rs1186108805

Variant names:

• chr1-186893095-T-C
• rs1186108805
• NM_024420.3:c.200T>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_024420.3(PLA2G4A):​c.200T>C​(p.Ile67Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,611,384 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PLA2G4A NM_024420.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.37
• Publications: 0 publications found

Genes affected

PLA2G4A (HGNC:9035): (phospholipase A2 group IVA) This gene encodes a member of the cytosolic phospholipase A2 group IV family. The enzyme catalyzes the hydrolysis of membrane phospholipids to release arachidonic acid which is subsequently metabolized into eicosanoids. Eicosanoids, including prostaglandins and leukotrienes, are lipid-based cellular hormones that regulate hemodynamics, inflammatory responses, and other intracellular pathways. The hydrolysis reaction also produces lysophospholipids that are converted into platelet-activating factor. The enzyme is activated by increased intracellular Ca(2+) levels and phosphorylation, resulting in its translocation from the cytosol and nucleus to perinuclear membrane vesicles. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2015]

PLA2G4A Gene-Disease associations (from GenCC):

• cytosolic phospholipase-A2 alpha deficiency associated bleeding disorder

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• cryptogenic multifocal ulcerous stenosing enteritis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.36382386).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024420.3. 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
	PLA2G4A	NM_024420.3	MANE Select	c.200T>C	p.Ile67Thr	missense	Exon 4 of 18	NP_077734.2	P47712
	PLA2G4A	NM_001311193.2		c.200T>C	p.Ile67Thr	missense	Exon 4 of 16	NP_001298122.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLA2G4A	ENST00000367466.4	TSL:1 MANE Select	c.200T>C	p.Ile67Thr	missense	Exon 4 of 18	ENSP00000356436.3	P47712
	PLA2G4A	ENST00000851114.1		c.200T>C	p.Ile67Thr	missense	Exon 5 of 19	ENSP00000521173.1
	PLA2G4A	ENST00000851115.1		c.200T>C	p.Ile67Thr	missense	Exon 4 of 18	ENSP00000521174.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152216 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 AF: 0.00000137 AC: 2 AN: 1459168 Hom.: 0 Cov.: 29 AF XY: 0.00000275 AC XY: 2 AN XY: 726118

African (AFR) AF: 0.00 AC: 0 AN: 33402

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26118

East Asian (EAS) AF: 0.00 AC: 0 AN: 39648

South Asian (SAS) AF: 0.00 AC: 0 AN: 86202

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

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

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1109618

Other (OTH) AF: 0.00 AC: 0 AN: 60290

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152216 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74370

African (AFR) AF: 0.00 AC: 0 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15282

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

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

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: 0.0000147 AC: 1 AN: 68036

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

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.014	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.21	T
Eigen	Uncertain	0.28
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.36	T
MetaSVM	Benign	-0.61	T
MutationAssessor	Benign	0.74	N
PhyloP100		7.4
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	0.54	N
REVEL	Benign	0.28
Sift	Benign	0.63	T
Sift4G	Uncertain	0.036	D
Polyphen		0.46	P
Vest4		0.34
MutPred		0.68		Gain of disorder (P = 0.017)
MVP		0.93
MPC		0.71
ClinPred		0.86	D
GERP RS		5.7
Varity_R		0.28
gMVP		0.72
Mutation Taster		=49/51	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs1186108805; hg19: chr1-186862227;