9-134641941-T-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_000093.5(COL5A1):c.-247T>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.996 in 388,654 control chromosomes in the GnomAD database, including 192,911 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 1.0 (75495 hom., cov: 32)
  • Exomes 𝑓: 1.0 (117416 hom.)
• Consequence: COL5A1 NM_000093.5 5_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: 1.55

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]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BP6: Variant 9-134641941-T-G is Benign according to our data. Variant chr9-134641941-T-G is described in ClinVar as [Benign]. Clinvar id is 365701.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.991 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL5A1	NM_000093.5	c.-247T>G		5_prime_UTR_variant	1/66	ENST00000371817.8
COL5A1	NM_001278074.1	c.-247T>G		5_prime_UTR_variant	1/66
COL5A1	XM_017014266.3	c.-247T>G		5_prime_UTR_variant	1/65

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL5A1	ENST00000371817.8	c.-247T>G		5_prime_UTR_variant	1/66	1	NM_000093.5	P4
COL5A1	ENST00000371820.4	c.-247T>G		5_prime_UTR_variant	1/66	2		A2

Frequencies

GnomAD3 genomes AF: 0.997 AC: 151377 AN: 151874 Hom.: 75441 Cov.: 32

Gnomad AFR AF: 0.999

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.999

Gnomad ASJ AF: 0.998

Gnomad EAS AF: 1.00

Gnomad SAS AF: 1.00

Gnomad FIN AF: 1.00

Gnomad MID AF: 1.00

Gnomad NFE AF: 0.994

Gnomad OTH AF: 0.997

GnomAD4 exome AF: 0.996 AC: 235749 AN: 236672 Hom.: 117416 Cov.: 2 AF XY: 0.996 AC XY: 119931 AN XY: 120404

Gnomad4 AFR exome AF: 0.999

Gnomad4 AMR exome AF: 0.999

Gnomad4 ASJ exome AF: 0.998

Gnomad4 EAS exome AF: 1.00

Gnomad4 SAS exome AF: 1.00

Gnomad4 FIN exome AF: 1.00

Gnomad4 NFE exome AF: 0.995

Gnomad4 OTH exome AF: 0.996

GnomAD4 genome AF: 0.997 AC: 151485 AN: 151982 Hom.: 75495 Cov.: 32 AF XY: 0.997 AC XY: 74078 AN XY: 74280

Gnomad4 AFR AF: 0.999

Gnomad4 AMR AF: 0.999

Gnomad4 ASJ AF: 0.998

Gnomad4 EAS AF: 1.00

Gnomad4 SAS AF: 1.00

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.994

Gnomad4 OTH AF: 0.997

Alfa AF: 0.996 Hom.: 3300

Bravo AF: 0.997

Asia WGS AF: 0.999 AC: 3456 AN: 3458

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Fibromuscular dysplasia, multifocal Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Mar 15, 2022

- -

Ehlers-Danlos syndrome type 7A Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 14, 2018

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. -

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

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Mar 15, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
Cadd	Benign	16
Dann	Benign	0.81

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: rs71483234; hg19: chr9-137533787;