rs201654184

Positions:

chr16-81895894-A-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_002661.5(PLCG2):c.1160A>C(p.Gln387Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000556 in 1,614,118 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00059 ( 0 hom. )

Consequence

PLCG2
NM_002661.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:2

Conservation

PhyloP100: 3.65

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 links:

PLCG2 (HGNC:):

PLCG2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00025 (38/152260) while in subpopulation NFE AF= 0.0005 (34/68016). AF 95% confidence interval is 0.000368. There are 0 homozygotes in gnomad4. There are 15 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 38 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLCG2	NM_002661.5 linkuse as main transcript	c.1160A>C	p.Gln387Pro	missense_variant	13/33	ENST00000564138.6	NP_002652.2	P16885

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLCG2	ENST00000564138.6 linkuse as main transcript	c.1160A>C	p.Gln387Pro	missense_variant	13/33	1	NM_002661.5	ENSP00000482457.1		P16885

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000248

AC:

AN:

249574

Hom.:

AF XY:

0.000251

AC XY:

AN XY:

135402

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000325

Gnomad NFE exome

AF:

0.000459

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000588

AC:

859

AN:

1461858

Hom.:

Cov.:

AF XY:

0.000573

AC XY:

417

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000337

Gnomad4 NFE exome

AF:

0.000737

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000250

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000500

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000255

Hom.:

Bravo

AF:

0.000219

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000471

AC:

ExAC

AF:

0.000190

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

Familial cold autoinflammatory syndrome 3

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 01, 2023

This sequence change replaces glutamine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 387 of the PLCG2 protein (p.Gln387Pro). This variant is present in population databases (rs201654184, gnomAD 0.04%), and has an allele count higher than expected for a pathogenic variant. 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: 540101). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. 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

Pathogenic

0.79

BayesDel_addAF

Benign

-0.094

BayesDel_noAF

Uncertain

-0.050

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Pathogenic

0.89

D;.

Eigen

Benign

-0.10

Eigen_PC

Benign

0.0090

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.030

MetaRNN

Uncertain

0.65

D;D

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.2

M;.

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-2.4

.;N

REVEL

Uncertain

0.30

Sift

Uncertain

0.026

.;D

Sift4G

Benign

0.14

T;T

Polyphen

0.016

B;.

Vest4

0.78

MVP

0.89

MPC

0.34

ClinPred

0.15

GERP RS

5.0

Varity_R

0.73

gMVP

0.95

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