chr11-31791981-C-G

Variant names:

• chr11-31791981-C-G
• rs3026389
• NM_001368894.2:c.1075-1121G>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001368894.2(PAX6):​c.1075-1121G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.681 in 152,196 control chromosomes in the GnomAD database, including 37,076 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.68 (37076 hom., cov: 34)
  • Failed GnomAD Quality Control
• Consequence: PAX6 NM_001368894.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.709
• Publications: 5 publications found

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.799 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PAX6	NM_001368894.2	c.1075-1121G>C		intron_variant	Intron 12 of 13	ENST00000640368.2	NP_001355823.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PAX6	ENST00000640368.2	c.1075-1121G>C		intron_variant	Intron 12 of 13	5	NM_001368894.2	ENSP00000492024.1

Frequencies

GnomAD3 genomes AF: 0.681 AC: 103571 AN: 152078 Hom.: 37063 Cov.: 34

Gnomad AFR AF: 0.470

Gnomad AMI AF: 0.871

Gnomad AMR AF: 0.642

Gnomad ASJ AF: 0.786

Gnomad EAS AF: 0.485

Gnomad SAS AF: 0.750

Gnomad FIN AF: 0.771

Gnomad MID AF: 0.699

Gnomad NFE AF: 0.805

Gnomad OTH AF: 0.710

GnomAD4 exome Data not reliable, filtered out with message: AC0 AC: 0 AN: 0 Hom.: 0 Cov.: 0 AC XY: 0 AN XY: 0

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AC: 0 AN: 0

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.681 AC: 103614 AN: 152196 Hom.: 37076 Cov.: 34 AF XY: 0.679 AC XY: 50499 AN XY: 74410

African (AFR) AF: 0.470 AC: 19497 AN: 41494

American (AMR) AF: 0.642 AC: 9826 AN: 15298

Ashkenazi Jewish (ASJ) AF: 0.786 AC: 2730 AN: 3472

East Asian (EAS) AF: 0.485 AC: 2513 AN: 5182

South Asian (SAS) AF: 0.751 AC: 3621 AN: 4824

European-Finnish (FIN) AF: 0.771 AC: 8165 AN: 10590

Middle Eastern (MID) AF: 0.694 AC: 204 AN: 294

European-Non Finnish (NFE) AF: 0.805 AC: 54756 AN: 68016

Other (OTH) AF: 0.713 AC: 1508 AN: 2114

Alfa AF: 0.742 Hom.: 5342

Bravo AF: 0.659

Asia WGS AF: 0.610 AC: 2124 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	0.30
DANN	Benign	0.32
PhyloP100		-0.71
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs3026389; hg19: chr11-31813529;