chr6-75152418-G-A

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_004370.6(COL12A1):​c.3630C>T​(p.Ile1210=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000213 in 1,613,624 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 2 hom. )

Consequence

COL12A1
NM_004370.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.22
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 -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP6
Variant 6-75152418-G-A is Benign according to our data. Variant chr6-75152418-G-A is described in ClinVar as [Benign]. Clinvar id is 542504.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.22 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000138 (21/152226) while in subpopulation SAS AF= 0.00352 (17/4824). AF 95% confidence interval is 0.00224. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL12A1NM_004370.6 linkuse as main transcriptc.3630C>T p.Ile1210= synonymous_variant 18/66 ENST00000322507.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL12A1ENST00000322507.13 linkuse as main transcriptc.3630C>T p.Ile1210= synonymous_variant 18/661 NM_004370.6 P4Q99715-1
COL12A1ENST00000345356.10 linkuse as main transcriptc.138C>T p.Ile46= synonymous_variant 3/511 Q99715-2
COL12A1ENST00000483888.6 linkuse as main transcriptc.3630C>T p.Ile1210= synonymous_variant 18/655 A1
COL12A1ENST00000416123.6 linkuse as main transcriptc.3630C>T p.Ile1210= synonymous_variant 17/635 Q99715-4

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152108
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00352
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000398
AC:
99
AN:
248818
Hom.:
0
AF XY:
0.000556
AC XY:
75
AN XY:
134966
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000112
Gnomad SAS exome
AF:
0.00307
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.000220
AC:
322
AN:
1461398
Hom.:
2
Cov.:
31
AF XY:
0.000327
AC XY:
238
AN XY:
727030
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00303
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000315
Gnomad4 OTH exome
AF:
0.000348
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74424
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00352
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000128
Hom.:
0
Bravo
AF:
0.0000491
Asia WGS
AF:
0.00346
AC:
12
AN:
3478
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bethlem myopathy 2;C4225314:Ullrich congenital muscular dystrophy 2 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 22, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.64
CADD
Benign
5.4
DANN
Benign
0.74

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: rs572531941; hg19: chr6-75862134; API