1-203056885-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001304331.2(PPFIA4):​c.2342G>A​(p.Arg781His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

PPFIA4
NM_001304331.2 missense

Scores

8
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
PPFIA4 (HGNC:9248): (PTPRF interacting protein alpha 4) PPFIA4, or liprin-alpha-4, belongs to the liprin-alpha gene family. See liprin-alpha-1 (LIP1, or PPFIA1; MIM 611054) for background on liprins.[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PPFIA4NM_001304331.2 linkuse as main transcriptc.2342G>A p.Arg781His missense_variant 19/30 ENST00000295706.9 NP_001291260.1 O75335A0A8J8YUZ5B4DIS5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PPFIA4ENST00000295706.9 linkuse as main transcriptc.2342G>A p.Arg781His missense_variant 19/305 NM_001304331.2 ENSP00000295706.5 A0A8J8YUZ5

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152254
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
249378
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135296
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:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461712
Hom.:
0
Cov.:
32
AF XY:
0.0000165
AC XY:
12
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152254
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000825
AC:
1

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 GeneticsApr 06, 2023The c.824G>A (p.R275H) alteration is located in exon 6 (coding exon 6) of the PPFIA4 gene. This alteration results from a G to A substitution at nucleotide position 824, causing the arginine (R) at amino acid position 275 to be replaced by a histidine (H). 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
Pathogenic
0.78
BayesDel_addAF
Uncertain
0.089
D
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.31
T;.;T;.;.
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D;D;D;D;.
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.67
D;D;D;D;D
MetaSVM
Benign
-0.66
T
MutationAssessor
Uncertain
2.8
.;.;M;.;.
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-4.7
D;D;D;D;.
REVEL
Uncertain
0.47
Sift
Uncertain
0.0060
D;D;D;D;.
Sift4G
Uncertain
0.0020
D;D;D;D;D
Polyphen
1.0
.;D;.;.;D
Vest4
0.60
MVP
0.76
MPC
1.4
ClinPred
0.99
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.49
gMVP
0.62

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: rs778704069; hg19: chr1-203026013; API