rs111609220

Positions:

• chr2-189052153-T-A
• chr2-189052153-T-C

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_Strong BS1 BS2

The ENST00000374866.9(COL5A2):​c.2769+19A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000789 in 1,608,088 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0045 (5 hom., cov: 32)
  • Exomes 𝑓: 0.00040 (2 hom.)
• Consequence: COL5A2 ENST00000374866.9 intron
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: 0.467

Genes affected

COL5A2 (HGNC:2210): (collagen type V alpha 2 chain) This gene encodes an alpha chain for one of the low abundance fibrillar collagens. Fibrillar collagen molecules are trimers that can be composed of one or more types of alpha chains. Type V collagen is found in tissues containing type I collagen and appears to regulate the assembly of heterotypic fibers composed of both type I and type V collagen. This gene product is closely related to type XI collagen and it is possible that the collagen chains of types V and XI constitute a single collagen type with tissue-specific chain combinations. Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -16 ACMG points.

• BP6: Variant 2-189052153-T-A is Benign according to our data. Variant chr2-189052153-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 213080.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 = 0.00451 (687/152310) while in subpopulation AFR AF= 0.0152 (632/41574). AF 95% confidence interval is 0.0142. There are 5 homozygotes in gnomad4. There are 343 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 687 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
COL5A2	NM_000393.5	c.2769+19A>T		intron_variant		ENST00000374866.9	NP_000384.2
COL5A2	XM_011510573.4	c.2631+19A>T		intron_variant			XP_011508875.1
COL5A2	XM_047443251.1	c.2631+19A>T		intron_variant			XP_047299207.1
COL5A2	XM_047443252.1	c.2631+19A>T		intron_variant			XP_047299208.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
COL5A2	ENST00000374866.9	c.2769+19A>T		intron_variant		1	NM_000393.5	ENSP00000364000	P1
COL5A2	ENST00000618828.1	c.1608+19A>T		intron_variant		5		ENSP00000482184

Frequencies

GnomAD3 genomes AF: 0.00447 AC: 680 AN: 152192 Hom.: 4 Cov.: 32

Gnomad AFR AF: 0.0151

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00354

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.00125 AC: 314 AN: 251242 Hom.: 3 AF XY: 0.000979 AC XY: 133 AN XY: 135800

Gnomad AFR exome AF: 0.0166

Gnomad AMR exome AF: 0.00104

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.000978

GnomAD4 exome AF: 0.000400 AC: 582 AN: 1455778 Hom.: 2 Cov.: 29 AF XY: 0.000360 AC XY: 261 AN XY: 724488

Gnomad4 AFR exome AF: 0.0137

Gnomad4 AMR exome AF: 0.00123

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000994

Gnomad4 OTH exome AF: 0.000930

GnomAD4 genome AF: 0.00451 AC: 687 AN: 152310 Hom.: 5 Cov.: 32 AF XY: 0.00461 AC XY: 343 AN XY: 74476

Gnomad4 AFR AF: 0.0152

Gnomad4 AMR AF: 0.00353

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000686 Hom.: 1

Bravo AF: 0.00527

Asia WGS AF: 0.00289 AC: 10 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:3

Benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 30, 2014	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. -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 21, 2023	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

Ehlers-Danlos syndrome, classic type, 2 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Apr 06, 2022

- -

Ehlers-Danlos syndrome, classic type, 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 25, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Uncertain	23
DANN	Benign	0.48

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.60		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.60		Position offset: 6

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs111609220; hg19: chr2-189916879;