Genetic Variant LGI1:p.Ile359Leu (chr10-93797204-A-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005097.4(LGI1):c.1075A>C(p.Ile359Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I359V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LGI1
NM_005097.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.84

Publications

2 publications found

Variant links:

Genes affected

LGI1 (HGNC:6572): (leucine rich glioma inactivated 1) This gene encodes a member of the secreted leucine-rich repeat (LRR) superfamily and shares homology with members of the SLIT protein family. The encoded protein may regulate the activity of voltage-gated potassium channels and may be involved in neuronal growth regulation and cell survival. This gene is rearranged as a result of translocations in glioblastoma cell lines, and it is frequently down-regulated or rearranged in malignant gliomas. Mutations in this gene result in autosomal dominant lateral temporal epilepsy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

LGI1 Gene-Disease associations (from GenCC):

autosomal dominant epilepsy with auditory features
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
epilepsy, familial temporal lobe, 1
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

LGI1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17857939).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005097.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
LGI1	NM_005097.4	MANE Select	c.1075A>C	p.Ile359Leu	missense	Exon 8 of 8	NP_005088.1
LGI1	NM_001308276.2		c.931A>C	p.Ile311Leu	missense	Exon 6 of 6	NP_001295205.1
LGI1	NR_131777.2		n.1212A>C		non_coding_transcript_exon	Exon 6 of 6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
LGI1	ENST00000371418.9	TSL:1 MANE Select	c.1075A>C	p.Ile359Leu	missense	Exon 8 of 8	ENSP00000360472.4
LGI1	ENST00000626307.1	TSL:1	n.4990A>C		non_coding_transcript_exon	Exon 3 of 3
LGI1	ENST00000627420.2	TSL:1	n.*784A>C		non_coding_transcript_exon	Exon 6 of 6	ENSP00000487116.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251014

AF XY:

0.00000737

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112002

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.048

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.59

DEOGEN2

Benign

0.33

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.16

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.78

M_CAP

Benign

0.015

MetaRNN

Benign

0.18

MetaSVM

Benign

-0.76

MutationAssessor

Benign

0.27

PhyloP100

3.8

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-0.55

REVEL

Benign

0.22

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.17

MutPred

0.67

Loss of catalytic residue at I359 (P = 0.0196)

MVP

0.48

MPC

0.71

ClinPred

0.071

GERP RS

4.0

Varity_R

0.22

gMVP

0.40

Mutation Taster

=72/28

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over