chr9-134732088-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_ModerateBP6BP7BS2

The NM_000093.5(COL5A1):c.1350C>T(p.Gly450Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000136 in 1,614,182 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G450G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 1 hom. )

Consequence

COL5A1
NM_000093.5 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:6

Conservation

PhyloP100: -4.07

Publications

1 publications found

Variant links:

Genes affected

COL5A1 (HGNC:2209): (collagen type V alpha 1 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. The encoded procollagen protein occurs commonly as the heterotrimer pro-alpha1(V)-pro-alpha1(V)-pro-alpha2(V). Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

COL5A1 Gene-Disease associations (from GenCC):

Ehlers-Danlos syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
Ehlers-Danlos syndrome, classic type
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Ambry Genetics, PanelApp Australia, Genomics England PanelApp
Ehlers-Danlos syndrome, classic type, 1
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
arterial disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

COL5A1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.32).

BP6

Variant 9-134732088-C-T is Benign according to our data. Variant chr9-134732088-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 212929.

BP7

Synonymous conserved (PhyloP=-4.07 with no splicing effect.

BS2

High AC in GnomAd4 at 22 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000093.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL5A1	NM_000093.5	MANE Select	c.1350C>T	p.Gly450Gly	synonymous	Exon 9 of 66	NP_000084.3
	COL5A1	NM_001278074.1		c.1350C>T	p.Gly450Gly	synonymous	Exon 9 of 66	NP_001265003.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
COL5A1	ENST00000371817.8	TSL:1 MANE Select	c.1350C>T	p.Gly450Gly	synonymous	Exon 9 of 66	ENSP00000360882.3
COL5A1	ENST00000371820.4	TSL:2	c.1350C>T	p.Gly450Gly	synonymous	Exon 9 of 66	ENSP00000360885.4
COL5A1	ENST00000950240.1		c.1341C>T	p.Gly447Gly	synonymous	Exon 9 of 66	ENSP00000620299.1

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00403

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.000211

AC:

AN:

251486

AF XY:

0.000199

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00318

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000105

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000135

AC:

198

AN:

1461872

Hom.:

Cov.:

AF XY:

0.000136

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00371

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000630

AC:

AN:

1111990

Other (OTH)

AF:

0.000315

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.434

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000144

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41564

American (AMR)

AF:

0.0000654

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00403

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68016

Other (OTH)

AF:

0.000945

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000388

Hom.:

Bravo

AF:

0.000132

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (2)

COL5A1-related disorder (1)

Connective tissue disorder (1)

Ehlers-Danlos syndrome type 7A (1)

Ehlers-Danlos syndrome, classic type (1)

Ehlers-Danlos syndrome, classic type, 1 (1)

Familial thoracic aortic aneurysm and aortic dissection (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.32

CADD

Benign

6.4

(source)

DANN

Benign

0.72

PhyloP100

-4.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over