8-144514975-C-T

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_004260.4(RECQL4):​c.1581G>A​(p.Thr527Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000227 in 1,611,860 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00023 ( 1 hom. )

Consequence

RECQL4
NM_004260.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -2.50
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 -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 8-144514975-C-T is Benign according to our data. Variant chr8-144514975-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 414224.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.5 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RECQL4NM_004260.4 linkuse as main transcriptc.1581G>A p.Thr527Thr synonymous_variant 9/21 ENST00000617875.6 NP_004251.4 O94761

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RECQL4ENST00000617875.6 linkuse as main transcriptc.1581G>A p.Thr527Thr synonymous_variant 9/211 NM_004260.4 ENSP00000482313.2 O94761
RECQL4ENST00000621189.4 linkuse as main transcriptc.510G>A p.Thr170Thr synonymous_variant 8/201 ENSP00000483145.1 A0A087X072
RECQL4ENST00000532846.2 linkuse as main transcriptc.435G>A p.Thr145Thr synonymous_variant 5/95 ENSP00000476551.1 V9GYA3
RECQL4ENST00000688394.1 linkuse as main transcriptn.604G>A non_coding_transcript_exon_variant 3/4

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152190
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000827
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000236
AC:
58
AN:
245716
Hom.:
1
AF XY:
0.000298
AC XY:
40
AN XY:
134040
show subpopulations
Gnomad AFR exome
AF:
0.0000662
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00118
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000135
Gnomad OTH exome
AF:
0.00100
GnomAD4 exome
AF:
0.000231
AC:
337
AN:
1459670
Hom.:
1
Cov.:
33
AF XY:
0.000284
AC XY:
206
AN XY:
726046
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.000987
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000194
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.000191
AC:
29
AN:
152190
Hom.:
0
Cov.:
34
AF XY:
0.000188
AC XY:
14
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.000193
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000827
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000164
Hom.:
0
Bravo
AF:
0.000204
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 20, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Rothmund-Thomson syndrome type 2 Benign:1
Likely benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submittercurationSema4, Sema4Sep 10, 2021- -
Baller-Gerold syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
0.026
DANN
Benign
0.86

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs367559988; hg19: chr8-145740359; API