18-60372240-T-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_ModerateBP6BS2_Supporting

The NM_005912.3(MC4R):c.110A>T(p.Asp37Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000669 in 1,614,062 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

MC4R
NM_005912.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:5O:1

Conservation

PhyloP100: 4.10

Variant links:

Genes affected

MC4R (HGNC:6932): (melanocortin 4 receptor) The protein encoded by this gene is a membrane-bound receptor and member of the melanocortin receptor family. The encoded protein interacts with adrenocorticotropic and MSH hormones and is mediated by G proteins. This is an intronless gene. Defects in this gene are a cause of autosomal dominant obesity. [provided by RefSeq, Jan 2010]

MC4R links:

ENSG00000285681 (HGNC:):

ENSG00000285681 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14122966).

BP6

Variant 18-60372240-T-A is Benign according to our data. Variant chr18-60372240-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 14319.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=2, not_provided=1}. Variant chr18-60372240-T-A is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 18 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MC4R	NM_005912.3 link	c.110A>T	p.Asp37Val	missense_variant	Exon 1 of 1	ENST00000299766.5	NP_005903.2	P32245

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MC4R	ENST00000299766.5 link	c.110A>T	p.Asp37Val	missense_variant	Exon 1 of 1	6	NM_005912.3	ENSP00000299766.3	P32245
ENSG00000285681	ENST00000650201.1 link	n.113+42895T>A		intron_variant	Intron 1 of 3
ENSG00000285681	ENST00000658928.1 link	n.156+42895T>A		intron_variant	Intron 1 of 3

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152174

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:

0.000265

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000676

AC:

AN:

251354

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135834

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.000141

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000616

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.0000564

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

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:

0.0000755

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000118

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74340

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:

0.000265

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000100

Hom.:

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:5Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Obesity

Uncertain:2Benign:1Other:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Nov 22, 2017

Clinical Molecular Genetics Laboratory, Johns Hopkins All Children's Hospital

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

present with c.105C>A in two patients, phase not known -

Oct 02, 2015

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: not provided

Review Status: no classification provided

Collection Method: clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Uncertain:1Benign:2

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Dec 16, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 37 of the MC4R protein (p.Asp37Val). This variant is present in population databases (rs13447325, gnomAD 0.02%). This missense change has been observed in individual(s) with clinical features associated with MC4R-related obesity (PMID: 12970296). ClinVar contains an entry for this variant (Variation ID: 14319). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MC4R protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change does not substantially affect MC4R function (PMID: 16752916). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Clinical Genetics, Academic Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not specified

Benign:1

May 27, 2016

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

BODY MASS INDEX QUANTITATIVE TRAIT LOCUS 20

Benign:1

Jan 01, 2019

Institute of Human Genetics, University of Leipzig Medical Center

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.28

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.13

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.81

M_CAP

Benign

0.018

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.38

REVEL

Benign

0.062

Sift

Benign

0.088

Sift4G

Benign

0.25

Polyphen

0.0040

Vest4

0.29

MVP

0.67

MPC

0.015

ClinPred

0.064

GERP RS

4.4

Varity_R

0.10

gMVP

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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