Genetic Variant BLVRB:p.His49His (chr19-40458478-G-A) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_StrongBP6_ModerateBP7

The NM_000713.3(BLVRB):c.147C>T(p.His49His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000733 in 1,608,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

BLVRB
NM_000713.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.566

Publications

2 publications found

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]

BLVRB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant 19-40458478-G-A is Benign according to our data. Variant chr19-40458478-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 710783.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.566 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000713.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BLVRB	NM_000713.3	MANE Select	c.147C>T	p.His49His	synonymous	Exon 2 of 5	NP_000704.1	P30043

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BLVRB	ENST00000263368.9	TSL:1 MANE Select	c.147C>T	p.His49His	synonymous	Exon 2 of 5	ENSP00000263368.3	P30043
BLVRB	ENST00000643519.1		c.147C>T	p.His49His	synonymous	Exon 2 of 4	ENSP00000494515.1	A0A2R8YEP4
BLVRB	ENST00000926837.1		c.147C>T	p.His49His	synonymous	Exon 2 of 5	ENSP00000596896.1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000250

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000592

AC:

AN:

236580

AF XY:

0.0000621

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 FIN exome

AF:

0.0000510

Gnomad NFE exome

AF:

0.000113

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000686

AC:

100

AN:

1456822

Hom.:

Cov.:

AF XY:

0.0000746

AC XY:

AN XY:

724322

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33416

American (AMR)

AF:

0.00

AC:

AN:

44120

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26006

East Asian (EAS)

AF:

0.00

AC:

AN:

39528

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85158

European-Finnish (FIN)

AF:

0.0000572

AC:

AN:

52460

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000847

AC:

AN:

1110236

Other (OTH)

AF:

0.0000333

AC:

AN:

60138

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000118

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.0000654

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000250

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000302

Hom.:

Bravo

AF:

0.0000378

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.62

CADD

Benign

1.7

(source)

DANN

Benign

0.44

PhyloP100

-0.57

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over