NM_000393.5:c.*2062G>A

Variant names:

• chr2-189032008-C-T
• rs77821675
• NM_000393.5:c.*2062G>A

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_000393.5(COL5A2):​c.*2062G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0125 in 152,142 control chromosomes in the GnomAD database, including 49 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.012 (49 hom., cov: 32)
  • Failed GnomAD Quality Control
• Consequence: COL5A2 NM_000393.5 3_prime_UTR
• Clinical Significance: Benign/Likely benign criteria provided, single submitter B:2
• Conservation: PhyloP100: -0.00600
• Publications: 1 publications found

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]

COL5A2 Gene-Disease associations (from GenCC):

• Ehlers-Danlos syndrome

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• Ehlers-Danlos syndrome, classic type

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• Ehlers-Danlos syndrome, classic type, 2

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.55).
• BP6: Variant 2-189032008-C-T is Benign according to our data. Variant chr2-189032008-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 333094.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0125 (1899/152142) while in subpopulation AFR AF = 0.0422 (1752/41520). AF 95% confidence interval is 0.0406. There are 49 homozygotes in GnomAd4. There are 911 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAd4 at 1899 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000393.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL5A2	NM_000393.5	MANE Select	c.*2062G>A		3_prime_UTR	Exon 54 of 54	NP_000384.2	P05997

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL5A2	ENST00000374866.9	TSL:1 MANE Select	c.*2062G>A		3_prime_UTR	Exon 54 of 54	ENSP00000364000.3	P05997
	COL5A2	ENST00000618828.1	TSL:5	c.*2062G>A		3_prime_UTR	Exon 47 of 47	ENSP00000482184.1	A0A087WYX9

Frequencies

GnomAD3 genomes AF: 0.0124 AC: 1884 AN: 152024 Hom.: 47 Cov.: 32

Gnomad AFR AF: 0.0419

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00551

Gnomad ASJ AF: 0.00144

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.000456

Gnomad OTH AF: 0.0110

GnomAD4 exome Data not reliable, filtered out with message: AC0 AC: 0 AN: 0 Hom.: 0 Cov.: 0 AC XY: 0 AN XY: 0

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AC: 0 AN: 0

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.0125 AC: 1899 AN: 152142 Hom.: 49 Cov.: 32 AF XY: 0.0122 AC XY: 911 AN XY: 74376

African (AFR) AF: 0.0422 AC: 1752 AN: 41520

American (AMR) AF: 0.00550 AC: 84 AN: 15266

Ashkenazi Jewish (ASJ) AF: 0.00144 AC: 5 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5174

South Asian (SAS) AF: 0.000208 AC: 1 AN: 4816

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10598

Middle Eastern (MID) AF: 0.0103 AC: 3 AN: 292

European-Non Finnish (NFE) AF: 0.000456 AC: 31 AN: 67992

Other (OTH) AF: 0.0109 AC: 23 AN: 2106

Alfa AF: 0.00365 Hom.: 5

Bravo AF: 0.0141

Asia WGS AF: 0.00578 AC: 20 AN: 3472

ClinVar

ClinVar submissions

Significance: Benign/Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Ehlers-Danlos syndrome type 7A (1)
-	-	1	Ehlers-Danlos syndrome, classic type, 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.55
CADD	Benign	4.6
DANN	Benign	0.58
PhyloP100		-0.0060
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs77821675; hg19: chr2-189896734;