Genetic Variant LLGL2:p.Arg13Trp (chr17-75543463-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001031803.2(LLGL2):c.37C>T(p.Arg13Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,459,616 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

LLGL2
NM_001031803.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.245

Publications

1 publications found

Variant links:

Genes affected

LLGL2 (HGNC:6629): (LLGL scribble cell polarity complex component 2) The lethal (2) giant larvae protein of Drosophila plays a role in asymmetric cell division, epithelial cell polarity, and cell migration. This human gene encodes a protein similar to lethal (2) giant larvae of Drosophila. In fly, the protein's ability to localize cell fate determinants is regulated by the atypical protein kinase C (aPKC). In human, this protein interacts with aPKC-containing complexes and is cortically localized in mitotic cells. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

LLGL2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LLGL2	NM_001031803.2 link	c.37C>T	p.Arg13Trp	missense_variant	Exon 2 of 26	ENST00000392550.8	NP_001026973.1	Q6P1M3-1A0PJJ0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LLGL2	ENST00000392550.8 link	c.37C>T	p.Arg13Trp	missense_variant	Exon 2 of 26	1	NM_001031803.2	ENSP00000376333.4		Q6P1M3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000802

AC:

AN:

249382

AF XY:

0.00000741

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1459616

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

726006

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33406

American (AMR)

AF:

0.00

AC:

AN:

44456

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26100

East Asian (EAS)

AF:

0.00

AC:

AN:

39566

South Asian (SAS)

AF:

0.0000116

AC:

AN:

85946

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53360

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000108

AC:

AN:

1110760

Other (OTH)

AF:

0.00

AC:

AN:

60266

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000312

Hom.:

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 15, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.37C>T (p.R13W) alteration is located in exon 2 (coding exon 1) of the LLGL2 gene. This alteration results from a C to T substitution at nucleotide position 37, causing the arginine (R) at amino acid position 13 to be replaced by a tryptophan (W). 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

Uncertain

0.52

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.16

CADD

Benign

(source)

DANN

Benign

0.79

DEOGEN2

Benign

0.22

T;.;.;D;.;T;.;T;T;T

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.054

LIST_S2

Pathogenic

0.97

D;D;.;D;D;D;D;D;D;D

M_CAP

Uncertain

0.26

MetaRNN

Uncertain

0.64

D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.69

MutationAssessor

Uncertain

2.6

.;M;M;M;M;.;.;.;.;.

PhyloP100

-0.24

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-4.7

.;D;D;D;.;.;.;.;.;.

REVEL

Uncertain

0.56

Sift

Pathogenic

0.0

.;D;D;D;.;.;.;.;.;.

Sift4G

Pathogenic

0.0010

D;D;D;D;D;D;D;D;D;D

Polyphen

1.0

.;D;D;D;D;.;.;.;.;.

Vest4

0.56, 0.66, 0.60, 0.57

MutPred

0.48

Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);Loss of disorder (P = 0);

MVP

0.92

MPC

0.84

ClinPred

0.98

GERP RS

-4.5

PromoterAI

-0.011

Neutral

(source)

Varity_R

0.83

gMVP

0.66

Mutation Taster

=84/16

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

17-75543463-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over