Genetic Variant BLZF1:p.Glu122Lys (chr1-169376875-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001320973.2(BLZF1):c.364G>A(p.Glu122Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,613,038 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

BLZF1
NM_001320973.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.84

Variant links:

Genes affected

BLZF1 (HGNC:1065): (basic leucine zipper nuclear factor 1) Enables ubiquitin protein ligase binding activity. Acts upstream of or within Golgi organization and Golgi to plasma membrane protein transport. Located in Golgi apparatus and nucleoplasm. Biomarker of hepatocellular carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

BLZF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21892738).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BLZF1	NM_001320973.2 link	c.364G>A	p.Glu122Lys	missense_variant	Exon 3 of 7	ENST00000367808.8	NP_001307902.1	Q9H2G9-1
BLZF1	NM_003666.4 link	c.364G>A	p.Glu122Lys	missense_variant	Exon 3 of 8		NP_003657.1	Q9H2G9-1
BLZF1	NM_001320972.2 link	c.364G>A	p.Glu122Lys	missense_variant	Exon 3 of 3		NP_001307901.1	Q9H2G9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BLZF1	ENST00000367808.8 link	c.364G>A	p.Glu122Lys	missense_variant	Exon 3 of 7	1	NM_001320973.2	ENSP00000356782.3		Q9H2G9-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151962

Hom.:

Cov.:

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:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249646

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135348

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:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000171

AC:

AN:

1461076

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

726858

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:

0.0000225

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

151962

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74220

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:

0.0000589

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.364G>A (p.E122K) alteration is located in exon 3 (coding exon 2) of the BLZF1 gene. This alteration results from a G to A substitution at nucleotide position 364, causing the glutamic acid (E) at amino acid position 122 to be replaced by a lysine (K). 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

0.10

BayesDel_addAF

Benign

-0.0054

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.010

.;T;T;T;T

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

D;D;.;D;D

M_CAP

Benign

0.012

MetaRNN

Benign

0.22

T;T;T;T;T

MetaSVM

Benign

-0.81

MutationAssessor

Uncertain

2.6

M;M;M;.;.

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-2.5

N;N;N;N;N

REVEL

Benign

0.079

Sift

Benign

0.031

D;T;T;D;T

Sift4G

Benign

0.066

T;T;T;D;T

Polyphen

0.95

P;P;P;.;.

Vest4

0.32

MutPred

0.20

Gain of methylation at E122 (P = 0.0051);Gain of methylation at E122 (P = 0.0051);Gain of methylation at E122 (P = 0.0051);Gain of methylation at E122 (P = 0.0051);Gain of methylation at E122 (P = 0.0051);

MVP

0.52

MPC

0.43

ClinPred

0.76

GERP RS

5.4

Varity_R

0.13

gMVP

0.14

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