Variant chr12-6774730-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002286.6(LAG3):c.647C>G(p.Ser216Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,180 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

LAG3
NM_002286.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.68

Variant links:

Genes affected

LAG3 (HGNC:6476): (lymphocyte activating 3) Lymphocyte-activation protein 3 belongs to Ig superfamily and contains 4 extracellular Ig-like domains. The LAG3 gene contains 8 exons. The sequence data, exon/intron organization, and chromosomal localization all indicate a close relationship of LAG3 to CD4. [provided by RefSeq, Jul 2008]

LAG3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
LAG3	NM_002286.6 linkuse as main transcript	c.647C>G	p.Ser216Cys	missense_variant	4/8	ENST00000203629.3	NP_002277.4
LAG3	NM_001414176.1 linkuse as main transcript	c.647C>G	p.Ser216Cys	missense_variant	4/8		NP_001401105.1
LAG3	NM_001414177.1 linkuse as main transcript	c.647C>G	p.Ser216Cys	missense_variant	4/7		NP_001401106.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LAG3	ENST00000203629.3 linkuse as main transcript	c.647C>G	p.Ser216Cys	missense_variant	4/8	1	NM_002286.6	ENSP00000203629	P2	P18627-1
LAG3	ENST00000441671.6 linkuse as main transcript	c.647C>G	p.Ser216Cys	missense_variant	4/5	1		ENSP00000413825	A2	P18627-2
LAG3	ENST00000538079.1 linkuse as main transcript	n.1269C>G		non_coding_transcript_exon_variant	3/6	2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

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

May 18, 2023

The c.647C>G (p.S216C) alteration is located in exon 4 (coding exon 4) of the LAG3 gene. This alteration results from a C to G substitution at nucleotide position 647, causing the serine (S) at amino acid position 216 to be replaced by a cysteine (C). 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

0.50

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.69

.;D

Eigen

Uncertain

0.27

Eigen_PC

Benign

0.13

FATHMM_MKL

Benign

0.27

LIST_S2

Benign

0.74

T;T

M_CAP

Benign

0.012

MetaRNN

Uncertain

0.70

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

L;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.15

Sift

Uncertain

0.0080

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

.;D

Vest4

0.67

MutPred

0.38

Loss of disorder (P = 0.0094);Loss of disorder (P = 0.0094);

MVP

0.66

MPC

0.46

ClinPred

0.95

GERP RS

4.5

Varity_R

0.30

gMVP

0.51

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