rs369518478

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001205254.2(OCLN):​c.922G>A​(p.Val308Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V308L) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0041 ( 2 hom., cov: 11)
Exomes 𝑓: 0.0012 ( 31 hom. )
Failed GnomAD Quality Control

Consequence

OCLN
NM_001205254.2 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.87
Variant links:
Genes affected
OCLN (HGNC:8104): (occludin) This gene encodes an integral membrane protein that is required for cytokine-induced regulation of the tight junction paracellular permeability barrier. Mutations in this gene are thought to be a cause of band-like calcification with simplified gyration and polymicrogyria (BLC-PMG), an autosomal recessive neurologic disorder that is also known as pseudo-TORCH syndrome. Alternative splicing results in multiple transcript variants. A related pseudogene is present 1.5 Mb downstream on the q arm of chromosome 5. [provided by RefSeq, Apr 2011]

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=0.0031420588).
BP6
Variant 5-69534724-G-A is Benign according to our data. Variant chr5-69534724-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 377038.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.0012 (993/828788) while in subpopulation AFR AF= 0.0198 (347/17482). AF 95% confidence interval is 0.0181. There are 31 homozygotes in gnomad4_exome. There are 624 alleles in male gnomad4_exome subpopulation. Median coverage is 12. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 31 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OCLNNM_001205254.2 linkc.922G>A p.Val308Met missense_variant Exon 5 of 9 ENST00000396442.7 NP_001192183.1 Q16625-1A8K3T2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OCLNENST00000396442.7 linkc.922G>A p.Val308Met missense_variant Exon 5 of 9 1 NM_001205254.2 ENSP00000379719.2 Q16625-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
383
AN:
93456
Hom.:
2
Cov.:
11
FAILED QC
Gnomad AFR
AF:
0.0177
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.000761
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00350
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000183
Gnomad OTH
AF:
0.00781
GnomAD3 exomes
AF:
0.00220
AC:
500
AN:
226864
Hom.:
44
AF XY:
0.00231
AC XY:
285
AN XY:
123502
show subpopulations
Gnomad AFR exome
AF:
0.0216
Gnomad AMR exome
AF:
0.00111
Gnomad ASJ exome
AF:
0.000344
Gnomad EAS exome
AF:
0.0000559
Gnomad SAS exome
AF:
0.00630
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000128
Gnomad OTH exome
AF:
0.00198
GnomAD4 exome
AF:
0.00120
AC:
993
AN:
828788
Hom.:
31
Cov.:
12
AF XY:
0.00145
AC XY:
624
AN XY:
431272
show subpopulations
Gnomad4 AFR exome
AF:
0.0198
Gnomad4 AMR exome
AF:
0.00120
Gnomad4 ASJ exome
AF:
0.000241
Gnomad4 EAS exome
AF:
0.0000823
Gnomad4 SAS exome
AF:
0.00618
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000111
Gnomad4 OTH exome
AF:
0.00212
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00413
AC:
386
AN:
93528
Hom.:
2
Cov.:
11
AF XY:
0.00399
AC XY:
173
AN XY:
43362
show subpopulations
Gnomad4 AFR
AF:
0.0179
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.000761
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00305
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000183
Gnomad4 OTH
AF:
0.00767
Alfa
AF:
0.000540
Hom.:
7
ExAC
AF:
0.00308
AC:
365

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Jan 12, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Jan 20, 2016
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
16
DANN
Benign
0.85
DEOGEN2
Benign
0.069
T;T;.
Eigen
Benign
-0.77
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.090
N
LIST_S2
Benign
0.67
.;T;T
MetaRNN
Benign
0.0031
T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-0.32
N;N;.
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.18
N;N;N
REVEL
Benign
0.12
Sift
Benign
0.61
T;T;T
Sift4G
Benign
0.34
T;T;T
Polyphen
0.0030
B;B;.
Vest4
0.18
MVP
0.59
MPC
1.9
ClinPred
0.0024
T
GERP RS
1.8
Varity_R
0.035
gMVP
0.27

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: rs369518478; hg19: chr5-68830551; COSMIC: COSV62285774; COSMIC: COSV62285774; API