050
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111866
Other (OTH)
AF:
0.00
AC:
0
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000248
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Apr 21, 2020
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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 -

Feb 15, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dyskeratosis congenita, autosomal recessive 5;C4225346:Pulmonary fibrosis and/or bone marrow failure, Telomere-related, 3 Uncertain:1
Oct 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 552 of the RTEL1 protein (p.Ala552Glu). This variant is present in population databases (rs760398738, gnomAD 0.01%). This missense change has been observed in individual(s) with pulmonary fibrosis (PMID: 29891356). ClinVar contains an entry for this variant (Variation ID: 473906). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Dyskeratosis congenita Uncertain:1
Aug 24, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.82
BayesDel_addAF
Uncertain
0.038
T
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.30
T;.;.;.
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.90
D;D;D;D
M_CAP
Pathogenic
0.34
D
MetaRNN
Uncertain
0.67
D;D;D;D
MetaSVM
Uncertain
0.14
D
MutationAssessor
Pathogenic
3.0
M;.;M;.
PhyloP100
7.4
PrimateAI
Uncertain
0.61
T
PROVEAN
Uncertain
-2.9
D;D;D;.
REVEL
Uncertain
0.41
Sift
Uncertain
0.0070
D;D;D;.
Sift4G
Uncertain
0.026
D;D;D;D
Polyphen
0.98
D;D;P;.
Vest4
0.65
MutPred
0.29
Gain of disorder (P = 0.0233);.;Gain of disorder (P = 0.0233);.;
MVP
0.59
ClinPred
0.90
D
GERP RS
5.5
PromoterAI
-0.0047
Neutral
Varity_R
0.57
gMVP
0.83
Mutation Taster
=53/47
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs760398738; hg19: chr20-62319391; API