10-22541993-C-A

Variant names:

• chr10-22541993-C-A
• rs61749168
• NM_005028.5:c.847G>T

Variant summary

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

The NM_005028.5(PIP4K2A):​c.847G>T​(p.Val283Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PIP4K2A NM_005028.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.57
• Publications: 1 publications found

Genes affected

PIP4K2A (HGNC:8997): (phosphatidylinositol-5-phosphate 4-kinase type 2 alpha) Phosphatidylinositol-5,4-bisphosphate, the precursor to second messengers of the phosphoinositide signal transduction pathways, is thought to be involved in the regulation of secretion, cell proliferation, differentiation, and motility. The protein encoded by this gene is one of a family of enzymes capable of catalyzing the phosphorylation of phosphatidylinositol-5-phosphate on the fourth hydroxyl of the myo-inositol ring to form phosphatidylinositol-5,4-bisphosphate. The amino acid sequence of this enzyme does not show homology to other kinases, but the recombinant protein does exhibit kinase activity. This gene is a member of the phosphatidylinositol-5-phosphate 4-kinase family. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005028.5. 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
	PIP4K2A	NM_005028.5	MANE Select	c.847G>T	p.Val283Leu	missense	Exon 8 of 10	NP_005019.2
	PIP4K2A	NM_001330062.2		c.670G>T	p.Val224Leu	missense	Exon 8 of 10	NP_001316991.1	P48426-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PIP4K2A	ENST00000376573.9	TSL:1 MANE Select	c.847G>T	p.Val283Leu	missense	Exon 8 of 10	ENSP00000365757.4	P48426-1
	PIP4K2A	ENST00000899822.1		c.694G>T	p.Val232Leu	missense	Exon 7 of 9	ENSP00000569881.1
	PIP4K2A	ENST00000545335.5	TSL:2	c.670G>T	p.Val224Leu	missense	Exon 8 of 10	ENSP00000442098.1	P48426-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Uncertain	0.046	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.053	T
Eigen	Benign	0.18
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.024	T
MetaRNN	Uncertain	0.60	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.51	N
PhyloP100		7.6
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.20
Sift	Benign	0.063	T
Sift4G	Benign	0.42	T
Polyphen		0.45	B
Vest4		0.79
MutPred		0.58		Gain of catalytic residue at V283 (P = 0.083)
MVP		0.42
MPC		0.58
ClinPred		0.67	D
GERP RS		6.1
Varity_R		0.42
gMVP		0.49
Mutation Taster		=52/48	polymorphism

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: rs61749168; hg19: chr10-22830922;