chr20-33083531-G-A

Variant summary

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

The NM_182519.3(BPIFB4):​c.334G>A​(p.Glu112Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000143 in 1,613,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

BPIFB4
NM_182519.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.82
Variant links:
Genes affected
BPIFB4 (HGNC:16179): (BPI fold containing family B member 4) Predicted to enable lipid binding activity. Predicted to be located in cytoplasm and 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=0.08332926).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BPIFB4NM_182519.3 linkuse as main transcriptc.334G>A p.Glu112Lys missense_variant 5/18 ENST00000375483.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BPIFB4ENST00000375483.4 linkuse as main transcriptc.334G>A p.Glu112Lys missense_variant 5/185 NM_182519.3 P1P59827-1
BPIFB4ENST00000674031.1 linkuse as main transcriptc.700G>A p.Glu234Lys missense_variant 2/15
BPIFB4ENST00000445356.1 linkuse as main transcriptc.106+1899G>A intron_variant, NMD_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152060
Hom.:
0
Cov.:
31
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251410
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000381
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461832
Hom.:
0
Cov.:
36
AF XY:
0.0000138
AC XY:
10
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:
0.000302
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152060
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74276
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ExAC
AF:
0.0000330
AC:
4

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 GeneticsJun 29, 2023The c.334G>A (p.E112K) alteration is located in exon 3 (coding exon 3) of the BPIFB4 gene. This alteration results from a G to A substitution at nucleotide position 334, causing the glutamic acid (E) at amino acid position 112 to be replaced by a lysine (K). 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
0.10
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0020
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.59
D
LIST_S2
Benign
0.74
T
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.083
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.23
N
REVEL
Benign
0.11
Sift
Uncertain
0.0050
D
Sift4G
Benign
0.096
T
Polyphen
0.17
B
Vest4
0.23
MutPred
0.43
Gain of MoRF binding (P = 0.0025);
MVP
0.014
MPC
0.067
ClinPred
0.13
T
GERP RS
3.3
Varity_R
0.096
gMVP
0.24

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: rs781326746; hg19: chr20-31671337; COSMIC: COSV64952136; API