chr9-98986000-G-A
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_001855.5(COL15A1):c.536G>A(p.Cys179Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,220 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Consequence
COL15A1
NM_001855.5 missense
NM_001855.5 missense
Scores
9
6
4
Clinical Significance
Conservation
PhyloP100: 9.92
Genes affected
COL15A1 (HGNC:2192): (collagen type XV alpha 1 chain) This gene encodes the alpha chain of type XV collagen, a member of the FACIT collagen family (fibril-associated collagens with interrupted helices). Type XV collagen has a wide tissue distribution but the strongest expression is localized to basement membrane zones so it may function to adhere basement membranes to underlying connective tissue stroma. The proteolytically produced C-terminal fragment of type XV collagen is restin, a potentially antiangiogenic protein that is closely related to endostatin. Mouse studies have shown that collagen XV deficiency is associated with muscle and microvessel deterioration. [provided by RefSeq, May 2013]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.874
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL15A1 | NM_001855.5 | c.536G>A | p.Cys179Tyr | missense_variant | 3/42 | ENST00000375001.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL15A1 | ENST00000375001.8 | c.536G>A | p.Cys179Tyr | missense_variant | 3/42 | 1 | NM_001855.5 | P1 | |
COL15A1 | ENST00000471477.1 | n.959G>A | non_coding_transcript_exon_variant | 3/3 | 2 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000119 AC: 3AN: 251370Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135882
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GnomAD4 exome Cov.: 34
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74368
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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 | Mar 31, 2022 | The c.536G>A (p.C179Y) alteration is located in exon 3 (coding exon 3) of the COL15A1 gene. This alteration results from a G to A substitution at nucleotide position 536, causing the cysteine (C) at amino acid position 179 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
Cadd
Pathogenic
Dann
Uncertain
DEOGEN2
Uncertain
D;T
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;T
M_CAP
Benign
D
MetaRNN
Pathogenic
D;D
MetaSVM
Benign
T
MutationAssessor
Pathogenic
M;.
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;.
REVEL
Uncertain
Sift
Pathogenic
D;.
Sift4G
Pathogenic
D;D
Polyphen
D;.
Vest4
MutPred
Gain of disorder (P = 0.0953);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
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