rs142509363

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_004370.6(COL12A1):​c.8179-10A>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000175 in 1,609,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00095 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000095 ( 0 hom. )

Consequence

COL12A1
NM_004370.6 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.001331
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.544
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 6-75105302-T-C is Benign according to our data. Variant chr6-75105302-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 542514.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000946 (144/152268) while in subpopulation AFR AF= 0.00339 (141/41544). AF 95% confidence interval is 0.00294. There are 0 homozygotes in gnomad4. There are 72 alleles in male gnomad4 subpopulation. Median coverage is 32. 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.8179-10A>G splice_polypyrimidine_tract_variant, intron_variant ENST00000322507.13 NP_004361.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL12A1ENST00000322507.13 linkuse as main transcriptc.8179-10A>G splice_polypyrimidine_tract_variant, intron_variant 1 NM_004370.6 ENSP00000325146 P4Q99715-1

Frequencies

GnomAD3 genomes
AF:
0.000933
AC:
142
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00336
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000183
AC:
45
AN:
246392
Hom.:
0
AF XY:
0.000164
AC XY:
22
AN XY:
133740
show subpopulations
Gnomad AFR exome
AF:
0.00269
Gnomad AMR exome
AF:
0.0000584
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000179
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000947
AC:
138
AN:
1457620
Hom.:
0
Cov.:
29
AF XY:
0.0000786
AC XY:
57
AN XY:
725358
show subpopulations
Gnomad4 AFR exome
AF:
0.00360
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.02e-7
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000946
AC:
144
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.000967
AC XY:
72
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00339
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000855
Hom.:
0
Bravo
AF:
0.00120
Asia WGS
AF:
0.000578
AC:
2
AN:
3474

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 17, 2020- -
Bethlem myopathy 2;C4225314:Ullrich congenital muscular dystrophy 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
14
DANN
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0013
dbscSNV1_RF
Benign
0.16
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: rs142509363; hg19: chr6-75815018; API