rs753539229

Variant names:

• chr16-81910661-C-G
• rs753539229
• NM_002661.5:c.1875C>G

Your query was ambiguous. Multiple possible variants found:

• chr16-81910661-C-G
• chr16-81910661-C-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_002661.5(PLCG2):​c.1875C>G​(p.Ala625Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,234 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. A625A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PLCG2 NM_002661.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.781
• Publications: 0 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 -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant 16-81910661-C-G is Benign according to our data. Variant chr16-81910661-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 540121.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-0.781 with no splicing effect.

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.1875C>G	p.Ala625Ala	synonymous	Exon 18 of 33	NP_002652.2
	PLCG2	NM_001425749.1		c.1875C>G	p.Ala625Ala	synonymous	Exon 19 of 34	NP_001412678.1
	PLCG2	NM_001425750.1		c.1875C>G	p.Ala625Ala	synonymous	Exon 18 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.1875C>G	p.Ala625Ala	synonymous	Exon 18 of 33	ENSP00000482457.1
	PLCG2	ENST00000567980.5	TSL:1	n.2119C>G		non_coding_transcript_exon	Exon 17 of 20
	PLCG2	ENST00000565054.7	TSL:5	c.1875C>G	p.Ala625Ala	synonymous	Exon 19 of 34	ENSP00000520638.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461234 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726976

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.0000224 AC: 1 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52824

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111970

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

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
BayesDel_noAF	Benign	-0.39
CADD	Benign	5.0
DANN	Benign	0.67
PhyloP100		-0.78

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

Other links and lift over

dbSNP: rs753539229; hg19: chr16-81944266;