rs1554726245

Variant names:

• chr9-134834981-TGGACGCCGA-T
• rs1554726245
• NM_000093.5:c.5150_5158delACGCCGAGG

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PM4 PP3 PP5_Moderate

The NM_000093.5(COL5A1):​c.5150_5158delACGCCGAGG​(p.Asp1717_Glu1719del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. D1717D) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: COL5A1 NM_000093.5 disruptive_inframe_deletion
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.78
• Publications: 0 publications found

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: Genomics England PanelApp, Ambry Genetics, ClinGen, Orphanet
• 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

LOC101448202 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_000093.5.
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
• PP5: Variant 9-134834981-TGGACGCCGA-T is Pathogenic according to our data. Variant chr9-134834981-TGGACGCCGA-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 523326.Status of the report is criteria_provided_single_submitter, 1 stars.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL5A1	NM_000093.5	MANE Select	c.5150_5158delACGCCGAGG	p.Asp1717_Glu1719del	disruptive_inframe_deletion	Exon 65 of 66	NP_000084.3
	COL5A1	NM_001278074.1		c.5150_5158delACGCCGAGG	p.Asp1717_Glu1719del	disruptive_inframe_deletion	Exon 65 of 66	NP_001265003.1	P20908-2
	LOC101448202	NR_103451.2		n.71-14781_71-14773delTCGGCGTCC		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COL5A1	ENST00000371817.8	TSL:1 MANE Select	c.5150_5158delACGCCGAGG	p.Asp1717_Glu1719del	disruptive_inframe_deletion	Exon 65 of 66	ENSP00000360882.3	P20908-1
	COL5A1	ENST00000371820.4	TSL:2	c.5150_5158delACGCCGAGG	p.Asp1717_Glu1719del	disruptive_inframe_deletion	Exon 65 of 66	ENSP00000360885.4	P20908-2
	COL5A1	ENST00000950240.1		c.5141_5149delACGCCGAGG	p.Asp1714_Glu1716del	disruptive_inframe_deletion	Exon 65 of 66	ENSP00000620299.1

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Atrophic scars;C0241074:Hyperextensible skin;C1844820:Joint hypermobility;C1851828:Cigarette-paper scars;C4025260:Large joint dislocations (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.8

Splicing

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

Other links and lift over

dbSNP: rs1554726245; hg19: chr9-137726827;