6-75113301-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_004370.6(COL12A1):​c.7853C>A​(p.Thr2618Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000716 in 1,396,012 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. T2618T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

COL12A1
NM_004370.6 missense

Scores

3
9
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.22
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL12A1NM_004370.6 linkuse as main transcriptc.7853C>A p.Thr2618Lys missense_variant 51/66 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.7853C>A p.Thr2618Lys missense_variant 51/661 NM_004370.6 ENSP00000325146.8 Q99715-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000484
AC:
1
AN:
206788
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
113724
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000522
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.16e-7
AC:
1
AN:
1396012
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
693286
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.0000204
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.037
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.10
.;T;D;.;.;.;T
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;D;T;D;D;T;D
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.54
D;D;D;D;D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
.;.;M;.;M;.;.
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-4.3
D;.;D;D;D;D;D
REVEL
Benign
0.24
Sift
Uncertain
0.0040
D;.;D;D;D;D;D
Sift4G
Uncertain
0.0060
D;D;D;D;D;D;D
Polyphen
0.99, 0.99
.;.;D;D;.;.;.
Vest4
0.46, 0.59, 0.67, 0.71, 0.67
MutPred
0.53
.;.;Gain of ubiquitination at T2618 (P = 0.0258);.;Gain of ubiquitination at T2618 (P = 0.0258);Gain of ubiquitination at T2618 (P = 0.0258);.;
MVP
0.63
MPC
1.1
ClinPred
0.88
D
GERP RS
5.8
Varity_R
0.49
gMVP
0.83

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: rs201988277; hg19: chr6-75823017; API