chr1-31665194-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_001856.4(COL16A1):c.3533C>T(p.Pro1178Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000624 in 1,603,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )
Consequence
COL16A1
NM_001856.4 missense
NM_001856.4 missense
Scores
8
11
Clinical Significance
Conservation
PhyloP100: 1.58
Genes affected
COL16A1 (HGNC:2193): (collagen type XVI alpha 1 chain) This gene encodes the alpha chain of type XVI collagen, a member of the FACIT collagen family (fibril-associated collagens with interrupted helices). Members of this collagen family are found in association with fibril-forming collagens such as type I and II, and serve to maintain the integrity of the extracellular matrix. High levels of type XVI collagen have been found in fibroblasts and keratinocytes, and in smooth muscle and amnion. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 0 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.24201253).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL16A1 | NM_001856.4 | c.3533C>T | p.Pro1178Leu | missense_variant | 56/71 | ENST00000373672.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL16A1 | ENST00000373672.8 | c.3533C>T | p.Pro1178Leu | missense_variant | 56/71 | 5 | NM_001856.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152198Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000842 AC: 2AN: 237542Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 129292
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GnomAD4 exome AF: 0.00000551 AC: 8AN: 1451154Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 722030
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152198Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74356
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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 17, 2023 | The c.3533C>T (p.P1178L) alteration is located in exon 56 (coding exon 55) of the COL16A1 gene. This alteration results from a C to T substitution at nucleotide position 3533, causing the proline (P) at amino acid position 1178 to be replaced by a leucine (L). 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
Uncertain
D
BayesDel_noAF
Uncertain
CADD
Benign
DANN
Benign
DEOGEN2
Benign
T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;T
M_CAP
Uncertain
D
MetaRNN
Benign
T;T
MetaSVM
Uncertain
D
MutationAssessor
Benign
L;.
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Uncertain
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
B;.
Vest4
MVP
MPC
ClinPred
T
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
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