Genetic Variant NM_021020.5:c.1720G>C (chr8-20249793-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_021020.5(LZTS1):c.1720G>C(p.Gly574Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

LZTS1
NM_021020.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.67

Publications

0 publications found

Variant links:

Genes affected

LZTS1 (HGNC:13861): (leucine zipper tumor suppressor 1) This gene encodes a tumor suppressor protein that is ubiquitously expressed in normal tissues. In uveal melanomas, expression of this protein is silenced in rapidly metastasizing and metastatic tumor cells but has normal expression in slowly metastasizing or nonmetastasizing tumor cells. This protein may have a role in cell-cycle control by interacting with the Cdk1/cyclinB1 complex. This gene is located on chromosomal region 8p22. Loss of heterozygosity (LOH) in the 8p arm is a common characteristic of many types of cancer. [provided by RefSeq, Nov 2009]

LZTS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04893431).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021020.5. 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
	LZTS1	NM_021020.5	MANE Select	c.1720G>C	p.Gly574Arg	missense	Exon 4 of 4	NP_066300.1	Q9Y250-1
	LZTS1	NM_001362884.2		c.1720G>C	p.Gly574Arg	missense	Exon 4 of 4	NP_001349813.1	Q9Y250-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LZTS1	ENST00000381569.5	TSL:5 MANE Select	c.1720G>C	p.Gly574Arg	missense	Exon 4 of 4	ENSP00000370981.1	Q9Y250-1
LZTS1	ENST00000265801.6	TSL:1	c.1720G>C	p.Gly574Arg	missense	Exon 3 of 3	ENSP00000265801.6	Q9Y250-1
LZTS1	ENST00000522290.5	TSL:1	c.1543G>C	p.Gly515Arg	missense	Exon 4 of 4	ENSP00000429263.1	Q9Y250-4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461612

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727146

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53156

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

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

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Benign

0.55

DEOGEN2

Benign

0.068

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.64

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.73

M_CAP

Benign

0.018

MetaRNN

Benign

0.049

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.26

PhyloP100

1.7

PrimateAI

Benign

0.44

PROVEAN

Benign

3.0

REVEL

Benign

0.12

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.84

Vest4

0.059

MutPred

0.19

Gain of solvent accessibility (P = 0.0971)

MVP

0.36

MPC

0.83

ClinPred

0.23

GERP RS

5.2

Varity_R

0.047

gMVP

0.12

Mutation Taster

=82/18

polymorphism

(source)

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over