8-138594119-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The ENST00000303045.11(COL22A1):c.4513C>T(p.Pro1505Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,576,428 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )
Consequence
COL22A1
ENST00000303045.11 missense
ENST00000303045.11 missense
Scores
3
11
5
Clinical Significance
Conservation
PhyloP100: 7.71
Genes affected
COL22A1 (HGNC:22989): (collagen type XXII alpha 1 chain) This gene encodes member of the collagen family which is thought to contribute to the stabilization of myotendinous junctions and strengthen skeletal muscle attachments during contractile activity. It belongs to the fibril-associated collagens with interrupted triple helix (FACIT) subset of the collagen superfamily, which associate with collagen fibers through their C-terminal collagenous domains and mediate protein-protein interactions through their N-terminal noncollagenous domains. The encoded protein is deposited in the basement membrane zone of the myotendinous junction which is present only at the tissue junctions of muscles, tendons, the heart, articular cartilage, and skin. A knockdown of the orthologous zebrafish gene induces a muscular dystrophy by disruption of the myotendinous junction. [provided by RefSeq, May 2017]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
COL22A1 | NM_152888.3 | c.4513C>T | p.Pro1505Ser | missense_variant | 63/65 | ENST00000303045.11 | NP_690848.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
COL22A1 | ENST00000303045.11 | c.4513C>T | p.Pro1505Ser | missense_variant | 63/65 | 1 | NM_152888.3 | ENSP00000303153 | P1 | |
COL22A1 | ENST00000341807.8 | n.2198C>T | non_coding_transcript_exon_variant | 37/39 | 1 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152208Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000191 AC: 4AN: 209908Hom.: 0 AF XY: 0.0000174 AC XY: 2AN XY: 115136
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GnomAD4 exome AF: 0.0000274 AC: 39AN: 1424220Hom.: 0 Cov.: 31 AF XY: 0.0000268 AC XY: 19AN XY: 708854
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GnomAD4 genome AF: 0.0000394 AC: 6AN: 152208Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74360
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 28, 2022 | The c.4513C>T (p.P1505S) alteration is located in exon 63 (coding exon 62) of the COL22A1 gene. This alteration results from a C to T substitution at nucleotide position 4513, causing the proline (P) at amino acid position 1505 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;.
Eigen
Uncertain
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Uncertain
D
MetaRNN
Uncertain
T;T
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
M;.
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;.
REVEL
Uncertain
Sift
Uncertain
D;.
Sift4G
Uncertain
D;D
Polyphen
D;.
Vest4
MVP
MPC
ClinPred
T
GERP RS
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gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at