20-23364532-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 4P and 3B. PM1PM2BP4_ModerateBS1_Supporting

The NM_022482.5(GZF1):c.149A>G(p.Lys50Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000229 in 1,614,244 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. K50K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

GZF1
NM_022482.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.21

Variant links:

Genes affected

GZF1 (HGNC:15808): (GDNF inducible zinc finger protein 1) Enables DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in negative regulation of transcription by RNA polymerase II. Located in nucleolus and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

GZF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM1

In a mutagenesis_site Decreased repression activity. (size 0) in uniprot entity GZF1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13179082).

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000239 (35/1461890) while in subpopulation SAS AF= 0.000104 (9/86258). AF 95% confidence interval is 0.0000539. There are 0 homozygotes in gnomad4_exome. There are 19 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GZF1	NM_022482.5 linkuse as main transcript	c.149A>G	p.Lys50Arg	missense_variant	2/6	ENST00000338121.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GZF1	ENST00000338121.10 linkuse as main transcript	c.149A>G	p.Lys50Arg	missense_variant	2/6	1	NM_022482.5	P1	Q9H116-1
GZF1	ENST00000377051.2 linkuse as main transcript	c.149A>G	p.Lys50Arg	missense_variant	1/5	1		P1	Q9H116-1
GZF1	ENST00000424216.1 linkuse as main transcript			downstream_gene_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000437

AC:

AN:

251472

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135920

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:

0.000229

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000239

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727248

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:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000234

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152354

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2023

The c.149A>G (p.K50R) alteration is located in exon 1 (coding exon 1) of the GZF1 gene. This alteration results from a A to G substitution at nucleotide position 149, causing the lysine (K) at amino acid position 50 to be replaced by an arginine (R). 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

0.13

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.11

T;T

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.26

FATHMM_MKL

Uncertain

0.84

M_CAP

Benign

0.055

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

0.29

N;N

MutationTaster

Benign

0.88

D;D;D;D

PrimateAI

Benign

0.40

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.20

Sift

Benign

0.22

T;T

Sift4G

Benign

0.25

T;T

Polyphen

0.026

B;B

Vest4

0.35

MVP

0.68

MPC

0.94

ClinPred

0.082

GERP RS

4.2

Varity_R

0.10

gMVP

0.63

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