1-65565568-G-A

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_002303.6(LEPR):​c.3G>A​(p.Met1?) variant causes a start lost change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)

Consequence

LEPR
NM_002303.6 start_lost

Scores

4
7
5

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.71
Variant links:
Genes affected
LEPR (HGNC:6554): (leptin receptor) The protein encoded by this gene belongs to the gp130 family of cytokine receptors that are known to stimulate gene transcription via activation of cytosolic STAT proteins. This protein is a receptor for leptin (an adipocyte-specific hormone that regulates body weight), and is involved in the regulation of fat metabolism, as well as in a novel hematopoietic pathway that is required for normal lymphopoiesis. Mutations in this gene have been associated with obesity and pituitary dysfunction. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. It is noteworthy that this gene and LEPROT gene (GeneID:54741) share the same promoter and the first 2 exons, however, encode distinct proteins (PMID:9207021).[provided by RefSeq, Nov 2010]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-65565568-G-A is Pathogenic according to our data. Variant chr1-65565568-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3357044.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LEPRNM_002303.6 linkuse as main transcriptc.3G>A p.Met1? start_lost 3/20 ENST00000349533.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LEPRENST00000349533.11 linkuse as main transcriptc.3G>A p.Met1? start_lost 3/201 NM_002303.6 P4P48357-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

LEPR-related disorder Pathogenic:1
Likely pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 02, 2024The LEPR c.3G>A variant is predicted to disrupt the translation initiation site (Start Loss). This variant has been reported in the homozygous state in an individual with severe obesity (Courbage et al. 2021. PubMed ID: 34097736). A different start loss variant ( c.2T>C) has also been reported in the homozygous state in an individual with severe obesity (Saeed et al. 2020. PubMed ID: 32349990). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. This variant is interpreted as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Uncertain
0.11
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.092
.;.;T;.;.;.
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D;.;D;D;D;.
M_CAP
Pathogenic
0.49
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D
MetaSVM
Benign
-0.46
T
MutationTaster
Benign
1.0
D;D;D;D;D;D
PROVEAN
Benign
-1.3
N;N;N;N;.;N
REVEL
Benign
0.27
Sift
Pathogenic
0.0
D;D;D;D;.;D
Sift4G
Uncertain
0.029
D;D;D;D;D;D
Polyphen
0.46
P;P;P;D;P;D
Vest4
0.82
MutPred
0.87
Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);
MVP
0.87
ClinPred
0.99
D
GERP RS
5.4
Varity_R
0.83
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.33
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.33
Position offset: -22

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-66031251; COSMIC: COSV60764422; API