chr16-81908423-C-T

Variant names:

• chr16-81908423-C-T
• rs72824905
• NM_002661.5:c.1565C>T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_002661.5(PLCG2):​c.1565C>T​(p.Pro522Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,476 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P522R) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: PLCG2 NM_002661.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.56
• Publications: 111 publications found

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

ACMG classification

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

• BP4: Computational evidence support a benign effect (MetaRNN=0.14976037).
• BS2: High AC in GnomAdExome4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002661.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLCG2	NM_002661.5	MANE Select	c.1565C>T	p.Pro522Leu	missense	Exon 17 of 33	NP_002652.2
	PLCG2	NM_001425749.1		c.1565C>T	p.Pro522Leu	missense	Exon 18 of 34	NP_001412678.1
	PLCG2	NM_001425750.1		c.1565C>T	p.Pro522Leu	missense	Exon 17 of 33	NP_001412679.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLCG2	ENST00000564138.6	TSL:1 MANE Select	c.1565C>T	p.Pro522Leu	missense	Exon 17 of 33	ENSP00000482457.1
	PLCG2	ENST00000567980.5	TSL:1	n.1809C>T		non_coding_transcript_exon	Exon 16 of 20
	PLCG2	ENST00000565054.7	TSL:5	c.1565C>T	p.Pro522Leu	missense	Exon 18 of 34	ENSP00000520638.1

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152118 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000294

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461358 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 726966

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44678

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26100

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86162

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00000540 AC: 6 AN: 1111716

Other (OTH) AF: 0.0000166 AC: 1 AN: 60372

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152118 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74292

African (AFR) AF: 0.00 AC: 0 AN: 41410

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68014

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 10

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Familial cold autoinflammatory syndrome 3 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.065
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Benign	17
DANN	Benign	0.94
DEOGEN2	Uncertain	0.67	D
Eigen	Benign	-0.36
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.32	N
LIST_S2	Benign	0.74	T
M_CAP	Benign	0.024	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.75	N
PhyloP100		2.6
PrimateAI	Benign	0.34	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.11
Sift	Benign	0.20	T
Sift4G	Benign	0.23	T
Polyphen		0.0050	B
Vest4		0.11
MutPred		0.46		Loss of disorder (P = 0.0172)
MVP		0.56
MPC		0.29
ClinPred		0.14	T
GERP RS		4.8
Varity_R		0.051
gMVP		0.69
Mutation Taster		=95/5	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs72824905; hg19: chr16-81942028; COSMIC: COSV63873320;