2-189002994-GCTCCGGGTGAGAAAGGTGAAGGAGGCC-G

Position:

• chr2-189002994-GCTCCGGGTGAGAAAGGTGAAGGAGGCC-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PM4 PP3 PP5

The NM_000090.4(COL3A1):​c.2490_2516del​(p.Glu832_Gly840del) variant causes a 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 Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: COL3A1 NM_000090.4 inframe_deletion
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.74

Genes affected

COL3A1 (HGNC:2201): (collagen type III alpha 1 chain) This gene encodes the pro-alpha1 chains of type III collagen, a fibrillar collagen that is found in extensible connective tissues such as skin, lung, uterus, intestine and the vascular system, frequently in association with type I collagen. Mutations in this gene are associated with Ehlers-Danlos syndrome type IV, and with aortic and arterial aneurysms. [provided by R. Dalgleish, Feb 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_000090.4.
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
• PP5: Variant 2-189002994-GCTCCGGGTGAGAAAGGTGAAGGAGGCC-G is Pathogenic according to our data. Variant chr2-189002994-GCTCCGGGTGAGAAAGGTGAAGGAGGCC-G is described in ClinVar as [Pathogenic]. Clinvar id is 17214.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
COL3A1	NM_000090.4	c.2490_2516del	p.Glu832_Gly840del	inframe_deletion	36/51	ENST00000304636.9	NP_000081.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
COL3A1	ENST00000304636.9	c.2490_2516del	p.Glu832_Gly840del	inframe_deletion	36/51	1	NM_000090.4	ENSP00000304408	P1
COL3A1	ENST00000450867.2	c.2391_2417del	p.Glu799_Gly807del	inframe_deletion	35/50	1		ENSP00000415346

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Ehlers-Danlos syndrome, type 4 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 1992

- -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs397509374; hg19: chr2-189867720;