NM_002728.6:c.323G>T

Variant names:

• chr11-57389053-C-A
• rs146040085
• NM_002728.6:c.323G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002728.6(PRG2):​c.323G>T​(p.Arg108Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000279 in 1,614,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R108C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: PRG2 NM_002728.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.128
• Publications: 2 publications found

Genes affected

PRG2 (HGNC:9362): (proteoglycan 2, pro eosinophil major basic protein) The protein encoded by this gene is the predominant constituent of the crystalline core of the eosinophil granule. High levels of the proform of this protein are also present in placenta and pregnancy serum, where it exists as a complex with several other proteins including pregnancy-associated plasma protein A (PAPPA), angiotensinogen (AGT), and C3dg. This protein may be involved in antiparasitic defense mechanisms as a cytotoxin and helminthotoxin, and in immune hypersensitivity reactions. The encoded protein contains a peptide that displays potent antimicrobial activity against Gram-positive bacteria, Gram-negative bacteria, and fungi. It is directly implicated in epithelial cell damage, exfoliation, and bronchospasm in allergic diseases. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2014]

ENSG00000254979 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19853279).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002728.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRG2	NM_002728.6	MANE Select	c.323G>T	p.Arg108Leu	missense	Exon 3 of 6	NP_002719.3
	PRG2	NM_001302926.2		c.323G>T	p.Arg108Leu	missense	Exon 3 of 6	NP_001289855.1	P13727-1
	PRG2	NM_001302927.2		c.323G>T	p.Arg108Leu	missense	Exon 3 of 6	NP_001289856.1	P13727-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRG2	ENST00000311862.10	TSL:1 MANE Select	c.323G>T	p.Arg108Leu	missense	Exon 3 of 6	ENSP00000312134.5	P13727-1
	ENSG00000254979	ENST00000529411.1	TSL:4	c.638G>T	p.Arg213Leu	missense	Exon 4 of 4	ENSP00000431536.1	H0YCG3
	PRG2	ENST00000525955.1	TSL:2	c.323G>T	p.Arg108Leu	missense	Exon 3 of 6	ENSP00000433016.1	P13727-1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152202 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: 0.0000441

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000279 AC: 7 AN: 251004 AF XY: 0.0000295

Gnomad AFR exome AF: 0.00

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: 0.0000617

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000287 AC: 42 AN: 1461850 Hom.: 0 Cov.: 33 AF XY: 0.0000261 AC XY: 19 AN XY: 727230

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53392

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

European-Non Finnish (NFE) AF: 0.0000369 AC: 41 AN: 1112000

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152202 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74366

African (AFR) AF: 0.00 AC: 0 AN: 41426

American (AMR) AF: 0.00 AC: 0 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000307 Hom.: 0

Bravo AF: 0.0000227

ExAC AF: 0.0000412 AC: 5

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D
Eigen	Benign	-0.76
Eigen_PC	Benign	-0.94
FATHMM_MKL	Benign	0.048	N
LIST_S2	Benign	0.63	T
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		0.13
PROVEAN	Pathogenic	-5.2	D
REVEL	Benign	0.13
Sift	Benign	0.081	T
Sift4G	Benign	0.11	T
Polyphen		0.98	D
Vest4		0.21
MVP		0.53
MPC		0.13
ClinPred		0.35	T
GERP RS		-0.99
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.62
gMVP		0.59
Mutation Taster		=97/3	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

Other links and lift over

dbSNP: rs146040085; hg19: chr11-57156526;