chr5-138951170-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The ENST00000394817.7(SIL1):​c.1029+1G>A variant causes a splice donor change. The variant allele was found at a frequency of 0.00000497 in 1,610,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SIL1
ENST00000394817.7 splice_donor

Scores

4
2
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.38
Variant links:
Genes affected
SIL1 (HGNC:24624): (SIL1 nucleotide exchange factor) This gene encodes a resident endoplasmic reticulum (ER), N-linked glycoprotein with an N-terminal ER targeting sequence, 2 putative N-glycosylation sites, and a C-terminal ER retention signal. This protein functions as a nucleotide exchange factor for another unfolded protein response protein. Mutations in this gene have been associated with Marinesco-Sjogren syndrome. Alternate transcriptional splice variants have been characterized. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.11832612 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 5-138951170-C-T is Pathogenic according to our data. Variant chr5-138951170-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 2626.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SIL1NM_022464.5 linkuse as main transcriptc.1029+1G>A splice_donor_variant ENST00000394817.7 NP_071909.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SIL1ENST00000394817.7 linkuse as main transcriptc.1029+1G>A splice_donor_variant 1 NM_022464.5 ENSP00000378294 P1
SIL1ENST00000265195.9 linkuse as main transcriptc.1029+1G>A splice_donor_variant 5 ENSP00000265195 P1
SIL1ENST00000509534.5 linkuse as main transcriptc.1050+1G>A splice_donor_variant 5 ENSP00000426858
SIL1ENST00000515008.1 linkuse as main transcriptn.364+1G>A splice_donor_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152262
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000822
AC:
2
AN:
243244
Hom.:
0
AF XY:
0.0000152
AC XY:
2
AN XY:
131746
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000339
Gnomad FIN exome
AF:
0.0000491
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1458674
Hom.:
0
Cov.:
32
AF XY:
0.00000552
AC XY:
4
AN XY:
725210
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.0000565
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152262
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Marinesco-Sjögren syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMDec 01, 2005- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.55
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
28
DANN
Uncertain
0.99
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Uncertain
0.95
D
MutationTaster
Benign
1.0
D;D;D
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.92
SpliceAI score (max)
0.98
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.98
Position offset: 1

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: rs777752978; hg19: chr5-138286859; API