chr10-93790137-A-T

Variant names:

• chr10-93790137-A-T
• rs1554906737
• NM_005097.4:c.470A>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_005097.4(LGI1):​c.470A>T​(p.Asp157Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: LGI1 NM_005097.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.45
• Publications: 0 publications found

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)

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.773

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LGI1	NM_005097.4	c.470A>T	p.Asp157Val	missense_variant	Exon 5 of 8	ENST00000371418.9	NP_005088.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LGI1	ENST00000371418.9	c.470A>T	p.Asp157Val	missense_variant	Exon 5 of 8	1	NM_005097.4	ENSP00000360472.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Seizure;C0494475:Bilateral tonic-clonic seizure Uncertain:1

Jan 01, 2017

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.56
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.48	T;.;.;.;T;.
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D;D;.;D;D;D
M_CAP	Benign	0.050	D
MetaRNN	Pathogenic	0.77	D;D;D;D;D;D
MetaSVM	Benign	-0.46	T
MutationAssessor	Uncertain	2.2	M;.;.;.;.;M
PhyloP100		7.5
PrimateAI	Uncertain	0.79	T
PROVEAN	Pathogenic	-4.7	D;.;.;.;.;D
REVEL	Uncertain	0.59
Sift	Uncertain	0.018	D;.;.;.;.;D
Sift4G	Uncertain	0.057	T;T;D;T;.;D
Polyphen		0.78	P;.;.;D;.;P
Vest4		0.88
MutPred		0.52		Gain of methylation at K156 (P = 0.0334);.;Gain of methylation at K156 (P = 0.0334);.;Gain of methylation at K156 (P = 0.0334);Gain of methylation at K156 (P = 0.0334);
MVP		0.82
MPC		1.7
ClinPred		0.99	D
GERP RS		5.1
Varity_R		0.84
gMVP		0.90
Mutation Taster		=29/71	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.11		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1554906737; hg19: chr10-95549894;