rs397514640

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_001368929.2(PAX6):​c.-339C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-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 Pathogenic (★).

Frequency

Genomes: not found (cov: 31)

Consequence

PAX6
NM_001368929.2 5_prime_UTR_premature_start_codon_gain

Scores

14
4
1

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 2.38
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.985
PP5
Variant 11-31802733-G-A is Pathogenic according to our data. Variant chr11-31802733-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 40090.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PAX6NM_001368894.2 linkc.112C>T p.Arg38Trp missense_variant Exon 5 of 14 ENST00000640368.2 NP_001355823.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PAX6ENST00000640368.2 linkc.112C>T p.Arg38Trp missense_variant Exon 5 of 14 5 NM_001368894.2 ENSP00000492024.1 P26367-2

Frequencies

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

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Coloboma, ocular, autosomal dominant Pathogenic:1
Nov 01, 2009
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

Aniridia 1 Pathogenic:1
Nov 01, 2009
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

Aniridia 1;C0344559:Irido-corneo-trabecular dysgenesis Pathogenic:1
Oct 15, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 38 of the PAX6 protein (p.Arg38Trp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with clinical features of aniridia (PMID: 17406642, 19876904, 31700164). ClinVar contains an entry for this variant (Variation ID: 40090). 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. This variant disrupts the p.Arg38 amino acid residue in PAX6. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 29145603, 29914532, 31700164, 34415986; Invitae). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.53
D
BayesDel_noAF
Pathogenic
0.52
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.99
.;.;.;D;D;D;D;D;.;D;.;.;.;.;.;.;D;.;.;D;.;D;.;.;.;.;.;.;.;.;.;D;.;.;.;.
Eigen
Uncertain
0.68
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Uncertain
0.93
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;D
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
0.98
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;D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Pathogenic
3.8
H;H;H;H;H;H;H;H;H;H;H;H;H;H;H;.;H;.;.;H;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-6.6
.;.;D;.;.;.;D;D;D;.;.;D;.;.;.;.;D;.;.;.;.;D;.;D;.;D;.;D;D;.;.;.;.;.;D;.
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
.;.;D;.;.;.;D;D;D;.;.;D;.;.;.;.;D;.;.;.;.;D;.;D;.;D;.;D;D;.;.;.;.;.;D;.
Sift4G
Pathogenic
0.0
D;.;D;.;.;.;D;.;D;.;.;D;.;.;.;.;D;.;.;.;.;.;.;D;.;.;.;D;.;.;.;.;.;.;.;.
Polyphen
1.0
.;.;.;D;D;D;D;D;.;D;.;.;.;.;.;.;D;.;.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Vest4
0.85
MutPred
0.90
Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);.;Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);
MVP
0.99
MPC
3.3
ClinPred
1.0
D
GERP RS
3.6
Varity_R
0.91
gMVP
0.96

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: rs397514640; hg19: chr11-31824281; API