Genetic Variant NM_012398.3:c.1999G>A (chr19-3633442-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_012398.3(PIP5K1C):c.1999G>A(p.Asp667Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000288 in 1,494,196 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

PIP5K1C
NM_012398.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.80

Variant links:

Genes affected

PIP5K1C (HGNC:8996): (phosphatidylinositol-4-phosphate 5-kinase type 1 gamma) This locus encodes a type I phosphatidylinositol 4-phosphate 5-kinase. The encoded protein catalyzes phosphorylation of phosphatidylinositol 4-phosphate, producing phosphatidylinositol 4,5-bisphosphate. This enzyme is found at synapses and has been found to play roles in endocytosis and cell migration. Mutations at this locus have been associated with lethal congenital contractural syndrome. Alternatively spliced transcript variants encoding different isoforms have been described.[provided by RefSeq, Sep 2010]

PIP5K1C links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.28520906).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PIP5K1C	NM_012398.3 link	c.1999G>A	p.Asp667Asn	missense_variant	Exon 17 of 18	ENST00000335312.8	NP_036530.1	O60331-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PIP5K1C	ENST00000335312.8 link	c.1999G>A	p.Asp667Asn	missense_variant	Exon 17 of 18	1	NM_012398.3	ENSP00000335333.3		O60331-1

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000125

AC:

AN:

159746

Hom.:

AF XY:

0.0000232

AC XY:

AN XY:

86088

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000132

Gnomad OTH exome

AF:

0.000277

GnomAD4 exome

AF:

0.0000276

AC:

AN:

1342046

Hom.:

Cov.:

AF XY:

0.0000351

AC XY:

AN XY:

656150

show subpopulations

Gnomad4 AFR exome

AF:

0.0000668

Gnomad4 AMR exome

AF:

0.0000650

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000267

Gnomad4 SAS exome

AF:

0.0000749

Gnomad4 FIN exome

AF:

0.0000647

Gnomad4 NFE exome

AF:

0.0000228

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74314

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ExAC

AF:

0.00000840

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Dec 12, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1999G>A (p.D667N) alteration is located in exon 17 (coding exon 17) of the PIP5K1C gene. This alteration results from a G to A substitution at nucleotide position 1999, causing the aspartic acid (D) at amino acid position 667 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

Eigen

Benign

0.023

Eigen_PC

Benign

0.080

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.71

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.29

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.84

REVEL

Benign

0.12

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.059

Polyphen

0.90

Vest4

0.52

MutPred

0.094

Loss of phosphorylation at T668 (P = 0.0578);

MVP

0.54

MPC

0.86

ClinPred

0.61

GERP RS

3.4

Varity_R

0.19

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over