rs558061753

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_004260.4(RECQL4):​c.2059-8_2059-6del 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 0.000715 in 1,545,812 control chromosomes in the GnomAD database, including 6 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0027 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00050 ( 5 hom. )

Consequence

RECQL4
NM_004260.4 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.06
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6
Variant 8-144513717-TGAG-T is Benign according to our data. Variant chr8-144513717-TGAG-T is described in ClinVar as [Likely_benign]. Clinvar id is 414231.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-144513717-TGAG-T is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00268 (402/150218) while in subpopulation AFR AF= 0.00854 (348/40772). AF 95% confidence interval is 0.0078. There are 1 homozygotes in gnomad4. There are 200 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RECQL4NM_004260.4 linkuse as main transcriptc.2059-8_2059-6del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000617875.6 NP_004251.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkuse as main transcriptc.2059-8_2059-6del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_004260.4 ENSP00000482313 P1
ENST00000580385.1 linkuse as main transcript downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00269
AC:
404
AN:
150098
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00861
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00133
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000355
Gnomad OTH
AF:
0.00441
GnomAD3 exomes
AF:
0.000850
AC:
130
AN:
152926
Hom.:
4
AF XY:
0.000654
AC XY:
53
AN XY:
81082
show subpopulations
Gnomad AFR exome
AF:
0.0116
Gnomad AMR exome
AF:
0.000574
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000322
Gnomad OTH exome
AF:
0.00116
GnomAD4 exome
AF:
0.000504
AC:
703
AN:
1395594
Hom.:
5
AF XY:
0.000500
AC XY:
344
AN XY:
688220
show subpopulations
Gnomad4 AFR exome
AF:
0.00994
Gnomad4 AMR exome
AF:
0.000702
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000253
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000268
Gnomad4 OTH exome
AF:
0.00118
GnomAD4 genome
AF:
0.00268
AC:
402
AN:
150218
Hom.:
1
Cov.:
32
AF XY:
0.00273
AC XY:
200
AN XY:
73246
show subpopulations
Gnomad4 AFR
AF:
0.00854
Gnomad4 AMR
AF:
0.00133
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000355
Gnomad4 OTH
AF:
0.00436
Alfa
AF:
0.00173
Hom.:
0
Bravo
AF:
0.00328

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 18, 2020- -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submittercurationSema4, Sema4Sep 10, 2020- -
Baller-Gerold syndrome Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs558061753; hg19: chr8-145739101; API