20-9409086-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2PP2PP3_StrongPP5_Moderate

The NM_001377142.1(PLCB4):​c.1904A>G​(p.Tyr635Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 32)

Consequence

PLCB4
NM_001377142.1 missense

Scores

17
1
1

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 9.32
Variant links:
Genes affected
PLCB4 (HGNC:9059): (phospholipase C beta 4) The protein encoded by this gene catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate. This reaction uses calcium as a cofactor and plays an important role in the intracellular transduction of many extracellular signals in the retina. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the PLCB4 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 18 curated benign missense variants. Gene score misZ: 3.5718 (above the threshold of 3.09). Trascript score misZ: 3.2758 (above the threshold of 3.09). GenCC associations: The gene is linked to auriculocondylar syndrome 1, auriculocondylar syndrome, auriculocondylar syndrome 2.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.98
PP5
Variant 20-9409086-A-G is Pathogenic according to our data. Variant chr20-9409086-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 31637.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr20-9409086-A-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PLCB4NM_001377142.1 linkc.1904A>G p.Tyr635Cys missense_variant 24/40 ENST00000378473.9 NP_001364071.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PLCB4ENST00000378473.9 linkc.1904A>G p.Tyr635Cys missense_variant 24/401 NM_001377142.1 ENSP00000367734.5 A0A7P0MRI8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Auriculocondylar syndrome 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 04, 2012- -
Auriculocondylar syndrome 1 Pathogenic:1
Pathogenic, criteria provided, single submitterresearchUniversity of Washington Center for Mendelian Genomics, University of WashingtonSep 17, 2012- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.90
.;D;.;D;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D;.;.;D
M_CAP
Pathogenic
0.64
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D
MetaSVM
Pathogenic
0.92
D
MutationAssessor
Pathogenic
4.0
.;H;.;H;H
PrimateAI
Pathogenic
0.90
D
PROVEAN
Pathogenic
-9.0
D;D;.;D;D
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
D;D;.;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
.;D;.;D;D
Vest4
0.95
MutPred
0.87
.;Loss of catalytic residue at I622 (P = 0.0561);.;Loss of catalytic residue at I622 (P = 0.0561);Loss of catalytic residue at I622 (P = 0.0561);
MVP
0.97
MPC
1.9
ClinPred
1.0
D
GERP RS
6.2
Varity_R
0.94
gMVP
0.99

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: rs397514480; hg19: chr20-9389733; API