rs121907918

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The ENST00000640872.1(PAX6):​c.-27C>T variant causes a 5 prime UTR premature start codon gain 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. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 32)

Consequence

PAX6
ENST00000640872.1 5_prime_UTR_premature_start_codon_gain

Scores

18
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 9.11

Publications

22 publications found
Variant links:
Genes affected
PAX6 (HGNC:8620): (paired box 6) This gene encodes paired box protein Pax-6, one of many human homologs of the Drosophila melanogaster gene prd. In addition to a conserved paired box domain, a hallmark feature of this gene family, the encoded protein also contains a homeobox domain. Both domains are known to bind DNA and function as regulators of gene transcription. Activity of this protein is key in the development of neural tissues, particularly the eye. This gene is regulated by multiple enhancers located up to hundreds of kilobases distant from this locus. Mutations in this gene or in the enhancer regions can cause ocular disorders such as aniridia and Peter's anomaly. Use of alternate promoters and alternative splicing results in multiple transcript variants encoding different isoforms. Interestingly, inclusion of a particular alternate coding exon has been shown to increase the length of the paired box domain and alter its DNA binding specificity. Consequently, isoforms that carry the shorter paired box domain regulate a different set of genes compared to the isoforms carrying the longer paired box domain. [provided by RefSeq, Mar 2019]
PAX6 Gene-Disease associations (from GenCC):
  • aniridia 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
  • PAX6-related ocular dysgenesis
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Peters anomaly
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet, Labcorp Genetics (formerly Invitae)
  • coloboma, ocular, autosomal dominant
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
  • diabetes mellitus
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • aniridia-cerebellar ataxia-intellectual disability syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • foveal hypoplasia-presenile cataract syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • isolated aniridia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • isolated optic nerve hypoplasia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal dominant keratitis
    Inheritance: Unknown, AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

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ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.991
PP5
Variant 11-31800832-G-A is Pathogenic according to our data. Variant chr11-31800832-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 3470.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PAX6NM_001368894.2 linkc.424C>T p.Arg142Cys missense_variant Exon 8 of 14 ENST00000640368.2 NP_001355823.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PAX6ENST00000640368.2 linkc.424C>T p.Arg142Cys missense_variant Exon 8 of 14 5 NM_001368894.2 ENSP00000492024.1

Frequencies

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

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Foveal hypoplasia 1 Pathogenic:2
Jun 01, 1996
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

-
Laboratoire de Génétique Moléculaire, CHU Bordeaux
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aniridia 1 Pathogenic:1
Aug 15, 2019
Wessex Regional Genetics Laboratory, Salisbury District Hospital
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Aniridia 1;C0344559:Irido-corneo-trabecular dysgenesis Pathogenic:1
Sep 28, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense change has been observed in individual(s) with foveal hypoplasia (PMID: 8640214, 32360764). It has also been observed to segregate with disease in related individuals. For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Arg128 amino acid residue in PAX6. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 18332330). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Experimental studies have shown that this missense change affects PAX6 function (PMID: 14744876, 23404109, 27013732). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PAX6 protein function. ClinVar contains an entry for this variant (Variation ID: 3470). This variant is also known as R125C. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 128 of the PAX6 protein (p.Arg128Cys). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.57
D
BayesDel_noAF
Pathogenic
0.58
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.99
.;.;.;D;D;D;D;D;.;D;.;.;.;.;.;.;D;.;.;D;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
.;.;.;.;.;.;.;.;.;.;.;.;.;.;D;D;.;D;D;D;D;D;D;.;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.80
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
3.5
.;.;.;H;H;H;H;H;.;H;.;.;.;.;.;.;H;.;.;H;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
PhyloP100
9.1
PrimateAI
Pathogenic
0.93
D
PROVEAN
Pathogenic
-6.5
.;.;D;.;.;.;D;D;D;.;.;D;.;.;.;.;D;.;.;.;.;.;.;D;.;.;.;.;.;.;.;.;.;.;.
REVEL
Pathogenic
0.96
Sift
Pathogenic
0.0
.;.;D;.;.;.;D;D;D;.;.;D;.;.;.;.;D;.;.;.;.;.;.;D;.;.;.;.;.;.;.;.;.;.;.
Sift4G
Pathogenic
0.0
D;.;D;.;.;.;D;.;D;.;.;D;.;.;.;.;D;.;.;.;.;.;.;D;.;.;.;.;.;.;.;.;.;.;.
Polyphen
1.0
.;.;.;D;D;D;D;D;.;D;.;.;.;.;.;.;D;.;.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Vest4
0.88
MutPred
0.97
.;.;.;Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);.;Loss of MoRF binding (P = 0.0095);.;.;.;.;.;Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);.;.;Loss of MoRF binding (P = 0.0095);.;.;.;Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);.;.;.;.;Loss of MoRF binding (P = 0.0095);.;.;.;
MVP
0.99
MPC
2.3
ClinPred
1.0
D
GERP RS
3.8
Varity_R
0.91
gMVP
0.95
Mutation Taster
=0/100
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs121907918; hg19: chr11-31822380; COSMIC: COSV104593424; COSMIC: COSV104593424; API