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GeneBe

20-33288741-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_033197.3(BPIFB1):ā€‹c.116A>Gā€‹(p.Lys39Arg) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0014 in 1,613,412 control chromosomes in the GnomAD database, including 36 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.0076 ( 19 hom., cov: 33)
Exomes š‘“: 0.00075 ( 17 hom. )

Consequence

BPIFB1
NM_033197.3 missense, splice_region

Scores

17
Splicing: ADA: 0.00005259
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.756
Variant links:
Genes affected
BPIFB1 (HGNC:16108): (BPI fold containing family B member 1) The protein encoded by this gene may be involved in the innate immune response to bacterial exposure in the mouth, nasal cavities, and lungs. The encoded protein is secreted and is a member of the BPI/LBP/PLUNC protein superfamily. This gene is found with other members of the superfamily in a cluster on chromosome 20. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0028855205).
BP6
Variant 20-33288741-A-G is Benign according to our data. Variant chr20-33288741-A-G is described in ClinVar as [Benign]. Clinvar id is 780603.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00764 (1163/152234) while in subpopulation AFR AF= 0.0262 (1090/41550). AF 95% confidence interval is 0.0249. There are 19 homozygotes in gnomad4. There are 590 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 19 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BPIFB1NM_033197.3 linkuse as main transcriptc.116A>G p.Lys39Arg missense_variant, splice_region_variant 3/16 ENST00000253354.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BPIFB1ENST00000253354.2 linkuse as main transcriptc.116A>G p.Lys39Arg missense_variant, splice_region_variant 3/161 NM_033197.3 P1Q8TDL5-1
BPIFB1ENST00000423645.5 linkuse as main transcriptc.116A>G p.Lys39Arg missense_variant, splice_region_variant 3/53

Frequencies

GnomAD3 genomes
AF:
0.00765
AC:
1163
AN:
152116
Hom.:
19
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0263
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00367
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:
0.0000882
Gnomad OTH
AF:
0.00527
GnomAD3 exomes
AF:
0.00198
AC:
492
AN:
248018
Hom.:
10
AF XY:
0.00159
AC XY:
214
AN XY:
134398
show subpopulations
Gnomad AFR exome
AF:
0.0250
Gnomad AMR exome
AF:
0.00215
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:
0.0000632
Gnomad OTH exome
AF:
0.00115
GnomAD4 exome
AF:
0.000749
AC:
1095
AN:
1461178
Hom.:
17
Cov.:
32
AF XY:
0.000667
AC XY:
485
AN XY:
726860
show subpopulations
Gnomad4 AFR exome
AF:
0.0243
Gnomad4 AMR exome
AF:
0.00195
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000648
Gnomad4 OTH exome
AF:
0.00199
GnomAD4 genome
AF:
0.00764
AC:
1163
AN:
152234
Hom.:
19
Cov.:
33
AF XY:
0.00793
AC XY:
590
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.0262
Gnomad4 AMR
AF:
0.00366
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00170
Hom.:
1
Bravo
AF:
0.00858
ESP6500AA
AF:
0.0245
AC:
108
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00254
AC:
309
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJun 29, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
1.8
DANN
Benign
0.73
DEOGEN2
Benign
0.024
T;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.53
T;T
MetaRNN
Benign
0.0029
T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.99
N;N
REVEL
Benign
0.050
Sift
Benign
0.61
T;T
Sift4G
Benign
0.47
T;T
Polyphen
0.0010
.;B
Vest4
0.040
MVP
0.085
MPC
0.14
ClinPred
0.0091
T
GERP RS
-10
Varity_R
0.027
gMVP
0.29

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000053
dbscSNV1_RF
Benign
0.064
SpliceAI score (max)
0.080
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: rs61737957; hg19: chr20-31876547; API