12-122986332-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_020845.3(PITPNM2):​c.3745G>A​(p.Ala1249Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000108 in 1,579,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

PITPNM2
NM_020845.3 missense

Scores

3
14
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.87
Variant links:
Genes affected
PITPNM2 (HGNC:21044): (phosphatidylinositol transfer protein membrane associated 2) PITPNM2 belongs to a family of membrane-associated phosphatidylinositol transfer domain-containing proteins that share homology with the Drosophila retinal degeneration B (rdgB) protein (Ocaka et al., 2005 [PubMed 15627748]).[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.811
BS2
High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PITPNM2NM_020845.3 linkuse as main transcriptc.3745G>A p.Ala1249Thr missense_variant 26/26 ENST00000320201.10 NP_065896.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PITPNM2ENST00000320201.10 linkuse as main transcriptc.3745G>A p.Ala1249Thr missense_variant 26/265 NM_020845.3 ENSP00000322218 P3Q9BZ72-1
PITPNM2ENST00000280562.9 linkuse as main transcriptc.3727G>A p.Ala1243Thr missense_variant 25/255 ENSP00000280562 A2Q9BZ72-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152234
Hom.:
0
Cov.:
33
show subpopulations
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000500
AC:
1
AN:
200104
Hom.:
0
AF XY:
0.00000912
AC XY:
1
AN XY:
109658
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:
0.0000113
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000105
AC:
15
AN:
1426828
Hom.:
0
Cov.:
31
AF XY:
0.0000113
AC XY:
8
AN XY:
706472
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:
0.0000128
Gnomad4 OTH exome
AF:
0.0000170
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152234
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
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
Bravo
AF:
0.0000189

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 submitterclinical testingAmbry GeneticsJun 09, 2022The c.3745G>A (p.A1249T) alteration is located in exon 25 (coding exon 24) of the PITPNM2 gene. This alteration results from a G to A substitution at nucleotide position 3745, causing the alanine (A) at amino acid position 1249 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
Uncertain
0.53
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.060
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.58
D;.;D
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.98
.;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.81
D;D;D
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Uncertain
2.8
M;.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-2.9
D;D;D
REVEL
Benign
0.29
Sift
Uncertain
0.0040
D;D;D
Sift4G
Uncertain
0.0040
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.65
MVP
0.50
MPC
2.1
ClinPred
0.97
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.26
gMVP
0.52

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.

Other links and lift over

dbSNP: rs749727607; hg19: chr12-123470879; API