rs758795377

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP2

The NM_000089.4(COL1A2):ā€‹c.29T>Cā€‹(p.Leu10Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000041 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000041 ( 0 hom. )

Consequence

COL1A2
NM_000089.4 missense

Scores

10
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.42
Variant links:
Genes affected
COL1A2 (HGNC:2198): (collagen type I alpha 2 chain) This gene encodes the pro-alpha2 chain of type I collagen whose triple helix comprises two alpha1 chains and one alpha2 chain. Type I is a fibril-forming collagen found in most connective tissues and is abundant in bone, cornea, dermis and tendon. Mutations in this gene are associated with osteogenesis imperfecta types I-IV, Ehlers-Danlos syndrome type VIIB, recessive Ehlers-Danlos syndrome Classical type, idiopathic osteoporosis, and atypical Marfan syndrome. Symptoms associated with mutations in this gene, however, tend to be less severe than mutations in the gene for the alpha1 chain of type I collagen (COL1A1) reflecting the different role of alpha2 chains in matrix integrity. Three transcripts, resulting from the use of alternate polyadenylation signals, have been identified for this gene. [provided by R. Dalgleish, Feb 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP2
Missense variant in the COL1A2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 437 curated pathogenic missense variants (we use a threshold of 10). The gene has 17 curated benign missense variants. Gene score misZ: 2.1491 (below the threshold of 3.09). Trascript score misZ: 3.5344 (above the threshold of 3.09). GenCC associations: The gene is linked to Ehlers-Danlos/osteogenesis imperfecta syndrome, Ehlers-Danlos syndrome, cardiac valvular type, ehlers-danlos syndrome, arthrochalasia type, 2, Ehlers-Danlos syndrome, arthrochalasia type, osteogenesis imperfecta type 3, high bone mass osteogenesis imperfecta, combined osteogenesis imperfecta and Ehlers-Danlos syndrome 2, osteogenesis imperfecta type 4, osteogenesis imperfecta type 2, osteogenesis imperfecta type 1.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL1A2NM_000089.4 linkc.29T>C p.Leu10Ser missense_variant Exon 1 of 52 ENST00000297268.11 NP_000080.2 P08123A0A0S2Z3H5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL1A2ENST00000297268.11 linkc.29T>C p.Leu10Ser missense_variant Exon 1 of 52 1 NM_000089.4 ENSP00000297268.6 P08123
ENSG00000285090ENST00000644739.1 linkn.69+480A>G intron_variant Intron 1 of 1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251460
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135910
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:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461802
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727188
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:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.077
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.16
T;.
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.80
T;T
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.63
D;D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Uncertain
2.2
M;.
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.60
N;.
REVEL
Uncertain
0.59
Sift
Benign
0.079
T;.
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.44
B;.
Vest4
0.51
MutPred
0.74
Loss of stability (P = 0.0097);Loss of stability (P = 0.0097);
MVP
0.55
MPC
0.35
ClinPred
0.48
T
GERP RS
4.0
Varity_R
0.13
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: rs758795377; hg19: chr7-94024372; API