20-33225105-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_178466.5(BPIFA3):​c.394G>A​(p.Asp132Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000163 in 1,613,932 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

BPIFA3
NM_178466.5 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.836
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.014087558).
BP6
Variant 20-33225105-G-A is Benign according to our data. Variant chr20-33225105-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3134818.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BPIFA3NM_178466.5 linkuse as main transcriptc.394G>A p.Asp132Asn missense_variant 4/7 ENST00000375454.8 NP_848561.2 Q9BQP9-1
BPIFA3NM_001042439.2 linkuse as main transcriptc.286G>A p.Asp96Asn missense_variant 3/6 NP_001035904.1 Q9BQP9-2
BPIFA3XR_244132.4 linkuse as main transcriptn.621G>A non_coding_transcript_exon_variant 4/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BPIFA3ENST00000375454.8 linkuse as main transcriptc.394G>A p.Asp132Asn missense_variant 4/75 NM_178466.5 ENSP00000364603.3 Q9BQP9-1
BPIFA3ENST00000375452.3 linkuse as main transcriptc.286G>A p.Asp96Asn missense_variant 3/61 ENSP00000364601.3 Q9BQP9-2
BPIFA3ENST00000490499.5 linkuse as main transcriptn.773G>A non_coding_transcript_exon_variant 5/71
BPIFA3ENST00000471233.1 linkuse as main transcriptn.604G>A non_coding_transcript_exon_variant 4/75

Frequencies

GnomAD3 genomes
AF:
0.000441
AC:
67
AN:
152034
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00133
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000831
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000962
GnomAD3 exomes
AF:
0.000267
AC:
67
AN:
251112
Hom.:
0
AF XY:
0.000251
AC XY:
34
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.00148
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00108
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000705
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000134
AC:
196
AN:
1461780
Hom.:
1
Cov.:
30
AF XY:
0.000160
AC XY:
116
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.00102
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00108
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000351
Gnomad4 OTH exome
AF:
0.000281
GnomAD4 genome
AF:
0.000440
AC:
67
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.000457
AC XY:
34
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.00133
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000832
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000951
Alfa
AF:
0.000105
Hom.:
0
Bravo
AF:
0.000514
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000264
AC:
32
Asia WGS
AF:
0.00260
AC:
9
AN:
3476
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJan 10, 2022This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.72
T
BayesDel_noAF
Benign
-0.84
CADD
Benign
3.3
DANN
Benign
0.62
DEOGEN2
Benign
0.0013
T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.0043
N
LIST_S2
Benign
0.53
T;T
M_CAP
Benign
0.0023
T
MetaRNN
Benign
0.014
T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
-0.46
N;.
PrimateAI
Benign
0.35
T
PROVEAN
Benign
0.17
N;N
REVEL
Benign
0.024
Sift
Benign
0.58
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0050
B;B
Vest4
0.12
MVP
0.067
MPC
0.020
ClinPred
0.0044
T
GERP RS
-0.14
Varity_R
0.035
gMVP
0.050

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: rs150349800; hg19: chr20-31812911; COSMIC: COSV64926233; API