Variant chr5-69504256-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001205254.2(OCLN):c.12G>C(p.Arg4Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,280 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

OCLN
NM_001205254.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.862

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]

OCLN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.27157944).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OCLN	NM_001205254.2 linkuse as main transcript	c.12G>C	p.Arg4Ser	missense_variant	2/9	ENST00000396442.7	NP_001192183.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OCLN	ENST00000396442.7 linkuse as main transcript	c.12G>C	p.Arg4Ser	missense_variant	2/9	1	NM_001205254.2	ENSP00000379719	P1	Q16625-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1457280

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725342

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 15, 2022

The c.12G>C (p.R4S) alteration is located in exon 2 (coding exon 1) of the OCLN gene. This alteration results from a G to C substitution at nucleotide position 12, causing the arginine (R) at amino acid position 4 to be replaced by a serine (S). 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

Pathogenic

0.70

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

T;T

Eigen

Benign

0.11

Eigen_PC

Benign

0.14

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.79

.;T

M_CAP

Benign

0.041

MetaRNN

Benign

0.27

T;T

MetaSVM

Benign

-0.48

MutationAssessor

Benign

1.6

L;L

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.3

N;N

REVEL

Uncertain

0.45

Sift

Uncertain

0.0050

D;D

Sift4G

Uncertain

0.0090

D;D

Polyphen

0.98

D;D

Vest4

0.27

MutPred

0.25

Gain of phosphorylation at R4 (P = 0.0019);Gain of phosphorylation at R4 (P = 0.0019);

MVP

0.85

MPC

0.38

ClinPred

0.87

GERP RS

1.9

Varity_R

0.31

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over