4-39268040-C-T

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_025132.4(WDR19):c.3307C>T(p.Arg1103*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,452,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

WDR19
NM_025132.4 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:2O:1

Conservation

PhyloP100: 1.25

Publications

5 publications found

Variant links:

Genes affected

WDR19 (HGNC:18340): (WD repeat domain 19) The protein encoded by this gene is a member of the WD (tryptophan-aspartic acid) repeat family, which is a large family of structurally-related proteins known to participate in a wide range of cellular processes. Each WD repeat typically contains about 40 amino acids that are usually bracketed by glycine-histidine and tryptophan-aspartic acid (WD) dipeptides. This protein contains six WD repeats, three transmembrane domains, and a clathrin heavy-chain repeat. Mutations in this gene have been described in individuals with a wide range of disorders affecting function of the cilium. These disorders are known as ciliopathies, and include Jeune syndrome, Sensenbrenner syndromes, Senior-Loken syndrome, combined or isolated nephronophthisis (NPHP), and retinitis pigmentosa (RP). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

WDR19 Gene-Disease associations (from GenCC):

asphyxiating thoracic dystrophy 5
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
ciliopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
cranioectodermal dysplasia 4
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
nephronophthisis 13
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Senior-Loken syndrome 8
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
cranioectodermal dysplasia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Jeune syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nephronophthisis 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Senior-Loken syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WDR19 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 4-39268040-C-T is Pathogenic according to our data. Variant chr4-39268040-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 30704.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR19	NM_025132.4 link	c.3307C>T	p.Arg1103*	stop_gained	Exon 30 of 37	ENST00000399820.8	NP_079408.3	Q8NEZ3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
WDR19	ENST00000399820.8 link	c.3307C>T	p.Arg1103*	stop_gained	Exon 30 of 37	1	NM_025132.4	ENSP00000382717.3	Q8NEZ3-1
WDR19	ENST00000506869.5 link	n.*2888C>T		non_coding_transcript_exon_variant	Exon 29 of 36	2		ENSP00000424319.1	D6RBA0
WDR19	ENST00000512095.5 link	n.2305C>T		non_coding_transcript_exon_variant	Exon 20 of 23	2
WDR19	ENST00000506869.5 link	n.*2888C>T		3_prime_UTR_variant	Exon 29 of 36	2		ENSP00000424319.1	D6RBA0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000128

AC:

AN:

235110

AF XY:

0.0000158

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000283

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000413

AC:

AN:

1452806

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

721580

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33314

American (AMR)

AF:

0.00

AC:

AN:

43668

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25880

East Asian (EAS)

AF:

0.00

AC:

AN:

39418

South Asian (SAS)

AF:

0.00

AC:

AN:

84114

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52910

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00000361

AC:

AN:

1107644

Other (OTH)

AF:

0.0000333

AC:

AN:

60100

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000344

Hom.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Cranioectodermal dysplasia 4

Pathogenic:1Other:1

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

Nov 11, 2011

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Asphyxiating thoracic dystrophy 5;C4225376:Senior-Loken syndrome 8

Pathogenic:1

Sep 17, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg1103*) in the WDR19 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in WDR19 are known to be pathogenic (PMID: 22019273, 23559409, 23683095, 26275793, 27241786, 29068549). This variant is present in population databases (rs387906981, ExAC 0.006%). This premature translational stop signal has been observed in individual(s) with Sensenbrenner syndrom (PMID: 22019273). In at least one individual the data is consistent with the variant being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 30704). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Pathogenic

0.58

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.83

PhyloP100

1.2

Vest4

0.39

GERP RS

4.3

Mutation Taster

=1/199

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over