20-33217594-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_178466.5(BPIFA3):​c.58G>T​(p.Ala20Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

BPIFA3
NM_178466.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.42
Variant links:
Genes affected
BPIFA3 (HGNC:16204): (BPI fold containing family A member 3) Predicted to enable lipid binding activity. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09745845).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BPIFA3NM_178466.5 linkuse as main transcriptc.58G>T p.Ala20Ser missense_variant 1/7 ENST00000375454.8 NP_848561.2 Q9BQP9-1
BPIFA3NM_001042439.2 linkuse as main transcriptc.58G>T p.Ala20Ser missense_variant 1/6 NP_001035904.1 Q9BQP9-2
BPIFA3XR_244132.4 linkuse as main transcriptn.285G>T non_coding_transcript_exon_variant 1/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BPIFA3ENST00000375454.8 linkuse as main transcriptc.58G>T p.Ala20Ser missense_variant 1/75 NM_178466.5 ENSP00000364603.3 Q9BQP9-1
BPIFA3ENST00000375452.3 linkuse as main transcriptc.58G>T p.Ala20Ser missense_variant 1/61 ENSP00000364601.3 Q9BQP9-2
BPIFA3ENST00000490499.5 linkuse as main transcriptn.285G>T non_coding_transcript_exon_variant 1/71
BPIFA3ENST00000471233.1 linkuse as main transcriptn.268G>T non_coding_transcript_exon_variant 1/75

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
32
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:
0.00000797
AC:
2
AN:
251022
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135658
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461840
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
4
AN XY:
727220
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:
0.00000630
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74304
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

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 GeneticsDec 21, 2022The c.58G>T (p.A20S) alteration is located in exon 1 (coding exon 1) of the BPIFA3 gene. This alteration results from a G to T substitution at nucleotide position 58, causing the alanine (A) at amino acid position 20 to be replaced by a serine (S). 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
0.097
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
13
DANN
Benign
0.95
DEOGEN2
Benign
0.024
T;.
Eigen
Benign
-0.74
Eigen_PC
Benign
-0.85
FATHMM_MKL
Benign
0.058
N
LIST_S2
Benign
0.53
T;T
M_CAP
Benign
0.0052
T
MetaRNN
Benign
0.097
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L;L
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.37
N;N
REVEL
Benign
0.051
Sift
Benign
0.083
T;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.58
P;P
Vest4
0.20
MutPred
0.36
Gain of disorder (P = 0.0396);Gain of disorder (P = 0.0396);
MVP
0.19
MPC
0.037
ClinPred
0.10
T
GERP RS
2.1
Varity_R
0.036
gMVP
0.50

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: rs1315162773; hg19: chr20-31805400; API