Genetic Variant COL11A1:c.2556+92T>A (chr1-102984046-A-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBS1BS2

The NM_001854.4(COL11A1):c.2556+92T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00244 in 926,678 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0021 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0025 ( 5 hom. )

Consequence

COL11A1
NM_001854.4 intron

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 0.208

Variant links:

Genes affected

COL11A1 (HGNC:2186): (collagen type XI alpha 1 chain) This gene encodes one of the two alpha chains of type XI collagen, a minor fibrillar collagen. Type XI collagen is a heterotrimer but the third alpha chain is a post-translationally modified alpha 1 type II chain. Mutations in this gene are associated with type II Stickler syndrome and with Marshall syndrome. A single-nucleotide polymorphism in this gene is also associated with susceptibility to lumbar disc herniation. Multiple transcript variants have been identified for this gene. [provided by RefSeq, Nov 2009]

COL11A1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00213 (324/152154) while in subpopulation NFE AF= 0.003 (204/67980). AF 95% confidence interval is 0.00266. There are 0 homozygotes in gnomad4. There are 171 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 5 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL11A1	NM_001854.4 link	c.2556+92T>A		intron_variant	Intron 31 of 66	ENST00000370096.9	NP_001845.3	P12107-1Q59HB5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COL11A1	ENST00000370096.9 link	c.2556+92T>A		intron_variant	Intron 31 of 66	1	NM_001854.4	ENSP00000359114.3		P12107-1

Frequencies

GnomAD3 genomes

AF:

0.00213

AC:

324

AN:

152036

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00603

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00300

Gnomad OTH

AF:

0.00430

GnomAD4 exome

AF:

0.00250

AC:

1940

AN:

774524

Hom.:

AF XY:

0.00246

AC XY:

1008

AN XY:

409874

show subpopulations

Gnomad4 AFR exome

AF:

0.000315

Gnomad4 AMR exome

AF:

0.00147

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000506

Gnomad4 FIN exome

AF:

0.00460

Gnomad4 NFE exome

AF:

0.00304

Gnomad4 OTH exome

AF:

0.00229

GnomAD4 genome

AF:

0.00213

AC:

324

AN:

152154

Hom.:

Cov.:

AF XY:

0.00230

AC XY:

171

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.000530

Gnomad4 AMR

AF:

0.00131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00603

Gnomad4 NFE

AF:

0.00300

Gnomad4 OTH

AF:

0.00426

Alfa

AF:

0.00264

Hom.:

Bravo

AF:

0.00176

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:2

Feb 04, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 06, 2022

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 08, 2019

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 12673280) -

Mar 03, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

2.1

DANN

Benign

0.35

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.

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