rs747356389

Variant summary

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

The NM_004260.4(RECQL4):​c.37G>T​(p.Ala13Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000977 in 1,330,508 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 9/13 in silico tools predict a benign outcome for this variant. 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. A13P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000093 ( 1 hom. )

Consequence

RECQL4
NM_004260.4 missense

Scores

1
10

Clinical Significance

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

Conservation

PhyloP100: 0.393

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]
LRRC14 (HGNC:20419): (leucine rich repeat containing 14) This gene encodes a leucine-rich repeat-containing protein. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Dec 2012]

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=0.04232186).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RECQL4NM_004260.4 linkc.37G>T p.Ala13Ser missense_variant Exon 1 of 21 ENST00000617875.6 NP_004251.4
LRRC14NM_014665.4 linkc.-405C>A upstream_gene_variant ENST00000292524.6 NP_055480.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkc.37G>T p.Ala13Ser missense_variant Exon 1 of 21 1 NM_004260.4 ENSP00000482313.2
LRRC14ENST00000292524.6 linkc.-405C>A upstream_gene_variant 1 NM_014665.4 ENSP00000292524.1

Frequencies

GnomAD3 genomes
AF:
0.0000133
AC:
2
AN:
150936
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000741
AC:
3
AN:
40478
AF XY:
0.000123
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000933
AC:
11
AN:
1179572
Hom.:
1
Cov.:
32
AF XY:
0.0000156
AC XY:
9
AN XY:
575368
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
23516
American (AMR)
AF:
0.00
AC:
0
AN:
16048
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
17888
East Asian (EAS)
AF:
0.00
AC:
0
AN:
25096
South Asian (SAS)
AF:
0.000205
AC:
10
AN:
48694
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
26818
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3282
European-Non Finnish (NFE)
AF:
0.00000103
AC:
1
AN:
971022
Other (OTH)
AF:
0.00
AC:
0
AN:
47208
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000133
AC:
2
AN:
150936
Hom.:
0
Cov.:
34
AF XY:
0.0000272
AC XY:
2
AN XY:
73664
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41304
American (AMR)
AF:
0.00
AC:
0
AN:
15154
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.000413
AC:
2
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10114
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67592
Other (OTH)
AF:
0.00
AC:
0
AN:
2070
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.00
Hom.:
0
ExAC
AF:
0.000333
AC:
4

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
May 07, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.A13S variant (also known as c.37G>T), located in coding exon 1 of the RECQL4 gene, results from a G to T substitution at nucleotide position 37. The alanine at codon 13 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Baller-Gerold syndrome Uncertain:1
Jan 23, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 13 of the RECQL4 protein (p.Ala13Ser). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 528960). 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
0.11
BayesDel_addAF
Benign
-0.081
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
9.6
DANN
Benign
0.73
DEOGEN2
Benign
0.029
T
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.48
T
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.042
T
PhyloP100
0.39
PrimateAI
Pathogenic
0.82
D
Sift4G
Benign
0.61
T
Polyphen
0.45
P
Vest4
0.060
MVP
0.66
GERP RS
2.5
PromoterAI
0.037
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.071
gMVP
0.088
Mutation Taster
=98/2
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: rs747356389; hg19: chr8-145743132; API