rs201106179

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_004260.4(RECQL4):​c.2518C>T​(p.Leu840Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000355 in 1,576,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. L840L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

RECQL4
NM_004260.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.626

Publications

2 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: Benign. The variant received -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 8-144513084-G-A is Benign according to our data. Variant chr8-144513084-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 414194.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.626 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.2518C>T p.Leu840Leu synonymous_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.2518C>T p.Leu840Leu synonymous_variant Exon 15 of 21 1 NM_004260.4 ENSP00000482313.2 O94761
RECQL4ENST00000621189.4 linkc.1447C>T p.Leu483Leu synonymous_variant Exon 14 of 20 1 ENSP00000483145.1 A0A087X072
RECQL4ENST00000534626.6 linkc.688C>T p.Leu230Leu synonymous_variant Exon 6 of 8 5 ENSP00000477457.1 V9GZ64
ENSG00000265393ENST00000580385.1 linkn.271+247G>A intron_variant Intron 1 of 1 3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152184
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000620
AC:
13
AN:
209682
AF XY:
0.0000614
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000328
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000856
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000372
AC:
53
AN:
1424530
Hom.:
0
Cov.:
66
AF XY:
0.0000412
AC XY:
29
AN XY:
704004
show subpopulations
African (AFR)
AF:
0.0000306
AC:
1
AN:
32668
American (AMR)
AF:
0.0000242
AC:
1
AN:
41260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24366
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38542
South Asian (SAS)
AF:
0.000122
AC:
10
AN:
81964
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50018
Middle Eastern (MID)
AF:
0.000354
AC:
2
AN:
5642
European-Non Finnish (NFE)
AF:
0.0000321
AC:
35
AN:
1091402
Other (OTH)
AF:
0.0000682
AC:
4
AN:
58668
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.0000197
AC:
3
AN:
152184
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41470
American (AMR)
AF:
0.0000655
AC:
1
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.000125
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Aug 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

RECQL4: BP4, BP7 -

Baller-Gerold syndrome Benign:1
Jan 26, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely 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
-0.77
CADD
Benign
0.83
DANN
Benign
0.83
PhyloP100
0.63
PromoterAI
-0.059
Neutral
Mutation Taster
=100/0
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: rs201106179; hg19: chr8-145738467; API