Genetic Variant BPHL:p.Leu146Phe (chr6-3129102-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_004332.4(BPHL):c.436C>T(p.Leu146Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,613,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

BPHL
NM_004332.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.78

Variant links:

Genes affected

BPHL (HGNC:1094): (biphenyl hydrolase like) This gene encodes a member of the serine protease family of hydrolytic enzymes which contain a serine in their active site. The encoded protein may play a role in activation of the antiviral prodrug valacyclovir. Alternatively spliced transcript variants have been described.[provided by RefSeq, Jan 2009]

BPHL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.749

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BPHL	NM_004332.4 link	c.436C>T	p.Leu146Phe	missense_variant	Exon 4 of 7	ENST00000380379.10	NP_004323.2	Q86WA6-1Q49AI2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BPHL	ENST00000380379.10 link	c.436C>T	p.Leu146Phe	missense_variant	Exon 4 of 7	1	NM_004332.4	ENSP00000369739.5		Q86WA6-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152258

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:

0.000576

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000399

AC:

AN:

250472

Hom.:

AF XY:

0.0000517

AC XY:

AN XY:

135310

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000436

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461332

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726928

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000202

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152376

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74520

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 03, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.436C>T (p.L146F) alteration is located in exon 4 (coding exon 4) of the BPHL gene. This alteration results from a C to T substitution at nucleotide position 436, causing the leucine (L) at amino acid position 146 to be replaced by a phenylalanine (F). 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

Uncertain

0.55

BayesDel_addAF

Benign

-0.019

BayesDel_noAF

Uncertain

0.060

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.058

.;T;T;.

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

0.97

.;D;D;D

M_CAP

Uncertain

0.094

MetaRNN

Pathogenic

0.75

D;D;D;D

MetaSVM

Benign

-0.30

MutationAssessor

Pathogenic

3.4

.;M;.;.

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-3.4

D;D;D;D

REVEL

Uncertain

0.51

Sift

Uncertain

0.0050

D;D;T;D

Sift4G

Uncertain

0.025

D;D;D;D

Polyphen

0.94

P;P;.;P

Vest4

0.63

MVP

0.78

MPC

0.65

ClinPred

0.84

GERP RS

5.2

Varity_R

0.74

gMVP

0.85

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over