chr1-31662642-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001856.4(COL16A1):​c.3572G>A​(p.Arg1191Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000122 in 1,398,508 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000012 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

COL16A1
NM_001856.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.61
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04992202).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL16A1NM_001856.4 linkuse as main transcriptc.3572G>A p.Arg1191Gln missense_variant 57/71 ENST00000373672.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL16A1ENST00000373672.8 linkuse as main transcriptc.3572G>A p.Arg1191Gln missense_variant 57/715 NM_001856.4 P1Q07092-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
1
AN:
151530
Hom.:
0
Cov.:
31
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000327
AC:
5
AN:
152852
Hom.:
0
AF XY:
0.0000368
AC XY:
3
AN XY:
81582
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000161
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000172
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000122
AC:
17
AN:
1398508
Hom.:
0
Cov.:
36
AF XY:
0.0000145
AC XY:
10
AN XY:
689972
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000138
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000126
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000926
Gnomad4 OTH exome
AF:
0.0000173
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000659
AC:
1
AN:
151642
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74088
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000936
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000200
AC:
2

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 GeneticsDec 17, 2021The c.3572G>A (p.R1191Q) alteration is located in exon 57 (coding exon 56) of the COL16A1 gene. This alteration results from a G to A substitution at nucleotide position 3572, causing the arginine (R) at amino acid position 1191 to be replaced by a glutamine (Q). 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
0.082
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0071
T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.65
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.062
D
MetaRNN
Benign
0.050
T
MetaSVM
Benign
-0.38
T
MutationAssessor
Benign
0.64
N
MutationTaster
Benign
0.61
N;N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.45
N
REVEL
Benign
0.22
Sift
Benign
0.61
T
Sift4G
Benign
0.93
T
Polyphen
0.019
B
Vest4
0.19
MutPred
0.26
Loss of methylation at R1191 (P = 0.0521);
MVP
0.72
MPC
0.18
ClinPred
0.12
T
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.10
gMVP
0.26

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: rs751693965; hg19: chr1-32128243; API