2-171434365-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_025000.4(DCAF17):​c.-213C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00115 in 817,290 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0013 ( 14 hom. )

Consequence

DCAF17
NM_025000.4 5_prime_UTR

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.533
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]
METTL8 (HGNC:25856): (methyltransferase 8, tRNA N3-cytidine) Enables mRNA methyltransferase activity. Involved in mRNA methylation. Predicted to be located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 2-171434365-C-T is Benign according to our data. Variant chr2-171434365-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 893224.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000486 (74/152328) while in subpopulation SAS AF= 0.0149 (72/4830). AF 95% confidence interval is 0.0121. There are 0 homozygotes in gnomad4. There are 53 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 14 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DCAF17NM_025000.4 linkuse as main transcriptc.-213C>T 5_prime_UTR_variant 1/14 ENST00000375255.8 NP_079276.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DCAF17ENST00000375255.8 linkuse as main transcriptc.-213C>T 5_prime_UTR_variant 1/141 NM_025000.4 ENSP00000364404 P1Q5H9S7-1

Frequencies

GnomAD3 genomes
AF:
0.000486
AC:
74
AN:
152212
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0149
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00239
AC:
310
AN:
129672
Hom.:
7
AF XY:
0.00323
AC XY:
229
AN XY:
70858
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000411
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0136
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00125
GnomAD4 exome
AF:
0.00130
AC:
864
AN:
664962
Hom.:
14
Cov.:
9
AF XY:
0.00187
AC XY:
660
AN XY:
352194
show subpopulations
Gnomad4 AFR exome
AF:
0.0000574
Gnomad4 AMR exome
AF:
0.0000294
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0131
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000464
Gnomad4 OTH exome
AF:
0.000600
GnomAD4 genome
AF:
0.000486
AC:
74
AN:
152328
Hom.:
0
Cov.:
32
AF XY:
0.000712
AC XY:
53
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0149
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000854
Hom.:
0
Bravo
AF:
0.000125
Asia WGS
AF:
0.00606
AC:
21
AN:
3478

ClinVar

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

Submissions by phenotype

Woodhouse-Sakati syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxFeb 24, 2020See Variant Classification Assertion Criteria. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
5.6
DANN
Benign
0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs377182072; hg19: chr2-172290875; API