15-41840589-C-G

Variant names:

• chr15-41840589-C-G
• rs569458916
• NM_001114633.2:c.148C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001114633.2(PLA2G4B):​c.148C>G​(p.Arg50Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. R50C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Failed GnomAD Quality Control
• Consequence: PLA2G4B NM_001114633.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.24
• Publications: 0 publications found

Genes affected

PLA2G4B (HGNC:9036): (phospholipase A2 group IVB) This gene encodes a member of the cytosolic phospholipase A2 protein family. Phospholipase A2 enzymes hydrolyze the sn-2 bond of phospholipids, releasing lysophospholipids and fatty acids. This enzyme may be associated with mitochondria and early endosomes. Most tissues also express read-through transcripts from the upstream gene into this gene, some of which may encode fusion proteins combining the N-terminus of the upstream gene including its JmjC domain with the almost complete coding region of this gene, including the C2 and cytoplasmic phospholipase A2 domains. [provided by RefSeq, Jul 2008]

JMJD7-PLA2G4B (HGNC:34449): (JMJD7-PLA2G4B readthrough) This locus represents naturally-occurring readthrough transcription between the neighboring jumonji domain containing 7 (JMJD7) and phospholipase A2, group IVB (cytosolic) (PLA2G4B) genes. Readthrough transcripts encode fusion proteins that share amino acid sequence with each individual gene product, including a partial JmjC domain and downstream C2 and phospholipase A2 domains. Alternatively spliced transcript variants have been observed. [provided by RefSeq, Oct 2013]

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.876

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001114633.2. 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
	PLA2G4B	NM_001114633.2	MANE Select	c.148C>G	p.Arg50Gly	missense	Exon 3 of 20	NP_001108105.1	P0C869-1
	JMJD7-PLA2G4B	NM_005090.4		c.841C>G	p.Arg281Gly	missense	Exon 8 of 25	NP_005081.1
	JMJD7-PLA2G4B	NM_001198588.2		c.841C>G	p.Arg281Gly	missense	Exon 8 of 24	NP_001185517.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLA2G4B	ENST00000458483.4	TSL:2 MANE Select	c.148C>G	p.Arg50Gly	missense	Exon 3 of 20	ENSP00000416610.1	P0C869-1
	JMJD7-PLA2G4B	ENST00000382448.8	TSL:2	c.841C>G	p.Arg281Gly	missense	Exon 8 of 25	ENSP00000371886.4
	JMJD7-PLA2G4B	ENST00000342159.6	TSL:2	c.841C>G	p.Arg281Gly	missense	Exon 8 of 24	ENSP00000342785.4

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152192 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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000657 AC: 1 AN: 152192 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74334

African (AFR) AF: 0.00 AC: 0 AN: 41450

American (AMR) AF: 0.00 AC: 0 AN: 15278

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68028

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

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Pathogenic	0.31	D
BayesDel_noAF	Pathogenic	0.21
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.25	T
Eigen	Pathogenic	0.73
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Uncertain	0.76	D
LIST_S2	Benign	0.75	T
M_CAP	Uncertain	0.089	D
MetaRNN	Pathogenic	0.88	D
MetaSVM	Uncertain	0.35	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		4.2
PrimateAI	Benign	0.37	T
PROVEAN	Pathogenic	-4.5	D
REVEL	Uncertain	0.64
Sift	Uncertain	0.0070	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.70
MutPred		0.70		Loss of MoRF binding (P = 0.0103)
MVP		0.81
MPC		0.18
ClinPred		0.99	D
GERP RS		5.0
Varity_R		0.82
gMVP		0.47

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: rs569458916; hg19: chr15-42132787;