rs35029361

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_004260.4(RECQL4):​c.2463+6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000356 in 1,507,762 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

RECQL4
NM_004260.4 splice_region, intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.856
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 8-144513212-G-A is Benign according to our data. Variant chr8-144513212-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 239730.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-144513212-G-A is described in Lovd as [Benign]. Variant chr8-144513212-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00215 (256/119006) while in subpopulation AFR AF= 0.00784 (244/31142). AF 95% confidence interval is 0.00703. There are 1 homozygotes in gnomad4. There are 135 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.2463+6C>T splice_region_variant, intron_variant Intron 14 of 20 ENST00000617875.6 NP_004251.4 O94761

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkc.2463+6C>T splice_region_variant, intron_variant Intron 14 of 20 1 NM_004260.4 ENSP00000482313.2 O94761
RECQL4ENST00000621189.4 linkc.1392+6C>T splice_region_variant, intron_variant Intron 13 of 19 1 ENSP00000483145.1 A0A087X072
RECQL4ENST00000534626.6 linkc.634-74C>T intron_variant Intron 5 of 7 5 ENSP00000477457.1 V9GZ64
ENSG00000265393ENST00000580385.1 linkn.271+375G>A intron_variant Intron 1 of 1 3

Frequencies

GnomAD3 genomes
AF:
0.00214
AC:
255
AN:
118982
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00782
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000834
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000541
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000718
AC:
86
AN:
119836
Hom.:
0
AF XY:
0.000526
AC XY:
34
AN XY:
64674
show subpopulations
Gnomad AFR exome
AF:
0.0108
Gnomad AMR exome
AF:
0.000302
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000705
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000202
AC:
281
AN:
1388756
Hom.:
0
Cov.:
47
AF XY:
0.000184
AC XY:
126
AN XY:
686406
show subpopulations
Gnomad4 AFR exome
AF:
0.00706
Gnomad4 AMR exome
AF:
0.000471
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000260
Gnomad4 SAS exome
AF:
0.0000247
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000933
Gnomad4 OTH exome
AF:
0.000346
GnomAD4 genome
AF:
0.00215
AC:
256
AN:
119006
Hom.:
1
Cov.:
32
AF XY:
0.00236
AC XY:
135
AN XY:
57178
show subpopulations
Gnomad4 AFR
AF:
0.00784
Gnomad4 AMR
AF:
0.000833
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000544
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00113
Hom.:
0

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Dec 17, 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

- -

not specified Benign:1
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Rapadilino syndrome Benign:1
Feb 01, 2025
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

RECQL4-related disorder Benign:1
Jul 09, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Hereditary cancer-predisposing syndrome Benign:1
Jan 31, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Baller-Gerold syndrome Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
2.0
DANN
Benign
0.89
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs35029361; hg19: chr8-145738595; API