1-31653629-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001856.4(COL16A1):​c.4582G>T​(p.Ala1528Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,706 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

COL16A1
NM_001856.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.34
Variant links:
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=0.18572536).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL16A1NM_001856.4 linkuse as main transcriptc.4582G>T p.Ala1528Ser missense_variant 70/71 ENST00000373672.8 NP_001847.3 Q07092-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL16A1ENST00000373672.8 linkuse as main transcriptc.4582G>T p.Ala1528Ser missense_variant 70/715 NM_001856.4 ENSP00000362776.3 Q07092-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461706
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 submitterclinical testingAmbry GeneticsSep 10, 2024The c.4582G>T (p.A1528S) alteration is located in exon 70 (coding exon 69) of the COL16A1 gene. This alteration results from a G to T substitution at nucleotide position 4582, causing the alanine (A) at amino acid position 1528 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0073
T
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.016
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.083
D
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.38
T
MutationAssessor
Benign
0.76
N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
0.10
N
REVEL
Benign
0.25
Sift
Benign
0.73
T
Sift4G
Benign
0.28
T
Polyphen
0.10
B
Vest4
0.17
MutPred
0.30
Gain of glycosylation at A1528 (P = 0.0044);
MVP
0.77
MPC
0.39
ClinPred
0.94
D
GERP RS
4.3
Varity_R
0.030
gMVP
0.11

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-32119230; API