19-40447984-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000713.3(BLVRB):ā€‹c.526A>Gā€‹(p.Ile176Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000304 in 1,614,020 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 30)
Exomes š‘“: 0.000031 ( 0 hom. )

Consequence

BLVRB
NM_000713.3 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.73
Variant links:
Genes affected
BLVRB (HGNC:1063): (biliverdin reductase B) Enables biliverdin reductase (NAD(P)+) activity and riboflavin reductase (NADPH) activity. Involved in heme catabolic process. Located in cytosol; nucleoplasm; and plasma membrane. [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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BLVRBNM_000713.3 linkuse as main transcriptc.526A>G p.Ile176Val missense_variant 5/5 ENST00000263368.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BLVRBENST00000263368.9 linkuse as main transcriptc.526A>G p.Ile176Val missense_variant 5/51 NM_000713.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152150
Hom.:
0
Cov.:
30
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251440
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135904
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000308
AC:
45
AN:
1461870
Hom.:
0
Cov.:
30
AF XY:
0.0000440
AC XY:
32
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000405
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152150
Hom.:
0
Cov.:
30
AF XY:
0.0000269
AC XY:
2
AN XY:
74320
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
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 submitterclinical testingAmbry GeneticsSep 06, 2022The c.526A>G (p.I176V) alteration is located in exon 5 (coding exon 5) of the BLVRB gene. This alteration results from a A to G substitution at nucleotide position 526, causing the isoleucine (I) at amino acid position 176 to be replaced by a valine (V). 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
0.33
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.022
.;T;T
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.86
D;T;D
M_CAP
Benign
0.026
D
MetaRNN
Uncertain
0.46
T;T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Uncertain
2.4
.;.;M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.70
.;.;N
REVEL
Benign
0.24
Sift
Benign
0.22
.;.;T
Sift4G
Uncertain
0.059
.;T;T
Polyphen
0.99
.;.;D
Vest4
0.46, 0.43
MVP
0.47
MPC
0.70
ClinPred
0.90
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.41

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: rs368720101; hg19: chr19-40953891; API