6-75181216-T-TAA

Position:

• chr6-75181216-T-TAA

Variant summary

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

The NM_004370.6(COL12A1):​c.1892-6_1892-5insTT variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000648 in 1,389,228 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: 25)
  • Exomes 𝑓: 0.0000065 (0 hom.)
• Consequence: COL12A1 NM_004370.6 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.52

Genes affected

COL12A1 (HGNC:2188): (collagen type XII alpha 1 chain) This gene encodes the alpha chain of type XII collagen, a member of the FACIT (fibril-associated collagens with interrupted triple helices) collagen family. Type XII collagen is a homotrimer found in association with type I collagen, an association that is thought to modify the interactions between collagen I fibrils and the surrounding matrix. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL12A1	NM_004370.6	c.1892-6_1892-5insTT		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000322507.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL12A1	ENST00000322507.13	c.1892-6_1892-5insTT		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_004370.6	P4

Frequencies

GnomAD3 genomes Cov.: 25

GnomAD3 exomes AF: 0.00000971 AC: 1 AN: 103032 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 55584

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.000352

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000648 AC: 9 AN: 1389228 Hom.: 0 Cov.: 28 AF XY: 0.00000581 AC XY: 4 AN XY: 688832

Gnomad4 AFR exome AF: 0.0000331

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000420

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000131

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000558

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 25

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

LitVar

Other links and lift over

dbSNP: rs752652515; hg19: chr6-75890932;