5-103138467-A-C

Position:

chr5-103138467-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001276277.3(PPIP5K2):c.485A>C(p.Lys162Thr) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000628 in 1,592,402 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

PPIP5K2
NM_001276277.3 missense, splice_region

Scores

Splicing: ADA: 0.1822

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.81

Variant links:

Genes affected

PPIP5K2 (HGNC:29035): (diphosphoinositol pentakisphosphate kinase 2) This gene encodes a member of the histidine acid phosphatase family of proteins. Despite containing a histidine acid phosphatase domain, the encoded protein functions as an inositol pyrophosphate kinase, and is thought to lack phosphatase activity. This kinase activity is the mechanism by which the encoded protein synthesizes high-energy inositol pyrophosphates, which act as signaling molecules that regulate cellular homeostasis and other processes. This gene may be associated with autism spectrum disorder in human patients. [provided by RefSeq, Sep 2016]

PPIP5K2 links:

Genome browser will be placed here

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;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PPIP5K2. . Gene score misZ 3.8022 (greater than the threshold 3.09). Trascript score misZ 4.0872 (greater than threshold 3.09). GenCC has associacion of gene with hearing loss, autosomal recessive 100, hearing loss, autosomal recessive.

BP4

Computational evidence support a benign effect (MetaRNN=0.2552634).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PPIP5K2	NM_001276277.3 linkuse as main transcript	c.485A>C	p.Lys162Thr	missense_variant, splice_region_variant	5/31	ENST00000358359.8	NP_001263206.1	O43314-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PPIP5K2	ENST00000358359.8 linkuse as main transcript	c.485A>C	p.Lys162Thr	missense_variant, splice_region_variant	5/31	1	NM_001276277.3	ENSP00000351126.3		O43314-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

247500

Hom.:

AF XY:

0.0000224

AC XY:

AN XY:

133870

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:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000667

AC:

AN:

1440264

Hom.:

Cov.:

AF XY:

0.0000585

AC XY:

AN XY:

717626

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000850

Gnomad4 OTH exome

AF:

0.0000503

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74326

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000550

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 21, 2022

The c.485A>C (p.K162T) alteration is located in exon 4 (coding exon 4) of the PPIP5K2 gene. This alteration results from a A to C substitution at nucleotide position 485, causing the lysine (K) at amino acid position 162 to be replaced by a threonine (T). 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

0.095

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.51

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.16

.;.;T;T;T;.;T;T

Eigen

Benign

0.054

Eigen_PC

Benign

0.22

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.94

.;D;D;.;D;D;D;D

M_CAP

Benign

0.0043

MetaRNN

Benign

0.26

T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;.;L;.;.;L;.;.

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-3.5

D;D;D;.;.;D;.;D

REVEL

Benign

0.16

Sift

Benign

0.16

T;T;T;.;.;T;.;T

Sift4G

Benign

0.16

T;T;T;T;D;T;T;T

Polyphen

0.0

B;B;B;.;.;B;.;.

Vest4

0.21

MutPred

0.39

Loss of ubiquitination at K162 (P = 0.0074);.;Loss of ubiquitination at K162 (P = 0.0074);Loss of ubiquitination at K162 (P = 0.0074);.;Loss of ubiquitination at K162 (P = 0.0074);Loss of ubiquitination at K162 (P = 0.0074);.;

MVP

0.47

MPC

1.0

ClinPred

0.62

GERP RS

4.9

Varity_R

0.70

gMVP

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.18

dbscSNV1_RF

Benign

0.45

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