6-75095135-T-C

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_004370.6(COL12A1):ā€‹c.8622A>Gā€‹(p.Pro2874Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000378 in 1,614,082 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00024 ( 0 hom., cov: 32)
Exomes š‘“: 0.00039 ( 1 hom. )

Consequence

COL12A1
NM_004370.6 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.00
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 6-75095135-T-C is Benign according to our data. Variant chr6-75095135-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 475904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1 with no splicing effect.
BS1
Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.000392 (573/1461832) while in subpopulation MID AF= 0.00121 (7/5768). AF 95% confidence interval is 0.000569. There are 1 homozygotes in gnomad4_exome. There are 265 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL12A1NM_004370.6 linkuse as main transcriptc.8622A>G p.Pro2874Pro synonymous_variant 60/66 ENST00000322507.13 NP_004361.3 Q99715-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL12A1ENST00000322507.13 linkuse as main transcriptc.8622A>G p.Pro2874Pro synonymous_variant 60/661 NM_004370.6 ENSP00000325146.8 Q99715-1

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152250
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000389
AC:
97
AN:
249446
Hom.:
0
AF XY:
0.000406
AC XY:
55
AN XY:
135312
show subpopulations
Gnomad AFR exome
AF:
0.000194
Gnomad AMR exome
AF:
0.000783
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.000521
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.000392
AC:
573
AN:
1461832
Hom.:
1
Cov.:
30
AF XY:
0.000364
AC XY:
265
AN XY:
727200
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000738
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000243
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000424
Gnomad4 OTH exome
AF:
0.000580
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.000589
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000409
Hom.:
0
Bravo
AF:
0.000389
EpiCase
AF:
0.00104
EpiControl
AF:
0.000415

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2024COL12A1: BP4, BP7 -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 08, 2021- -
Bethlem myopathy 2;C4225314:Ullrich congenital muscular dystrophy 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
5.3
DANN
Benign
0.79

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.

Other links and lift over

dbSNP: rs368321891; hg19: chr6-75804851; API