rs531970883

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_004260.4(RECQL4):c.2086C>T(p.Arg696Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00011 in 1,551,440 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. R696S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

RECQL4
NM_004260.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.08

Publications

1 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

RECQL4 links:

ENSG00000265393 (HGNC:):

ENSG00000265393 links:

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
RECQL4	NM_004260.4 link	c.2086C>T	p.Arg696Cys	missense_variant	Exon 13 of 21	ENST00000617875.6	NP_004251.4	O94761

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RECQL4	ENST00000617875.6 link	c.2086C>T	p.Arg696Cys	missense_variant	Exon 13 of 21	1	NM_004260.4	ENSP00000482313.2		O94761

Frequencies

GnomAD3 genomes

AF:

0.0000594

AC:

AN:

151536

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000243

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000574

AC:

AN:

156784

AF XY:

0.0000360

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000980

Gnomad OTH exome

AF:

0.000453

GnomAD4 exome

AF:

0.000115

AC:

161

AN:

1399904

Hom.:

Cov.:

AF XY:

0.000117

AC XY:

AN XY:

690704

show subpopulations

African (AFR)

AF:

0.0000631

AC:

AN:

31714

American (AMR)

AF:

0.00

AC:

AN:

35836

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25184

East Asian (EAS)

AF:

0.00

AC:

AN:

35884

South Asian (SAS)

AF:

0.00

AC:

AN:

79402

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48116

Middle Eastern (MID)

AF:

0.000527

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.000140

AC:

151

AN:

1079984

Other (OTH)

AF:

0.0000861

AC:

AN:

58086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000594

AC:

AN:

151536

Hom.:

Cov.:

AF XY:

0.0000676

AC XY:

AN XY:

73938

show subpopulations

African (AFR)

AF:

0.0000243

AC:

AN:

41138

American (AMR)

AF:

0.00

AC:

AN:

15192

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3460

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4796

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10516

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67952

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000156

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000593

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Nov 30, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.R696C variant (also known as c.2086C>T), located in coding exon 13 of the RECQL4 gene, results from a C to T substitution at nucleotide position 2086. The arginine at codon 696 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Rothmund-Thomson syndrome type 2

Uncertain:1

Jul 22, 2021

St. Jude Molecular Pathology, St. Jude Children's Research Hospital

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The RECQL4 c.2086C>T (p.Arg696Cys) missense change has a maximum subpopulation frequency of 0.010% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/variant/8-145739069-G-A). In silico tools are not in agreement about the effect of this variant on protein function, but to our knowledge these predictions have not been confirmed by functional assays. To our knowledge, this variant has not been reported in individuals with RECQL4-associated disorders. In summary, this variant meets criteria to be classified as of uncertain significance based on the ACMG/AMP criteria: no criteria met. -

Baller-Gerold syndrome

Uncertain:1

Dec 23, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 696 of the RECQL4 protein (p.Arg696Cys). This variant is present in population databases (rs531970883, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with RECQL4-related conditions. ClinVar contains an entry for this variant (Variation ID: 459374). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on RECQL4 protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.16

CADD

Uncertain

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.11

T;D

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.72

D;D

PhyloP100

2.1

PrimateAI

Benign

0.46

Sift4G

Uncertain

0.0020

D;D

Polyphen

1.0

.;D

Vest4

0.79

MVP

0.65

GERP RS

4.1

Varity_R

0.32

gMVP

0.61

Mutation Taster

=54/46

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over