Variant chr6-63280340-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The ENST00000370657.9(LGSN):c.1211G>A(p.Arg404Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000239 in 1,614,158 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 2 hom. )

Consequence

LGSN
ENST00000370657.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.55

Variant links:

Genes affected

LGSN (HGNC:21016): (lengsin, lens protein with glutamine synthetase domain) This gene encodes a protein with similarity to the GS I members of the glutamine synthetase superfamily. The encoded protein is referred to as a pseudo-glutamine synthetase because it has no glutamine synthesis activity and may function as a chaperone protein. This protein is localized to the lens and may be associated with cataract disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2009]

LGSN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.046799988).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LGSN	NM_016571.3 linkuse as main transcript	c.1211G>A	p.Arg404Gln	missense_variant	4/4	ENST00000370657.9	NP_057655.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LGSN	ENST00000370657.9 linkuse as main transcript	c.1211G>A	p.Arg404Gln	missense_variant	4/4	1	NM_016571.3	ENSP00000359691	P1	Q5TDP6-1
LGSN	ENST00000370658.9 linkuse as main transcript	c.*163G>A		3_prime_UTR_variant	5/5	1		ENSP00000359692		Q5TDP6-2
LGSN	ENST00000622415.1 linkuse as main transcript	c.*936G>A		3_prime_UTR_variant	5/5	2		ENSP00000479173		Q5TDP6-3
LGSN	ENST00000485906.6 linkuse as main transcript	c.529+682G>A		intron_variant		3		ENSP00000431246

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000279

AC:

AN:

251218

Hom.:

AF XY:

0.000309

AC XY:

AN XY:

135852

show subpopulations

Gnomad AFR exome

AF:

0.0000620

Gnomad AMR exome

AF:

0.000405

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000915

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000238

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000248

AC:

363

AN:

1461876

Hom.:

Cov.:

AF XY:

0.000276

AC XY:

201

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000402

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00105

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000218

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000144

AC:

AN:

152282

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000132

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000239

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

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

Feb 16, 2023

The c.1211G>A (p.R404Q) alteration is located in exon 4 (coding exon 4) of the LGSN gene. This alteration results from a G to A substitution at nucleotide position 1211, causing the arginine (R) at amino acid position 404 to be replaced by a glutamine (Q). 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

0.064

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.14

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.35

FATHMM_MKL

Benign

0.63

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.036

MetaRNN

Benign

0.047

MetaSVM

Benign

-0.73

MutationAssessor

Benign

0.34

MutationTaster

Benign

1.0

D;N

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.46

REVEL

Benign

0.27

Sift

Benign

0.31

Sift4G

Benign

0.39

Polyphen

0.059

Vest4

0.077

MVP

0.63

MPC

0.013

ClinPred

0.043

GERP RS

2.8

Varity_R

0.055

gMVP

0.47

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