rs96067

chr1-36106319-G-Achr1-36106319-G-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005202.4(COL8A2):c.-16-6061C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.724 in 151,450 control chromosomes in the GnomAD database, including 40,393 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 0.72 (40393 hom., cov: 28)
• Consequence: COL8A2 NM_005202.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.52

Genes affected

COL8A2 (HGNC:2216): (collagen type VIII alpha 2 chain) This gene encodes the alpha 2 chain of type VIII collagen. This protein is a major component of the basement membrane of the corneal endothelium and forms homo- or heterotrimers with alpha 1 (VIII) type collagens. Defects in this gene are associated with Fuchs endothelial corneal dystrophy and posterior polymorphous corneal dystrophy type 2. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.8 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL8A2	NM_005202.4	c.-16-6061C>T		intron_variant		ENST00000397799.2
COL8A2	NM_001294347.2	c.-66-6061C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL8A2	ENST00000397799.2	c.-16-6061C>T		intron_variant		5	NM_005202.4	P2

Frequencies

GnomAD3 genomes AF: 0.724 AC: 109539 AN: 151344 Hom.: 40365 Cov.: 28

Gnomad AFR AF: 0.645

Gnomad AMI AF: 0.747

Gnomad AMR AF: 0.654

Gnomad ASJ AF: 0.757

Gnomad EAS AF: 0.481

Gnomad SAS AF: 0.646

Gnomad FIN AF: 0.738

Gnomad MID AF: 0.782

Gnomad NFE AF: 0.806

Gnomad OTH AF: 0.728

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.724 AC: 109619 AN: 151450 Hom.: 40393 Cov.: 28 AF XY: 0.716 AC XY: 52933 AN XY: 73944

Gnomad4 AFR AF: 0.646

Gnomad4 AMR AF: 0.654

Gnomad4 ASJ AF: 0.757

Gnomad4 EAS AF: 0.480

Gnomad4 SAS AF: 0.647

Gnomad4 FIN AF: 0.738

Gnomad4 NFE AF: 0.806

Gnomad4 OTH AF: 0.727

Alfa AF: 0.783 Hom.: 98874

Bravo AF: 0.712

Asia WGS AF: 0.603 AC: 2097 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
Cadd	Benign	0.15
Dann	Benign	0.47

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

LitVar

Other links and lift over

dbSNP: rs96067; hg19: chr1-36571920;