chr19-3633461-C-CG

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PVS1_Moderate

The NM_012398.3(PIP5K1C):​c.1979dupC​(p.Ala661GlyfsTer81) variant causes a frameshift change. The variant allele was found at a frequency of 0.000351 in 1,501,830 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00036 ( 0 hom. )

Consequence

PIP5K1C
NM_012398.3 frameshift

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.39
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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.014 CDS is truncated, and there are 0 pathogenic variants in the truncated region.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PIP5K1CNM_012398.3 linkc.1979dupC p.Ala661GlyfsTer81 frameshift_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
PIP5K1CENST00000335312.8 linkc.1979dupC p.Ala661GlyfsTer81 frameshift_variant Exon 17 of 18 1 NM_012398.3 ENSP00000335333.3 O60331-1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152084
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000266
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000917
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000294
AC:
46
AN:
156664
AF XY:
0.000319
show subpopulations
Gnomad AFR exome
AF:
0.000161
Gnomad AMR exome
AF:
0.000257
Gnomad ASJ exome
AF:
0.000585
Gnomad EAS exome
AF:
0.0000748
Gnomad FIN exome
AF:
0.000136
Gnomad NFE exome
AF:
0.000292
Gnomad OTH exome
AF:
0.00144
GnomAD4 exome
AF:
0.000357
AC:
482
AN:
1349628
Hom.:
0
Cov.:
31
AF XY:
0.000343
AC XY:
227
AN XY:
661000
show subpopulations
Gnomad4 AFR exome
AF:
0.0000999
AC:
3
AN:
30036
Gnomad4 AMR exome
AF:
0.000388
AC:
12
AN:
30954
Gnomad4 ASJ exome
AF:
0.000100
AC:
2
AN:
19902
Gnomad4 EAS exome
AF:
0.0000798
AC:
3
AN:
37612
Gnomad4 SAS exome
AF:
0.000294
AC:
20
AN:
68074
Gnomad4 FIN exome
AF:
0.000375
AC:
18
AN:
48056
Gnomad4 NFE exome
AF:
0.000372
AC:
392
AN:
1054478
Gnomad4 Remaining exome
AF:
0.000470
AC:
26
AN:
55300
Heterozygous variant carriers
0
20
41
61
82
102
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000296
AC:
45
AN:
152202
Hom.:
1
Cov.:
33
AF XY:
0.000175
AC XY:
13
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.000265
AC:
0.000264869
AN:
0.000264869
Gnomad4 AMR
AF:
0.000916
AC:
0.000915631
AN:
0.000915631
Gnomad4 ASJ
AF:
0.00
AC:
0
AN:
0
Gnomad4 EAS
AF:
0.00
AC:
0
AN:
0
Gnomad4 SAS
AF:
0.00
AC:
0
AN:
0
Gnomad4 FIN
AF:
0.000189
AC:
0.000188573
AN:
0.000188573
Gnomad4 NFE
AF:
0.000250
AC:
0.000250059
AN:
0.000250059
Gnomad4 OTH
AF:
0.00
AC:
0
AN:
0
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000218
Hom.:
0
Bravo
AF:
0.000314
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Feb 07, 2025
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Frameshift variant predicted to result in abnormal protein length as the last 8 amino acid(s) are replaced with 80 different amino acid(s); Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
Mutation Taster
=13/187
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs748532409; hg19: chr19-3633459; COSMIC: COSV58951217; COSMIC: COSV58951217; API