rs1554226286

chr6-33189461-G-Achr6-33189461-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP6_Moderate

The NM_080680.3(COL11A2):c.91C>T(p.Pro31Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,762 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P31P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: COL11A2 NM_080680.3 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.44

Genes affected

COL11A2 (HGNC:2187): (collagen type XI alpha 2 chain) This gene encodes one of the two alpha chains of type XI collagen, a minor fibrillar collagen. It is located on chromosome 6 very close to but separate from the gene for retinoid X receptor beta. Type XI collagen is a heterotrimer but the third alpha chain is a post-translationally modified alpha 1 type II chain. Proteolytic processing of this type XI chain produces PARP, a proline/arginine-rich protein that is an amino terminal domain. Mutations in this gene are associated with type III Stickler syndrome, otospondylomegaepiphyseal dysplasia (OSMED syndrome), Weissenbacher-Zweymuller syndrome, autosomal dominant non-syndromic sensorineural type 13 deafness (DFNA13), and autosomal recessive non-syndromic sensorineural type 53 deafness (DFNB53). Alternative splicing results in multiple transcript variants. A related pseudogene is located nearby on chromosome 6. [provided by RefSeq, Jul 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, COL11A2
• BP6: Variant 6-33189461-G-A is Benign according to our data. Variant chr6-33189461-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 547212.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL11A2	NM_080680.3	c.91C>T	p.Pro31Ser	missense_variant	2/66	ENST00000341947.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL11A2	ENST00000341947.7	c.91C>T	p.Pro31Ser	missense_variant	2/66	5	NM_080680.3	P4
COL11A2	ENST00000395194.1	c.91C>T	p.Pro31Ser	missense_variant	2/5	1
COL11A2	ENST00000374708.8	c.91C>T	p.Pro31Ser	missense_variant	2/64	5		A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460762 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 726700

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Connective tissue disorder Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Nov 01, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.083
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
Cadd	Benign	17
Dann	Uncertain	0.97
DEOGEN2	Benign	0.076	T;T;.;T;.
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.35
FATHMM_MKL	Uncertain	0.78	D
M_CAP	Benign	0.029	D
MetaRNN	Uncertain	0.70	D;D;D;D;D
MetaSVM	Benign	-0.96	T
MutationTaster	Benign	0.97	D;N;N;N;N;N;N;N;N
PrimateAI	Uncertain	0.57	T
PROVEAN	Pathogenic	-4.6	D;D;D;D;D
REVEL	Benign	0.16
Sift	Benign	0.17	T;D;T;T;T
Sift4G	Uncertain	0.038	D;D;D;D;T
Vest4		0.15
MutPred		0.80		Loss of catalytic residue at P30 (P = 0.0131);Loss of catalytic residue at P30 (P = 0.0131);Loss of catalytic residue at P30 (P = 0.0131);Loss of catalytic residue at P30 (P = 0.0131);Loss of catalytic residue at P30 (P = 0.0131);
MVP		0.33
MPC		0.35
ClinPred		0.85	D
GERP RS		1.6
gMVP		0.34

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

Other links and lift over

dbSNP: rs1554226286; hg19: chr6-33157238; COSMIC: COSV59493786; COSMIC: COSV59493786;