10-104057158-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000494.4(COL17A1):​c.1282G>A​(p.Gly428Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.963 in 1,613,840 control chromosomes in the GnomAD database, including 755,323 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.86 ( 58588 hom., cov: 32)
Exomes 𝑓: 0.97 ( 696735 hom. )

Consequence

COL17A1
NM_000494.4 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.699
Variant links:
Genes affected
COL17A1 (HGNC:2194): (collagen type XVII alpha 1 chain) This gene encodes the alpha chain of type XVII collagen. Unlike most collagens, collagen XVII is a transmembrane protein. Collagen XVII is a structural component of hemidesmosomes, multiprotein complexes at the dermal-epidermal basement membrane zone that mediate adhesion of keratinocytes to the underlying membrane. Mutations in this gene are associated with both generalized atrophic benign and junctional epidermolysis bullosa. Two homotrimeric forms of type XVII collagen exist. The full length form is the transmembrane protein. A soluble form, referred to as either ectodomain or LAD-1, is generated by proteolytic processing of the full length form. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=8.6531384E-7).
BP6
Variant 10-104057158-C-T is Benign according to our data. Variant chr10-104057158-C-T is described in ClinVar as [Benign]. Clinvar id is 256266.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-104057158-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.988 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL17A1NM_000494.4 linkuse as main transcriptc.1282G>A p.Gly428Ser missense_variant 17/56 ENST00000648076.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL17A1ENST00000648076.2 linkuse as main transcriptc.1282G>A p.Gly428Ser missense_variant 17/56 NM_000494.4 A2Q9UMD9-1
COL17A1ENST00000369733.8 linkuse as main transcriptc.1282G>A p.Gly428Ser missense_variant 16/515 P4Q9UMD9-2
COL17A1ENST00000650263.1 linkuse as main transcriptc.1234G>A p.Gly412Ser missense_variant 16/22

Frequencies

GnomAD3 genomes
AF:
0.857
AC:
130310
AN:
151994
Hom.:
58581
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.554
Gnomad AMI
AF:
0.998
Gnomad AMR
AF:
0.927
Gnomad ASJ
AF:
0.986
Gnomad EAS
AF:
0.884
Gnomad SAS
AF:
0.943
Gnomad FIN
AF:
0.944
Gnomad MID
AF:
0.937
Gnomad NFE
AF:
0.994
Gnomad OTH
AF:
0.900
GnomAD3 exomes
AF:
0.940
AC:
233587
AN:
248608
Hom.:
111191
AF XY:
0.948
AC XY:
127838
AN XY:
134796
show subpopulations
Gnomad AFR exome
AF:
0.551
Gnomad AMR exome
AF:
0.947
Gnomad ASJ exome
AF:
0.987
Gnomad EAS exome
AF:
0.888
Gnomad SAS exome
AF:
0.946
Gnomad FIN exome
AF:
0.944
Gnomad NFE exome
AF:
0.994
Gnomad OTH exome
AF:
0.956
GnomAD4 exome
AF:
0.974
AC:
1423027
AN:
1461728
Hom.:
696735
Cov.:
59
AF XY:
0.975
AC XY:
708647
AN XY:
727168
show subpopulations
Gnomad4 AFR exome
AF:
0.535
Gnomad4 AMR exome
AF:
0.945
Gnomad4 ASJ exome
AF:
0.985
Gnomad4 EAS exome
AF:
0.866
Gnomad4 SAS exome
AF:
0.950
Gnomad4 FIN exome
AF:
0.946
Gnomad4 NFE exome
AF:
0.996
Gnomad4 OTH exome
AF:
0.946
GnomAD4 genome
AF:
0.857
AC:
130352
AN:
152112
Hom.:
58588
Cov.:
32
AF XY:
0.859
AC XY:
63857
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.554
Gnomad4 AMR
AF:
0.927
Gnomad4 ASJ
AF:
0.986
Gnomad4 EAS
AF:
0.884
Gnomad4 SAS
AF:
0.944
Gnomad4 FIN
AF:
0.944
Gnomad4 NFE
AF:
0.994
Gnomad4 OTH
AF:
0.901
Alfa
AF:
0.969
Hom.:
78770
Bravo
AF:
0.839
TwinsUK
AF:
0.994
AC:
3687
ALSPAC
AF:
0.996
AC:
3838
ESP6500AA
AF:
0.567
AC:
2498
ESP6500EA
AF:
0.993
AC:
8539
ExAC
AF:
0.934
AC:
113433
EpiCase
AF:
0.994
EpiControl
AF:
0.993

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015This variant is associated with the following publications: (PMID: 24668667) -
Junctional epidermolysis bullosa, non-Herlitz type Benign:2
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 22, 2021- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Epithelial recurrent erosion dystrophy Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 22, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.61
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
8.1
DANN
Benign
0.72
DEOGEN2
Benign
0.12
.;T;T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.074
N
LIST_S2
Benign
0.41
T;.;T;T
MetaRNN
Benign
8.7e-7
T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.34
N;N;N;.
MutationTaster
Benign
1.0
P;P
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.030
N;N;.;.
REVEL
Benign
0.23
Sift
Benign
0.48
T;T;.;.
Sift4G
Benign
0.35
T;T;.;.
Polyphen
0.0010
B;B;B;.
Vest4
0.065
MPC
0.066
ClinPred
0.0089
T
GERP RS
1.7
Varity_R
0.019
gMVP
0.20

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: rs805698; hg19: chr10-105816916; COSMIC: COSV62226343; COSMIC: COSV62226343; API