chr1-203055487-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001304331.2(PPFIA4):​c.1885C>T​(p.Arg629Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000342 in 1,461,710 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: not found (cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

PPFIA4
NM_001304331.2 missense

Scores

6
7
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.14
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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.762

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PPFIA4NM_001304331.2 linkuse as main transcriptc.1885C>T p.Arg629Cys missense_variant 16/30 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.1885C>T p.Arg629Cys missense_variant 16/305 NM_001304331.2 ENSP00000295706.5 A0A8J8YUZ5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
249284
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135240
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000342
AC:
50
AN:
1461710
Hom.:
0
Cov.:
32
AF XY:
0.0000289
AC XY:
21
AN XY:
727136
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.000243
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsJan 03, 2024The c.367C>T (p.R123C) alteration is located in exon 3 (coding exon 3) of the PPFIA4 gene. This alteration results from a C to T substitution at nucleotide position 367, causing the arginine (R) at amino acid position 123 to be replaced by a cysteine (C). 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
0.30
BayesDel_addAF
Benign
-0.052
T
BayesDel_noAF
Benign
-0.14
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.34
T;.;T;.;.
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
1.0
D;D;D;D;.
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.76
D;D;D;D;D
MetaSVM
Benign
-0.70
T
MutationAssessor
Uncertain
2.3
.;.;M;.;.
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-7.5
D;D;D;D;.
REVEL
Uncertain
0.31
Sift
Pathogenic
0.0
D;D;D;D;.
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
.;D;.;.;D
Vest4
0.82
MVP
0.64
MPC
1.5
ClinPred
0.98
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.68
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs747344170; hg19: chr1-203024615; COSMIC: COSV55318855; API