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rs777243508

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_006767.4(LZTR1):c.1407G>A(p.Trp469Ter) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000688 in 1,612,468 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

LZTR1
NM_006767.4 stop_gained

Scores

5
1
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 7.76
Variant links:
Genes affected
LZTR1 (HGNC:6742): (leucine zipper like post translational regulator 1) This gene encodes a member of the BTB-kelch superfamily. Initially described as a putative transcriptional regulator based on weak homology to members of the basic leucine zipper-like family, the encoded protein subsequently has been shown to localize exclusively to the Golgi network where it may help stabilize the Gogli complex. Deletion of this gene may be associated with DiGeorge syndrome. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 22-20993977-G-A is Pathogenic according to our data. Variant chr22-20993977-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 549753.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LZTR1NM_006767.4 linkuse as main transcriptc.1407G>A p.Trp469Ter stop_gained 13/21 ENST00000646124.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LZTR1ENST00000646124.2 linkuse as main transcriptc.1407G>A p.Trp469Ter stop_gained 13/21 NM_006767.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
152258
Hom.:
0
Cov.:
34
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:
0.00235
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000138
AC:
34
AN:
246400
Hom.:
0
AF XY:
0.000150
AC XY:
20
AN XY:
133646
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00149
Gnomad NFE exome
AF:
0.00000900
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.0000582
AC:
85
AN:
1460092
Hom.:
0
Cov.:
34
AF XY:
0.0000565
AC XY:
41
AN XY:
726298
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00156
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000171
AC:
26
AN:
152376
Hom.:
0
Cov.:
34
AF XY:
0.000282
AC XY:
21
AN XY:
74518
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:
0.00235
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000699
Hom.:
0
ExAC
AF:
0.0000990
AC:
12

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInvitaeJul 18, 2022This variant is present in population databases (rs777243508, gnomAD 0.1%). For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 549753). This premature translational stop signal has been observed in individual(s) with milder Noonan syndrome-like features (PMID: 30859559). This sequence change creates a premature translational stop signal (p.Trp469*) in the LZTR1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in LZTR1 are known to be pathogenic (PMID: 24362817, 25335493, 25480913, 25795793, 29469822, 30442762, 30442766, 30481304, 30859559). -
Noonan syndrome 2 Pathogenic:1
Pathogenic, criteria provided, single submitterresearchGenomic Medicine Theme, NIHR Oxford Biomedical Research Centre, University of OxfordJul 02, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.57
D
BayesDel_noAF
Pathogenic
0.57
Cadd
Pathogenic
46
Dann
Uncertain
1.0
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.92
FATHMM_MKL
Pathogenic
0.98
D
MutationTaster
Benign
1.0
A;A
Vest4
0.23
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs777243508; hg19: chr22-21348266; API