3-116086552-C-T

Position:

chr3-116086552-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002338.5(LSAMP):c.160G>A(p.Val54Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000508 in 1,613,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

LSAMP
NM_002338.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.66

Variant links:

Genes affected

LSAMP (HGNC:6705): (limbic system associated membrane protein) This gene encodes a member of the immunoglobulin LAMP, OBCAM and neurotrimin (IgLON) family of proteins. The encoded preproprotein is proteolytically processed to generate a neuronal surface glycoprotein. This protein may act as a selective homophilic adhesion molecule during axon guidance and neuronal growth in the developing limbic system. The encoded protein may also function as a tumor suppressor and may play a role in neuropsychiatric disorders. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

LSAMP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07258749).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LSAMP	NM_002338.5 linkuse as main transcript	c.160G>A	p.Val54Ile	missense_variant	2/7	ENST00000490035.7	NP_002329.2	Q13449B7Z661
LSAMP	NM_001318915.2 linkuse as main transcript	c.160G>A	p.Val54Ile	missense_variant	2/9		NP_001305844.1	Q13449B7Z661
LSAMP	XM_017006383.3 linkuse as main transcript	c.160G>A	p.Val54Ile	missense_variant	2/8		XP_016861872.1
LSAMP	XM_011512840.4 linkuse as main transcript	c.160G>A	p.Val54Ile	missense_variant	2/8		XP_011511142.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LSAMP	ENST00000490035.7 linkuse as main transcript	c.160G>A	p.Val54Ile	missense_variant	2/7	1	NM_002338.5	ENSP00000419000.1	Q13449
LSAMP	ENST00000333617.8 linkuse as main transcript	c.112G>A	p.Val38Ile	missense_variant	2/9	2		ENSP00000328455.4	H3BLU2
LSAMP	ENST00000474851.1 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	4/5	5		ENSP00000418506.1	C9J5G3

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000104

AC:

AN:

251202

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000452

AC:

AN:

1461218

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

726978

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000335

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000378

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000105

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74484

show subpopulations

Gnomad4 AFR

AF:

0.000289

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000114

Hom.:

Bravo

AF:

0.0000869

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000115

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 20, 2024

The c.160G>A (p.V54I) alteration is located in exon 2 (coding exon 2) of the LSAMP gene. This alteration results from a G to A substitution at nucleotide position 160, causing the valine (V) at amino acid position 54 to be replaced by an isoleucine (I). 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

Benign

0.090

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.080

.;T;.;T

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.39

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.67

T;T;T;T

M_CAP

Benign

0.030

MetaRNN

Benign

0.073

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.32

.;N;.;.

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.080

.;N;N;N

REVEL

Benign

0.065

Sift

Benign

0.29

.;T;T;T

Sift4G

Benign

0.37

T;T;T;.

Polyphen

0.0020

.;B;.;.

Vest4

0.10

MVP

0.50

MPC

0.57

ClinPred

0.011

GERP RS

2.8

Varity_R

0.032

gMVP

0.54

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