9-134641909-TGGAGGAGGA-TGGAGGAGGAGGAGGAGGAGGA

Variant names:

• chr9-134641909-T-TGGAGGAGGAGGA
• NM_000093.5:c.-270_-259dupAGGAGGAGGAGG

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000093.5(COL5A1):​c.-270_-259dupAGGAGGAGGAGG variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000455 in 219,786 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000045 (0 hom.)
• Consequence: COL5A1 NM_000093.5 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0930

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 Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL5A1	NM_000093.5	c.-270_-259dupAGGAGGAGGAGG		5_prime_UTR_variant	Exon 1 of 66	ENST00000371817.8	NP_000084.3
COL5A1	NM_001278074.1	c.-270_-259dupAGGAGGAGGAGG		5_prime_UTR_variant	Exon 1 of 66		NP_001265003.1
COL5A1	XM_017014266.3	c.-270_-259dupAGGAGGAGGAGG		5_prime_UTR_variant	Exon 1 of 65		XP_016869755.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COL5A1	ENST00000371817	c.-270_-259dupAGGAGGAGGAGG		5_prime_UTR_variant	Exon 1 of 66	1	NM_000093.5	ENSP00000360882.3
COL5A1	ENST00000371820	c.-270_-259dupAGGAGGAGGAGG		5_prime_UTR_variant	Exon 1 of 66	2		ENSP00000360885.4

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 0.00000455 AC: 1 AN: 219786 Hom.: 0 Cov.: 0 AF XY: 0.00000893 AC XY: 1 AN XY: 112028

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: 0.000366

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-137533755;