Variant 3-99790969-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_020351.4(COL8A1):c.287C>T(p.Ala96Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000167 in 1,613,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

COL8A1
NM_020351.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.33

Variant links:

Genes affected

COL8A1 (HGNC:2215): (collagen type VIII alpha 1 chain) This gene encodes one of the two alpha chains of type VIII collagen. The gene product is a short chain collagen and a major component of the basement membrane of the corneal endothelium. The type VIII collagen fibril can be either a homo- or a heterotrimer. Alternatively spliced transcript variants encoding the same protein have been observed. [provided by RefSeq, Dec 2011]

COL8A1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.005736083).

BP6

Variant 3-99790969-C-T is Benign according to our data. Variant chr3-99790969-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3042627.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL8A1	NM_020351.4 linkuse as main transcript	c.287C>T	p.Ala96Val	missense_variant	3/4	ENST00000652472.1
COL8A1	NM_001850.5 linkuse as main transcript	c.287C>T	p.Ala96Val	missense_variant	4/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL8A1	ENST00000652472.1 linkuse as main transcript	c.287C>T	p.Ala96Val	missense_variant	3/4		NM_020351.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00327

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000395

AC:

AN:

250932

Hom.:

AF XY:

0.000420

AC XY:

AN XY:

135668

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00522

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000172

AC:

251

AN:

1461070

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

133

AN XY:

726648

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00575

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000125

AC:

AN:

152266

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00328

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000281

Hom.:

Bravo

AF:

0.000295

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000338

AC:

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

COL8A1-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 21, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.28

Cadd

Benign

Dann

Benign

0.67

DEOGEN2

Benign

0.0038

T;T;T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.63

T;.;T;T

M_CAP

Benign

0.022

MetaRNN

Benign

0.0057

T;T;T;T

MetaSVM

Benign

-0.75

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.25

PROVEAN

Benign

0.61

N;N;N;.

REVEL

Benign

0.25

Sift

Benign

1.0

T;T;T;.

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.0

.;B;B;.

Vest4

0.11, 0.11

MVP

0.62

MPC

0.22

ClinPred

0.0038

GERP RS

-2.5

Varity_R

0.026

gMVP

0.069

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over