chr6-63280226-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_016571.3(LGSN):ā€‹c.1325A>Gā€‹(p.Asp442Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00245 in 1,614,204 control chromosomes in the GnomAD database, including 81 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.014 ( 47 hom., cov: 32)
Exomes š‘“: 0.0013 ( 34 hom. )

Consequence

LGSN
NM_016571.3 missense

Scores

18

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.822
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00319916).
BP6
Variant 6-63280226-T-C is Benign according to our data. Variant chr6-63280226-T-C is described in ClinVar as [Benign]. Clinvar id is 783466.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0135 (2061/152314) while in subpopulation AFR AF= 0.0466 (1935/41562). AF 95% confidence interval is 0.0448. There are 47 homozygotes in gnomad4. There are 981 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 47 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LGSNNM_016571.3 linkuse as main transcriptc.1325A>G p.Asp442Gly missense_variant 4/4 ENST00000370657.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LGSNENST00000370657.9 linkuse as main transcriptc.1325A>G p.Asp442Gly missense_variant 4/41 NM_016571.3 P1Q5TDP6-1
LGSNENST00000370658.9 linkuse as main transcriptc.*277A>G 3_prime_UTR_variant 5/51 Q5TDP6-2
LGSNENST00000622415.1 linkuse as main transcriptc.*1050A>G 3_prime_UTR_variant 5/52 Q5TDP6-3
LGSNENST00000485906.6 linkuse as main transcriptc.529+796A>G intron_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0135
AC:
2055
AN:
152196
Hom.:
47
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0465
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00654
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:
0.000132
Gnomad OTH
AF:
0.00765
GnomAD3 exomes
AF:
0.00346
AC:
870
AN:
251422
Hom.:
13
AF XY:
0.00254
AC XY:
345
AN XY:
135878
show subpopulations
Gnomad AFR exome
AF:
0.0458
Gnomad AMR exome
AF:
0.00286
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000879
Gnomad OTH exome
AF:
0.00196
GnomAD4 exome
AF:
0.00129
AC:
1888
AN:
1461890
Hom.:
34
Cov.:
33
AF XY:
0.00107
AC XY:
778
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0451
Gnomad4 AMR exome
AF:
0.00282
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000477
Gnomad4 OTH exome
AF:
0.00300
GnomAD4 genome
AF:
0.0135
AC:
2061
AN:
152314
Hom.:
47
Cov.:
32
AF XY:
0.0132
AC XY:
981
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.0466
Gnomad4 AMR
AF:
0.00654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00757
Alfa
AF:
0.00606
Hom.:
6
Bravo
AF:
0.0155
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.0429
AC:
189
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00404
AC:
490
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000237

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 13, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
2.0
DANN
Benign
0.61
DEOGEN2
Benign
0.031
T
Eigen
Benign
-0.87
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.54
T
MetaRNN
Benign
0.0032
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
0.72
N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.77
N
REVEL
Benign
0.14
Sift
Benign
0.34
T
Sift4G
Benign
0.40
T
Polyphen
0.0
B
Vest4
0.12
MVP
0.51
MPC
0.013
ClinPred
0.0015
T
GERP RS
2.2
Varity_R
0.068
gMVP
0.34

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: rs35039535; hg19: chr6-63990131; API