Variant 6-75181017-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_004370.6(COL12A1):c.2086T>C(p.Leu696=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00248 in 1,614,050 control chromosomes in the GnomAD database, including 88 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 40 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 48 hom. )

Consequence

COL12A1
NM_004370.6 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.526

Variant links:

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]

COL12A1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.77).

BP6

Variant 6-75181017-A-G is Benign according to our data. Variant chr6-75181017-A-G is described in ClinVar as [Benign]. Clinvar id is 259324.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-75181017-A-G is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=0.526 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.013 (1974/152174) while in subpopulation AFR AF= 0.0454 (1886/41498). AF 95% confidence interval is 0.0437. There are 40 homozygotes in gnomad4. There are 941 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 40 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL12A1	NM_004370.6 linkuse as main transcript	c.2086T>C	p.Leu696=	synonymous_variant	11/66	ENST00000322507.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL12A1	ENST00000322507.13 linkuse as main transcript	c.2086T>C	p.Leu696=	synonymous_variant	11/66	1	NM_004370.6	P4	Q99715-1

Frequencies

GnomAD3 genomes

AF:

0.0130

AC:

1970

AN:

152056

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0455

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00452

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00383

GnomAD3 exomes

AF:

0.00349

AC:

870

AN:

249350

Hom.:

AF XY:

0.00268

AC XY:

362

AN XY:

135276

show subpopulations

Gnomad AFR exome

AF:

0.0488

Gnomad AMR exome

AF:

0.00241

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.00182

GnomAD4 exome

AF:

0.00139

AC:

2025

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00116

AC XY:

840

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.0465

Gnomad4 AMR exome

AF:

0.00264

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000971

Gnomad4 OTH exome

AF:

0.00351

GnomAD4 genome

AF:

0.0130

AC:

1974

AN:

152174

Hom.:

Cov.:

AF XY:

0.0126

AC XY:

941

AN XY:

74394

show subpopulations

Gnomad4 AFR

AF:

0.0454

Gnomad4 AMR

AF:

0.00452

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00379

Alfa

AF:

0.00628

Hom.:

Bravo

AF:

0.0152

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Aug 15, 2019

- -

Bethlem myopathy 2;C4225314:Ullrich congenital muscular dystrophy 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

9.3

DANN

Benign

0.70

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over