6-75165718-A-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004370.6(COL12A1):c.2772T>C(p.Tyr924Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00439 in 1,614,006 control chromosomes in the GnomAD database, including 229 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.023 ( 123 hom., cov: 32)

Exomes 𝑓: 0.0025 ( 106 hom. )

Consequence

COL12A1
NM_004370.6 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.162

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

Bethlem myopathy 2
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
Bethlem myopathy 2
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Illumina, Genomics England PanelApp
Ullrich congenital muscular dystrophy 2
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Bethlem myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Ullrich congenital muscular dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

COL12A1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant 6-75165718-A-G is Benign according to our data. Variant chr6-75165718-A-G is described in ClinVar as Benign. ClinVar VariationId is 259327.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0764 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL12A1	NM_004370.6 link	c.2772T>C	p.Tyr924Tyr	synonymous_variant	Exon 14 of 66	ENST00000322507.13	NP_004361.3	Q99715-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL12A1	ENST00000322507.13 link	c.2772T>C	p.Tyr924Tyr	synonymous_variant	Exon 14 of 66	1	NM_004370.6	ENSP00000325146.8	Q99715-1
COL12A1	ENST00000345356.10 link	c.74-13236T>C		intron_variant	Intron 2 of 50	1		ENSP00000305147.9	Q99715-2
COL12A1	ENST00000483888.6 link	c.2772T>C	p.Tyr924Tyr	synonymous_variant	Exon 14 of 65	5		ENSP00000421216.1	D6RGG3
COL12A1	ENST00000416123.6 link	c.2772T>C	p.Tyr924Tyr	synonymous_variant	Exon 13 of 63	5		ENSP00000412864.2	Q99715-4

Frequencies

GnomAD3 genomes

AF:

0.0229

AC:

3490

AN:

152168

Hom.:

123

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0787

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0109

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.0191

GnomAD2 exomes

AF:

0.00615

AC:

1533

AN:

249310

AF XY:

0.00461

show subpopulations

Gnomad AFR exome

AF:

0.0827

Gnomad AMR exome

AF:

0.00519

Gnomad ASJ exome

AF:

0.00109

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000345

Gnomad OTH exome

AF:

0.00298

GnomAD4 exome

AF:

0.00246

AC:

3591

AN:

1461720

Hom.:

106

Cov.:

AF XY:

0.00215

AC XY:

1561

AN XY:

727158

show subpopulations

African (AFR)

AF:

0.0822

AC:

2751

AN:

33474

American (AMR)

AF:

0.00615

AC:

275

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.000174

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00503

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000176

AC:

196

AN:

1111898

Other (OTH)

AF:

0.00488

AC:

295

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

194

388

583

777

971

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

196

294

392

490

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0230

AC:

3496

AN:

152286

Hom.:

123

Cov.:

AF XY:

0.0221

AC XY:

1648

AN XY:

74462

show subpopulations

African (AFR)

AF:

0.0786

AC:

3268

AN:

41556

American (AMR)

AF:

0.0109

AC:

166

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00173

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000206

AC:

AN:

68022

Other (OTH)

AF:

0.0189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

169

337

506

674

843

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

108

144

180

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00977

Hom.:

Bravo

AF:

0.0268

Asia WGS

AF:

0.00549

AC:

AN:

3478

EpiCase

AF:

0.000436

EpiControl

AF:

0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Jul 05, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Bethlem myopathy 2;C4225314:Ullrich congenital muscular dystrophy 2

Benign:1

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.62

CADD

Benign

4.9

(source)

DANN

Benign

0.33

PhyloP100

-0.16

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over