rs79505593

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001854.4(COL11A1):​c.2611-4C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0023 in 1,613,910 control chromosomes in the GnomAD database, including 72 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 38 hom., cov: 33)
Exomes 𝑓: 0.0012 ( 34 hom. )

Consequence

COL11A1
NM_001854.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00001765
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.22
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 1-102979108-G-A is Benign according to our data. Variant chr1-102979108-G-A is described in ClinVar as [Benign]. Clinvar id is 258446.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0127 (1929/152282) while in subpopulation AFR AF= 0.0434 (1801/41544). AF 95% confidence interval is 0.0417. There are 38 homozygotes in gnomad4. There are 909 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 38 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL11A1NM_001854.4 linkc.2611-4C>T splice_region_variant, intron_variant Intron 32 of 66 ENST00000370096.9 NP_001845.3 P12107-1Q59HB5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL11A1ENST00000370096.9 linkc.2611-4C>T splice_region_variant, intron_variant Intron 32 of 66 1 NM_001854.4 ENSP00000359114.3 P12107-1

Frequencies

GnomAD3 genomes
AF:
0.0127
AC:
1929
AN:
152164
Hom.:
38
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0435
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00642
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.0120
GnomAD3 exomes
AF:
0.00320
AC:
804
AN:
250894
Hom.:
12
AF XY:
0.00231
AC XY:
313
AN XY:
135648
show subpopulations
Gnomad AFR exome
AF:
0.0449
Gnomad AMR exome
AF:
0.00156
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000123
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.00121
AC:
1775
AN:
1461628
Hom.:
34
Cov.:
32
AF XY:
0.00102
AC XY:
740
AN XY:
727122
show subpopulations
Gnomad4 AFR exome
AF:
0.0441
Gnomad4 AMR exome
AF:
0.00230
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000306
Gnomad4 OTH exome
AF:
0.00243
GnomAD4 genome
AF:
0.0127
AC:
1929
AN:
152282
Hom.:
38
Cov.:
33
AF XY:
0.0122
AC XY:
909
AN XY:
74462
show subpopulations
Gnomad4 AFR
AF:
0.0434
Gnomad4 AMR
AF:
0.00641
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.0118
Alfa
AF:
0.00771
Hom.:
13
Bravo
AF:
0.0149
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Nov 29, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
Nov 14, 2016
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Intervertebral disc disorder;C0265235:Marshall syndrome;C1858084:Stickler syndrome type 2;C3278138:Fibrochondrogenesis 1;C4760307:Hearing loss, autosomal dominant 37 Benign:1
Jul 30, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fibrochondrogenesis 1 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Stickler syndrome type 2 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.79
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000018
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs79505593; hg19: chr1-103444664; API