rs781636798

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004260.4(RECQL4):​c.2585C>T​(p.Ser862Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000528 in 1,571,684 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000058 ( 1 hom. )

Consequence

RECQL4
NM_004260.4 missense

Scores

12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4B:2

Conservation

PhyloP100: -1.81
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07679117).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.2585C>T p.Ser862Leu missense_variant 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.2585C>T p.Ser862Leu missense_variant Exon 15 of 21 1 NM_004260.4 ENSP00000482313.2 O94761

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152234
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000658
AC:
12
AN:
182372
Hom.:
0
AF XY:
0.0000811
AC XY:
8
AN XY:
98586
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000112
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000809
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000520
Gnomad OTH exome
AF:
0.000612
GnomAD4 exome
AF:
0.0000578
AC:
82
AN:
1419450
Hom.:
1
Cov.:
66
AF XY:
0.0000712
AC XY:
50
AN XY:
702364
show subpopulations
Gnomad4 AFR exome
AF:
0.0000308
Gnomad4 AMR exome
AF:
0.0000787
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000246
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000412
Gnomad4 OTH exome
AF:
0.000170
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152234
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
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
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000338
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:2
Aug 05, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Sep 07, 2016
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Malignant tumor of breast Uncertain:1
-
Center of Medical Genetics and Primary Health Care
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Baller-Gerold syndrome Uncertain:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 862 of the RECQL4 protein (p.Ser862Leu). This variant is present in population databases (rs781636798, 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: 289690). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt RECQL4 protein function with a negative predictive value of 80%. 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
0.071
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
1.1
DANN
Benign
0.59
DEOGEN2
Benign
0.0040
T;T
FATHMM_MKL
Benign
0.063
N
LIST_S2
Benign
0.30
T;T
M_CAP
Benign
0.0040
T
MetaRNN
Benign
0.077
T;T
MutationAssessor
Benign
0.0
.;N
PrimateAI
Benign
0.31
T
Sift4G
Benign
0.30
T;T
Polyphen
0.0020
.;B
Vest4
0.14
MVP
0.71
GERP RS
-0.80
Varity_R
0.044
gMVP
0.35

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs781636798; hg19: chr8-145738400; API