8-22148610-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_139278.4(LGI3):​c.1197C>T​(p.Pro399Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,613,902 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

LGI3
NM_139278.4 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -5.80
Variant links:
Genes affected
LGI3 (HGNC:18711): (leucine rich repeat LGI family member 3) Predicted to enable catalytic activity. Predicted to be involved in regulation of exocytosis. Predicted to be located in extracellular region. Predicted to be active in synaptic vesicle. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant 8-22148610-G-A is Benign according to our data. Variant chr8-22148610-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3034357.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00025 (38/152292) while in subpopulation EAS AF= 0.0058 (30/5174). AF 95% confidence interval is 0.00417. There are 0 homozygotes in gnomad4. There are 24 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LGI3NM_139278.4 linkuse as main transcriptc.1197C>T p.Pro399Pro synonymous_variant 8/8 ENST00000306317.7 NP_644807.1 Q8N145-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LGI3ENST00000306317.7 linkuse as main transcriptc.1197C>T p.Pro399Pro synonymous_variant 8/81 NM_139278.4 ENSP00000302297.2 Q8N145-1
LGI3ENST00000424267.6 linkuse as main transcriptc.1125C>T p.Pro375Pro synonymous_variant 7/71 ENSP00000399121.2 Q8N145-2
LGI3ENST00000520124.5 linkuse as main transcriptn.2640C>T non_coding_transcript_exon_variant 6/61

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
152174
Hom.:
0
Cov.:
32
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:
0.00578
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000414
AC:
104
AN:
250934
Hom.:
0
AF XY:
0.000332
AC XY:
45
AN XY:
135650
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000102
AC:
149
AN:
1461610
Hom.:
0
Cov.:
32
AF XY:
0.0000894
AC XY:
65
AN XY:
727098
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00272
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.000250
AC:
38
AN:
152292
Hom.:
0
Cov.:
32
AF XY:
0.000322
AC XY:
24
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00580
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.0000679
Hom.:
0
Bravo
AF:
0.000253
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

LGI3-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 13, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.045
DANN
Benign
0.55

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: rs201271501; hg19: chr8-22006123; COSMIC: COSV60443660; COSMIC: COSV60443660; API