chr20-33081613-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_182519.3(BPIFB4):​c.87G>A​(p.Thr29Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,551,610 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

BPIFB4
NM_182519.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.298
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP7
Synonymous conserved (PhyloP=-0.298 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BPIFB4NM_182519.3 linkuse as main transcriptc.87G>A p.Thr29Thr synonymous_variant 3/18 ENST00000375483.4 NP_872325.2 P59827-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BPIFB4ENST00000375483.4 linkuse as main transcriptc.87G>A p.Thr29Thr synonymous_variant 3/185 NM_182519.3 ENSP00000364632.3 P59827-1
BPIFB4ENST00000674031.1 linkuse as main transcriptc.87G>A p.Thr29Thr synonymous_variant 1/15 ENSP00000501266.1 A0A669KBJ0
BPIFB4ENST00000445356.1 linkuse as main transcriptn.87G>A non_coding_transcript_exon_variant 3/72 ENSP00000388423.1 F8WEG9

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152268
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000205
AC:
32
AN:
156248
Hom.:
0
AF XY:
0.000242
AC XY:
20
AN XY:
82796
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00130
Gnomad EAS exome
AF:
0.0000917
Gnomad SAS exome
AF:
0.0000439
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000281
Gnomad OTH exome
AF:
0.000457
GnomAD4 exome
AF:
0.000153
AC:
214
AN:
1399342
Hom.:
0
Cov.:
30
AF XY:
0.000171
AC XY:
118
AN XY:
690176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000280
Gnomad4 ASJ exome
AF:
0.00127
Gnomad4 EAS exome
AF:
0.0000280
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000159
Gnomad4 OTH exome
AF:
0.000138
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152268
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000259
Hom.:
0
Bravo
AF:
0.000102

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 GeneticsNov 14, 2024This 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
BayesDel_noAF
Benign
-0.67
CADD
Benign
7.6
DANN
Benign
0.66

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: rs779848889; hg19: chr20-31669419; API