rs7553155

Variant names:

• chr1-36102635-A-C
• rs7553155
• NM_005202.4:c.-16-2377T>G

Your query was ambiguous. Multiple possible variants found:

• chr1-36102635-A-C
• chr1-36102635-A-G
• chr1-36102635-A-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_005202.4(COL8A2):​c.-16-2377T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. 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 0.0 (0 hom., cov: 24)
  • Failed GnomAD Quality Control
• Consequence: COL8A2 NM_005202.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.587
• Publications: 2 publications found

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]

COL8A2 Gene-Disease associations (from GenCC):

• corneal dystrophy, Fuchs endothelial, 1

  Inheritance: AD Classification: STRONG Submitted by: G2P
• posterior polymorphous corneal dystrophy 2

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Fuchs' endothelial dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• posterior polymorphous corneal dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005202.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL8A2	NM_005202.4	MANE Select	c.-16-2377T>G		intron	N/A	NP_005193.1	P25067
	COL8A2	NM_001294347.2		c.-66-2377T>G		intron	N/A	NP_001281276.1	E9PP49

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL8A2	ENST00000397799.2	TSL:5 MANE Select	c.-16-2377T>G		intron	N/A	ENSP00000380901.1	P25067

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 147118 Hom.: 0 Cov.: 24

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

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

GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 147118 Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0 AN XY: 71176

African (AFR) AF: 0.00 AC: 0 AN: 39628

American (AMR) AF: 0.00 AC: 0 AN: 14412

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5054

South Asian (SAS) AF: 0.00 AC: 0 AN: 4762

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 8898

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67632

Other (OTH) AF: 0.00 AC: 0 AN: 2046

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.59

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs7553155; hg19: chr1-36568236;