2-63174834-T-C
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PM2PP3_StrongPP5_Moderate
The NM_015910.7(WDPCP):c.1916-2A>G variant causes a splice acceptor change. The variant allele was found at a frequency of 0.00000411 in 1,461,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )
Consequence
WDPCP
NM_015910.7 splice_acceptor
NM_015910.7 splice_acceptor
Scores
3
3
1
Splicing: ADA: 0.9999
2
Clinical Significance
Conservation
PhyloP100: 4.16
Genes affected
WDPCP (HGNC:28027): (WD repeat containing planar cell polarity effector) This gene encodes a cytoplasmic WD40 repeat protein. A similar gene in frogs encodes a planar cell polarity protein that plays a critical role in collective cell movement and ciliogenesis by mediating septin localization. Mutations in this gene are associated with Bardet-Biedl syndrome 15 and may also play a role in Meckel-Gruber syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 16 ACMG points.
PVS1
?
Splicing variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
?
Variant 2-63174834-T-C is Pathogenic according to our data. Variant chr2-63174834-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 591518.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
WDPCP | NM_015910.7 | c.1916-2A>G | splice_acceptor_variant | ENST00000272321.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
WDPCP | ENST00000272321.12 | c.1916-2A>G | splice_acceptor_variant | 1 | NM_015910.7 | P1 | |||
ENST00000657946.1 | n.255+14592T>C | intron_variant, non_coding_transcript_variant |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461352Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 726984
GnomAD4 exome
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AC:
6
AN:
1461352
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Cov.:
31
AF XY:
AC XY:
3
AN XY:
726984
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
Bravo
AF:
ClinVar
Significance: Likely pathogenic
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Bardet-Biedl syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jul 06, 2022 | In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 591518). This variant has not been reported in the literature in individuals affected with WDPCP-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change affects an acceptor splice site in intron 14 of the WDPCP gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in WDPCP are known to be pathogenic (PMID: 20671153, 25427950, 27158779). - |
not provided Uncertain:1
Uncertain significance, no assertion criteria provided | research | Gharavi Laboratory, Columbia University | Sep 16, 2018 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
D;D;D;D
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
dbscSNV1_RF
Pathogenic
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AL_spliceai
Position offset: -2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at