rs942704068

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_004260.4(RECQL4):​c.85-4A>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,482,996 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

RECQL4
NM_004260.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001489
2

Clinical Significance

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

Conservation

PhyloP100: -0.654
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 -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 8-144517639-T-A is Benign according to our data. Variant chr8-144517639-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 459520.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RECQL4NM_004260.4 linkuse as main transcriptc.85-4A>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000617875.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RECQL4ENST00000621189.4 linkuse as main transcriptc.-991A>T 5_prime_UTR_variant 1/201
RECQL4ENST00000617875.6 linkuse as main transcriptc.85-4A>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_004260.4 P1
RECQL4ENST00000534538.1 linkuse as main transcript upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151710
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000278
AC:
37
AN:
1331286
Hom.:
0
Cov.:
32
AF XY:
0.0000244
AC XY:
16
AN XY:
656498
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000322
Gnomad4 OTH exome
AF:
0.0000543
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151710
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74140
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

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

Submissions by phenotype

RECQL4-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesDec 09, 2021This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Baller-Gerold syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 24, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
2.6
DANN
Benign
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00015
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.040
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: rs942704068; hg19: chr8-145743023; API