Variant 20-33223840-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_178466.5(BPIFA3):c.157G>A(p.Ala53Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000849 in 1,614,022 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

BPIFA3
NM_178466.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.983

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]

BPIFA3 links:

BPIFA3 (HGNC:):

BPIFA3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.022490919).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BPIFA3	NM_178466.5 linkuse as main transcript	c.157G>A	p.Ala53Thr	missense_variant	2/7	ENST00000375454.8	NP_848561.2	Q9BQP9-1
BPIFA3	NM_001042439.2 linkuse as main transcript	c.157G>A	p.Ala53Thr	missense_variant	2/6		NP_001035904.1	Q9BQP9-2
BPIFA3	XR_244132.4 linkuse as main transcript	n.384G>A		non_coding_transcript_exon_variant	2/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
BPIFA3	ENST00000375454.8 linkuse as main transcript	c.157G>A	p.Ala53Thr	missense_variant	2/7	5	NM_178466.5	ENSP00000364603.3	Q9BQP9-1
BPIFA3	ENST00000375452.3 linkuse as main transcript	c.157G>A	p.Ala53Thr	missense_variant	2/6	1		ENSP00000364601.3	Q9BQP9-2
BPIFA3	ENST00000490499.5 linkuse as main transcript	n.536G>A		non_coding_transcript_exon_variant	3/7	1
BPIFA3	ENST00000471233.1 linkuse as main transcript	n.367G>A		non_coding_transcript_exon_variant	2/7	5

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00290

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000163

AC:

AN:

251164

Hom.:

AF XY:

0.000169

AC XY:

AN XY:

135718

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:

0.00134

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000828

AC:

121

AN:

1461748

Hom.:

Cov.:

AF XY:

0.000109

AC XY:

AN XY:

727148

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00112

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000105

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00290

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000675

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.000165

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

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 submitter

clinical testing

Ambry Genetics

Aug 17, 2022

The c.157G>A (p.A53T) alteration is located in exon 2 (coding exon 2) of the BPIFA3 gene. This alteration results from a G to A substitution at nucleotide position 157, causing the alanine (A) at amino acid position 53 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

Benign

0.089

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.69

CADD

Benign

7.5

DANN

Benign

0.91

DEOGEN2

Benign

0.0043

T;.

Eigen

Benign

-0.86

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.047

LIST_S2

Benign

0.59

T;T

M_CAP

Benign

0.0044

MetaRNN

Benign

0.022

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.99

L;L

PrimateAI

Benign

0.30

PROVEAN

Benign

-0.71

N;N

REVEL

Benign

0.058

Sift

Benign

0.31

T;T

Sift4G

Benign

0.26

T;T

Polyphen

0.75

P;P

Vest4

0.18

MutPred

0.63

Loss of ubiquitination at K50 (P = 0.1091);Loss of ubiquitination at K50 (P = 0.1091);

MVP

0.14

MPC

0.034

ClinPred

0.038

GERP RS

2.1

Varity_R

0.029

gMVP

0.31

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.20

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.20

Position offset: -29

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over