2-171448666-TC-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP6BS1

The NM_025000.4(DCAF17):​c.322-14del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00035 in 1,375,510 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000041 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00035 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

DCAF17
NM_025000.4 splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.977
Variant links:
Genes affected
DCAF17 (HGNC:25784): (DDB1 and CUL4 associated factor 17) This gene encodes a nuclear transmembrane protein that associates with cullin 4A/damaged DNA binding protein 1 ubiquitin ligase complex. Mutations in this gene are associated with Woodhouse-Sakati syndrome. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 2-171448666-TC-T is Benign according to our data. Variant chr2-171448666-TC-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 191309.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.00035 (481/1375510) while in subpopulation AMR AF= 0.00187 (58/31058). AF 95% confidence interval is 0.00148. There are 0 homozygotes in gnomad4_exome. There are 261 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DCAF17NM_025000.4 linkuse as main transcriptc.322-14del splice_polypyrimidine_tract_variant, intron_variant ENST00000375255.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DCAF17ENST00000375255.8 linkuse as main transcriptc.322-14del splice_polypyrimidine_tract_variant, intron_variant 1 NM_025000.4 P1Q5H9S7-1

Frequencies

GnomAD3 genomes
AF:
0.0000410
AC:
4
AN:
97604
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000347
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000117
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:
0.0000457
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000350
AC:
481
AN:
1375510
Hom.:
0
Cov.:
31
AF XY:
0.000384
AC XY:
261
AN XY:
680140
show subpopulations
Gnomad4 AFR exome
AF:
0.000300
Gnomad4 AMR exome
AF:
0.00187
Gnomad4 ASJ exome
AF:
0.000340
Gnomad4 EAS exome
AF:
0.000398
Gnomad4 SAS exome
AF:
0.00101
Gnomad4 FIN exome
AF:
0.000413
Gnomad4 NFE exome
AF:
0.000252
Gnomad4 OTH exome
AF:
0.000497
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000409
AC:
4
AN:
97686
Hom.:
0
Cov.:
31
AF XY:
0.0000420
AC XY:
2
AN XY:
47626
show subpopulations
Gnomad4 AFR
AF:
0.0000346
Gnomad4 AMR
AF:
0.000116
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000457
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Woodhouse-Sakati syndrome Uncertain:1Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024- -
Uncertain significance, criteria provided, single submitterresearchCenter for Genomic Medicine, King Faisal Specialist Hospital and Research CenterJun 08, 2024Downgraded variant due to updated local frequency -
DCAF17-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 02, 2020This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

LitVar

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

Other links and lift over

dbSNP: rs201494527; hg19: chr2-172305176; API