rs190887884

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001283009.2(RTEL1):​c.2546G>A​(p.Gly849Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.014 in 1,550,632 control chromosomes in the GnomAD database, including 210 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G849S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.011 ( 20 hom., cov: 33)
Exomes 𝑓: 0.014 ( 190 hom. )

Consequence

RTEL1
NM_001283009.2 missense

Scores

1
17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.173

Publications

6 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: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0025148392).
BP6
Variant 20-63690937-G-A is Benign according to our data. Variant chr20-63690937-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 212073.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0107 (1637/152292) while in subpopulation NFE AF = 0.0156 (1058/67988). AF 95% confidence interval is 0.0148. There are 20 homozygotes in GnomAd4. There are 824 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 20 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RTEL1NM_001283009.2 linkc.2546G>A p.Gly849Asp missense_variant Exon 27 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.2546G>A p.Gly849Asp missense_variant Exon 27 of 35 5 NM_001283009.2 ENSP00000353332.5 Q9NZ71-6
RTEL1ENST00000508582.7 linkc.2618G>A p.Gly873Asp missense_variant Exon 27 of 35 2 ENSP00000424307.2 Q9NZ71-7
RTEL1ENST00000370018.7 linkc.2546G>A p.Gly849Asp missense_variant Exon 27 of 35 1 ENSP00000359035.3 Q9NZ71-1
RTEL1-TNFRSF6BENST00000492259.6 linkn.*148G>A non_coding_transcript_exon_variant Exon 24 of 35 5 ENSP00000457428.1 D6RA96
RTEL1-TNFRSF6BENST00000492259.6 linkn.*148G>A 3_prime_UTR_variant Exon 24 of 35 5 ENSP00000457428.1 D6RA96

Frequencies

GnomAD3 genomes
AF:
0.0108
AC:
1636
AN:
152174
Hom.:
20
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00275
Gnomad AMI
AF:
0.150
Gnomad AMR
AF:
0.00405
Gnomad ASJ
AF:
0.00634
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00497
Gnomad FIN
AF:
0.0187
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0156
Gnomad OTH
AF:
0.00860
GnomAD2 exomes
AF:
0.0102
AC:
1583
AN:
155810
AF XY:
0.0101
show subpopulations
Gnomad AFR exome
AF:
0.00279
Gnomad AMR exome
AF:
0.00460
Gnomad ASJ exome
AF:
0.00704
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0168
Gnomad NFE exome
AF:
0.0160
Gnomad OTH exome
AF:
0.00753
GnomAD4 exome
AF:
0.0143
AC:
20019
AN:
1398340
Hom.:
190
Cov.:
34
AF XY:
0.0143
AC XY:
9835
AN XY:
690034
show subpopulations
African (AFR)
AF:
0.00211
AC:
67
AN:
31732
American (AMR)
AF:
0.00480
AC:
172
AN:
35818
Ashkenazi Jewish (ASJ)
AF:
0.00705
AC:
177
AN:
25106
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36386
South Asian (SAS)
AF:
0.00655
AC:
521
AN:
79520
European-Finnish (FIN)
AF:
0.0173
AC:
826
AN:
47838
Middle Eastern (MID)
AF:
0.00956
AC:
41
AN:
4290
European-Non Finnish (NFE)
AF:
0.0163
AC:
17633
AN:
1079754
Other (OTH)
AF:
0.0101
AC:
582
AN:
57896
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
1080
2160
3239
4319
5399
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
662
1324
1986
2648
3310
<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
AF:
0.0107
AC:
1637
AN:
152292
Hom.:
20
Cov.:
33
AF XY:
0.0111
AC XY:
824
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.00274
AC:
114
AN:
41562
American (AMR)
AF:
0.00405
AC:
62
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00634
AC:
22
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00518
AC:
25
AN:
4822
European-Finnish (FIN)
AF:
0.0187
AC:
199
AN:
10632
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.0156
AC:
1058
AN:
67988
Other (OTH)
AF:
0.00851
AC:
18
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
87
173
260
346
433
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0131
Hom.:
33
Bravo
AF:
0.00985
TwinsUK
AF:
0.0178
AC:
66
ALSPAC
AF:
0.0161
AC:
62
ESP6500AA
AF:
0.00216
AC:
9
ESP6500EA
AF:
0.0136
AC:
113
ExAC
AF:
0.00934
AC:
968
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Sep 18, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jul 10, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Jan 27, 2021
Genetic Services Laboratory, University of Chicago
Significance:Benign
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 Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dyskeratosis congenita Benign:1
Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.61
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
9.9
DANN
Benign
0.79
DEOGEN2
Benign
0.22
T;.;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.17
N
LIST_S2
Benign
0.51
T;T;T;T
MetaRNN
Benign
0.0025
T;T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.2
L;.;L;.
PhyloP100
0.17
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-3.0
D;D;D;.
REVEL
Benign
0.011
Sift
Benign
0.20
T;T;T;.
Sift4G
Benign
0.071
T;T;T;T
Polyphen
0.0030
B;B;B;.
Vest4
0.26
ClinPred
0.0041
T
GERP RS
-0.13
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.097
gMVP
0.19
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs190887884; hg19: chr20-62322290; API