rs376493359

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The ENST00000621189.4(RECQL4):​c.-128C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,613,458 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

RECQL4
ENST00000621189.4 5_prime_UTR_premature_start_codon_gain

Scores

11

Clinical Significance

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

Conservation

PhyloP100: -0.671

Publications

0 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: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04191944).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.944C>T p.Ser315Leu missense_variant Exon 5 of 21 ENST00000617875.6 NP_004251.4 O94761

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkc.944C>T p.Ser315Leu missense_variant Exon 5 of 21 1 NM_004260.4 ENSP00000482313.2 O94761

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152192
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000604
AC:
15
AN:
248314
AF XY:
0.0000592
show subpopulations
Gnomad AFR exome
AF:
0.000846
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000557
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1461148
Hom.:
0
Cov.:
66
AF XY:
0.0000193
AC XY:
14
AN XY:
726858
show subpopulations
African (AFR)
AF:
0.000508
AC:
17
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52888
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111852
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.000177
AC:
27
AN:
152310
Hom.:
0
Cov.:
34
AF XY:
0.000161
AC XY:
12
AN XY:
74492
show subpopulations
African (AFR)
AF:
0.000529
AC:
22
AN:
41566
American (AMR)
AF:
0.000131
AC:
2
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.0000282
Hom.:
0
Bravo
AF:
0.000230
ESP6500AA
AF:
0.000722
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000579
AC:
7

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
Aug 30, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.944C>T (p.S315L) alteration is located in exon 5 (coding exon 5) of the RECQL4 gene. This alteration results from a C to T substitution at nucleotide position 944, causing the serine (S) at amino acid position 315 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Baller-Gerold syndrome Uncertain:1
Sep 24, 2024
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 315 of the RECQL4 protein (p.Ser315Leu). This variant is present in population databases (rs376493359, gnomAD 0.08%). 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: 406955). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Hereditary cancer-predisposing syndrome Uncertain:1
Dec 17, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
6.4
DANN
Benign
0.40
DEOGEN2
Benign
0.032
T
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.55
T
M_CAP
Benign
0.00096
T
MetaRNN
Benign
0.042
T
PhyloP100
-0.67
PrimateAI
Benign
0.28
T
Sift4G
Benign
0.31
T
Polyphen
0.27
B
Vest4
0.24
MVP
0.72
GERP RS
-1.4
PromoterAI
-0.025
Neutral
Varity_R
0.033
gMVP
0.16
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.18
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: rs376493359; hg19: chr8-145741559; COSMIC: COSV52880248; API