21-42850139-T-C

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_018669.6(WDR4):ā€‹c.1149A>Gā€‹(p.Leu383=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,613,994 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.00054 ( 1 hom., cov: 33)
Exomes š‘“: 0.0011 ( 2 hom. )

Consequence

WDR4
NM_018669.6 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.520
Variant links:
Genes affected
WDR4 (HGNC:12756): (WD repeat domain 4) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. This gene is excluded as a candidate for a form of nonsyndromic deafness (DFNB10), but is still a candidate for other disorders mapped to 21q22.3 as well as for the development of Down syndrome phenotypes. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 21-42850139-T-C is Benign according to our data. Variant chr21-42850139-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2059339.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.52 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000539 (82/152248) while in subpopulation NFE AF= 0.0011 (75/68044). AF 95% confidence interval is 0.000901. There are 1 homozygotes in gnomad4. There are 36 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
WDR4NM_018669.6 linkuse as main transcriptc.1149A>G p.Leu383= synonymous_variant 11/11 ENST00000398208.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
WDR4ENST00000398208.3 linkuse as main transcriptc.1149A>G p.Leu383= synonymous_variant 11/111 NM_018669.6 P1P57081-1
WDR4ENST00000330317.6 linkuse as main transcriptc.1149A>G p.Leu383= synonymous_variant 11/121 P1P57081-1
WDR4ENST00000476326.5 linkuse as main transcriptn.1064A>G non_coding_transcript_exon_variant 11/111
WDR4ENST00000492742.5 linkuse as main transcriptn.1292A>G non_coding_transcript_exon_variant 11/112

Frequencies

GnomAD3 genomes
AF:
0.000539
AC:
82
AN:
152248
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
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:
0.00110
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000362
AC:
91
AN:
251230
Hom.:
0
AF XY:
0.000368
AC XY:
50
AN XY:
135814
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000290
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:
0.000757
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.00108
AC:
1584
AN:
1461746
Hom.:
2
Cov.:
32
AF XY:
0.00104
AC XY:
758
AN XY:
727174
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00133
Gnomad4 OTH exome
AF:
0.00166
GnomAD4 genome
AF:
0.000539
AC:
82
AN:
152248
Hom.:
1
Cov.:
33
AF XY:
0.000484
AC XY:
36
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.000169
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:
0.00110
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000655
Hom.:
0
Bravo
AF:
0.000586
EpiCase
AF:
0.00180
EpiControl
AF:
0.000652

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 13, 2023- -
WDR4-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 22, 2019This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
4.7
DANN
Benign
0.40
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs141128863; hg19: chr21-44270249; API