rs201651899

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_ModerateBP6_Moderate

The NM_004370.6(COL12A1):ā€‹c.4312A>Gā€‹(p.Ser1438Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,613,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 32)
Exomes š‘“: 0.000017 ( 0 hom. )

Consequence

COL12A1
NM_004370.6 missense

Scores

6
13

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.25
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 Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), COL12A1. . Gene score misZ 2.106 (greater than the threshold 3.09). Trascript score misZ 3.5535 (greater than threshold 3.09). GenCC has associacion of gene with Bethlem myopathy, Bethlem myopathy 2, Ullrich congenital muscular dystrophy 2, Ullrich congenital muscular dystrophy.
BP4
Computational evidence support a benign effect (MetaRNN=0.2561955).
BP6
Variant 6-75147780-T-C is Benign according to our data. Variant chr6-75147780-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 581876.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL12A1NM_004370.6 linkuse as main transcriptc.4312A>G p.Ser1438Gly missense_variant 23/66 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.4312A>G p.Ser1438Gly missense_variant 23/661 NM_004370.6 ENSP00000325146.8 Q99715-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000121
AC:
3
AN:
248380
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
134778
show subpopulations
Gnomad AFR exome
AF:
0.000130
Gnomad AMR exome
AF:
0.00
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:
0.00000887
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1460890
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
726742
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
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:
0.0000216
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152182
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000828
AC:
1
EpiCase
AF:
0.000110
EpiControl
AF:
0.00

ClinVar

Significance: Likely 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
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.12
T;T;.;.;.
Eigen
Benign
-0.033
Eigen_PC
Benign
-0.085
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.92
D;D;D;D;D
M_CAP
Benign
0.037
D
MetaRNN
Benign
0.26
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
.;L;.;L;.
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.0
.;D;D;D;D
REVEL
Benign
0.17
Sift
Uncertain
0.010
.;D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D;D
Polyphen
0.73, 0.53
.;P;P;.;.
Vest4
0.33
MutPred
0.55
.;Loss of glycosylation at S1438 (P = 0.065);.;Loss of glycosylation at S1438 (P = 0.065);Loss of glycosylation at S1438 (P = 0.065);
MVP
0.59
MPC
0.29
ClinPred
0.23
T
GERP RS
3.6
Varity_R
0.25
gMVP
0.43

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: rs201651899; hg19: chr6-75857496; API