rs386833851

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_004260.4(RECQL4):​c.2476C>T​(p.Arg826*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000363 in 1,541,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R826R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000047 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

RECQL4
NM_004260.4 stop_gained

Scores

2
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 1.40

Publications

4 publications found
Variant links:
Genes affected
RECQL4 (HGNC:9949): (RecQ like helicase 4) The protein encoded by this gene is a DNA helicase that belongs to the RecQ helicase family. DNA helicases unwind double-stranded DNA into single-stranded DNAs and may modulate chromosome segregation. This gene is predominantly expressed in thymus and testis. Mutations in this gene are associated with Rothmund-Thomson, RAPADILINO and Baller-Gerold syndromes. [provided by RefSeq, Jan 2010]
RECQL4 Gene-Disease associations (from GenCC):
  • Baller-Gerold syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet
  • Rothmund-Thomson syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Rothmund-Thomson syndrome type 2
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, G2P
  • osteosarcoma
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • rapadilino syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 8-144513126-G-A is Pathogenic according to our data. Variant chr8-144513126-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 56406.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.2476C>T p.Arg826* stop_gained Exon 15 of 21 ENST00000617875.6 NP_004251.4 O94761

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkc.2476C>T p.Arg826* stop_gained Exon 15 of 21 1 NM_004260.4 ENSP00000482313.2 O94761
RECQL4ENST00000621189.4 linkc.1405C>T p.Arg469* stop_gained Exon 14 of 20 1 ENSP00000483145.1 A0A087X072
RECQL4ENST00000534626.6 linkc.646C>T p.Arg216* stop_gained Exon 6 of 8 5 ENSP00000477457.1 V9GZ64
ENSG00000265393ENST00000580385.1 linkn.271+289G>A intron_variant Intron 1 of 1 3

Frequencies

GnomAD3 genomes
AF:
0.0000470
AC:
7
AN:
148890
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000582
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000743
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000540
AC:
11
AN:
203756
AF XY:
0.0000544
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000305
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000875
Gnomad OTH exome
AF:
0.000199
GnomAD4 exome
AF:
0.0000352
AC:
49
AN:
1392150
Hom.:
0
Cov.:
66
AF XY:
0.0000292
AC XY:
20
AN XY:
686022
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31662
American (AMR)
AF:
0.00
AC:
0
AN:
40774
Ashkenazi Jewish (ASJ)
AF:
0.000448
AC:
10
AN:
22344
East Asian (EAS)
AF:
0.0000271
AC:
1
AN:
36914
South Asian (SAS)
AF:
0.0000127
AC:
1
AN:
78498
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46822
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5442
European-Non Finnish (NFE)
AF:
0.0000336
AC:
36
AN:
1072822
Other (OTH)
AF:
0.0000176
AC:
1
AN:
56872
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
4
8
12
16
20
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
AF:
0.0000470
AC:
7
AN:
148890
Hom.:
0
Cov.:
34
AF XY:
0.0000414
AC XY:
3
AN XY:
72462
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40542
American (AMR)
AF:
0.00
AC:
0
AN:
14898
Ashkenazi Jewish (ASJ)
AF:
0.000582
AC:
2
AN:
3436
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4948
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4670
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
9868
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
306
European-Non Finnish (NFE)
AF:
0.0000743
AC:
5
AN:
67276
Other (OTH)
AF:
0.00
AC:
0
AN:
2050
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000319
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000241
AC:
2
ExAC
AF:
0.0000671
AC:
8

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:2
Feb 03, 2017
Eurofins Ntd Llc (ga)
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

RECQL4: PVS1, PM3:Strong, PM2 -

Rapadilino syndrome Pathogenic:1
-
Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM)
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Baller-Gerold syndrome;C1849453:Rapadilino syndrome;C5203410:Rothmund-Thomson syndrome type 2 Pathogenic:1
Nov 29, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Baller-Gerold syndrome Pathogenic:1
Dec 19, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg826*) in the RECQL4 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in RECQL4 are known to be pathogenic (PMID: 12734318, 12952869). This variant is present in population databases (rs386833851, gnomAD 0.03%). This premature translational stop signal has been observed in individual(s) with Rothmund–Thomson syndrome (PMID: 12734318, 18716613). This variant is also known as g.3685G>A. ClinVar contains an entry for this variant (Variation ID: 56406). For these reasons, this variant has been classified as Pathogenic. -

Hereditary cancer-predisposing syndrome Pathogenic:1
Sep 29, 2021
Sema4, Sema4
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
35
DANN
Benign
0.88
FATHMM_MKL
Benign
0.29
N
PhyloP100
1.4
Vest4
0.39
GERP RS
-0.20
PromoterAI
-0.0041
Neutral
Mutation Taster
=5/195
disease causing (ClinVar)

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: rs386833851; hg19: chr8-145738509; API