rs372563994

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002661.5(PLCG2):​c.784C>G​(p.Leu262Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000275 in 1,600,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. L262L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

PLCG2
NM_002661.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.07

Publications

0 publications found
Variant links:
Genes affected
PLCG2 (HGNC:9066): (phospholipase C gamma 2) The protein encoded by this gene is a transmembrane signaling enzyme that catalyzes the conversion of 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate to 1D-myo-inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG) using calcium as a cofactor. IP3 and DAG are second messenger molecules important for transmitting signals from growth factor receptors and immune system receptors across the cell membrane. Mutations in this gene have been found in autoinflammation, antibody deficiency, and immune dysregulation syndrome and familial cold autoinflammatory syndrome 3. [provided by RefSeq, Mar 2014]
PLCG2 Gene-Disease associations (from GenCC):
  • autoinflammation-PLCG2-associated antibody deficiency-immune dysregulation
    Inheritance: AD Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P
  • familial cold autoinflammatory syndrome 3
    Inheritance: AD Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.099505186).
BS2
High AC in GnomAdExome4 at 42 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLCG2NM_002661.5 linkc.784C>G p.Leu262Val missense_variant Exon 10 of 33 ENST00000564138.6 NP_002652.2 P16885
PLCG2NM_001425749.1 linkc.784C>G p.Leu262Val missense_variant Exon 11 of 34 NP_001412678.1
PLCG2NM_001425750.1 linkc.784C>G p.Leu262Val missense_variant Exon 10 of 33 NP_001412679.1
PLCG2NM_001425751.1 linkc.784C>G p.Leu262Val missense_variant Exon 11 of 34 NP_001412680.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLCG2ENST00000564138.6 linkc.784C>G p.Leu262Val missense_variant Exon 10 of 33 1 NM_002661.5 ENSP00000482457.1 P16885

Frequencies

GnomAD3 genomes
AF:
0.0000133
AC:
2
AN:
150470
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000245
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000374
AC:
9
AN:
240688
AF XY:
0.0000461
show subpopulations
Gnomad AFR exome
AF:
0.0000683
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:
0.0000733
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000290
AC:
42
AN:
1449802
Hom.:
0
Cov.:
28
AF XY:
0.0000347
AC XY:
25
AN XY:
720974
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33328
American (AMR)
AF:
0.00
AC:
0
AN:
44068
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25828
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39654
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84640
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53110
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000372
AC:
41
AN:
1103446
Other (OTH)
AF:
0.00
AC:
0
AN:
59976
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000133
AC:
2
AN:
150470
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
73274
show subpopulations
African (AFR)
AF:
0.0000245
AC:
1
AN:
40862
American (AMR)
AF:
0.00
AC:
0
AN:
14920
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5108
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4560
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10394
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67880
Other (OTH)
AF:
0.00
AC:
0
AN:
2056
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000142
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.0000662
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Jun 26, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.784C>G (p.L262V) alteration is located in exon 10 (coding exon 9) of the PLCG2 gene. This alteration results from a C to G substitution at nucleotide position 784, causing the leucine (L) at amino acid position 262 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Apr 01, 2021
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial cold autoinflammatory syndrome 3;C3553961:Autoinflammation-PLCG2-associated antibody deficiency-immune dysregulation Uncertain:1
May 17, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial cold autoinflammatory syndrome 3 Uncertain:1
Oct 30, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 262 of the PLCG2 protein (p.Leu262Val). This variant is present in population databases (rs372563994, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with PLCG2-related conditions. ClinVar contains an entry for this variant (Variation ID: 540106). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
18
DANN
Benign
0.94
DEOGEN2
Benign
0.30
T;.
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.20
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.73
T;T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.10
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.3
L;.
PhyloP100
1.1
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.21
.;N
REVEL
Benign
0.061
Sift
Benign
0.32
.;T
Sift4G
Benign
0.35
T;T
Polyphen
0.23
B;.
Vest4
0.18
MVP
0.37
MPC
0.12
ClinPred
0.057
T
GERP RS
2.7
Varity_R
0.061
gMVP
0.49
Mutation Taster
=87/13
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs372563994; hg19: chr16-81922795; API