18-63978310-T-C
Variant names:
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_SupportingPM2PP5_Moderate
The NM_002640.4(SERPINB8):c.2T>C(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.0000675 in 1,614,086 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 Pathogenic (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000073 ( 0 hom. )
Consequence
SERPINB8
NM_002640.4 start_lost
NM_002640.4 start_lost
Scores
9
5
2
Clinical Significance
Conservation
PhyloP100: 7.05
Genes affected
SERPINB8 (HGNC:8952): (serpin family B member 8) The protein encoded by this gene is a member of the ov-serpin family of serine protease inhibitors. The encoded protein is produced by platelets and can bind to and inhibit the function of furin, a serine protease involved in platelet functions. In addition, this protein has been found to enhance the mechanical stability of cell-cell adhesion in the skin, and defects in this gene have been associated with an autosomal-recessive form of exfoliative ichthyosis. [provided by RefSeq, Jan 2017]
HMSD (HGNC:23037): (histocompatibility minor serpin domain containing) This gene encodes a serpin-domain containing protein that may function as a serine protease inhibitor. This gene is primarily expressed in cells of myeloid lineage. A polymorphism in this gene may result in the expression a splice variant that encodes a minor histocompatibility antigen. [provided by RefSeq, Oct 2010]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 5 ACMG points.
PVS1
Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 33 codons. Genomic position: 63978405. Lost 0.086 part of the original CDS.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 18-63978310-T-C is Pathogenic according to our data. Variant chr18-63978310-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 254199.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SERPINB8 | NM_002640.4 | c.2T>C | p.Met1? | start_lost | Exon 2 of 7 | ENST00000397985.7 | NP_002631.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152210Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000279 AC: 7AN: 251188Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135780
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GnomAD4 exome AF: 0.0000732 AC: 107AN: 1461876Hom.: 0 Cov.: 31 AF XY: 0.0000770 AC XY: 56AN XY: 727236
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152210Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74358
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Peeling skin syndrome 5 Pathogenic:2
Oct 04, 2024
Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: research
PVS1,PS3,PM2 -
Sep 13, 2016
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only
- -
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;T;.;.;T;T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;D;D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D;D
MetaSVM
Uncertain
D
PROVEAN
Pathogenic
D;D;.;D;D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D;.;D;D;D
Sift4G
Pathogenic
D;D;.;D;D;D
Polyphen
D;D;.;.;.;.
Vest4
MVP
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