dbSNP rs769977498: RECQL4:p.Gly809Trp (chr8-144513256-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_004260.4(RECQL4):c.2425G>T(p.Gly809Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G809E) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

RECQL4
NM_004260.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.85

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

RECQL4 links:

ENSG00000265393 (HGNC:):

ENSG00000265393 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.83

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RECQL4	NM_004260.4 link	c.2425G>T	p.Gly809Trp	missense_variant	Exon 14 of 21	ENST00000617875.6	NP_004251.4	O94761

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RECQL4	ENST00000617875.6 link	c.2425G>T	p.Gly809Trp	missense_variant	Exon 14 of 21	1	NM_004260.4	ENSP00000482313.2	O94761
RECQL4	ENST00000621189.4 link	c.1354G>T	p.Gly452Trp	missense_variant	Exon 13 of 20	1		ENSP00000483145.1	A0A087X072
RECQL4	ENST00000534626.6 link	c.634-118G>T		intron_variant	Intron 5 of 7	5		ENSP00000477457.1	V9GZ64
ENSG00000265393	ENST00000580385.1 link	n.272-350C>A		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1438674

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

714820

African (AFR)

AF:

0.00

AC:

AN:

33266

American (AMR)

AF:

0.00

AC:

AN:

44176

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25922

East Asian (EAS)

AF:

0.00

AC:

AN:

39328

South Asian (SAS)

AF:

0.00

AC:

AN:

85626

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38480

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5530

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1106616

Other (OTH)

AF:

0.00

AC:

AN:

59730

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.54

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

(source)

DANN

Benign

0.90

DEOGEN2

Uncertain

0.50

D;D

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.86

D;D

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.83

D;D

MutationAssessor

Pathogenic

5.1

.;H

PhyloP100

1.9

PrimateAI

Uncertain

0.70

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

.;D

Vest4

0.69

MVP

0.64

GERP RS

3.8

PromoterAI

0.014

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.53

gMVP

0.75

Mutation Taster

=57/43

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over