Variant 16-89919657-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002386.4(MC1R):c.399C>G(p.Cys133Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,606,508 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. C133C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MC1R
NM_002386.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.24

Variant links:

Genes affected

MC1R (HGNC:6929): (melanocortin 1 receptor) This intronless gene encodes the receptor protein for melanocyte-stimulating hormone (MSH). The encoded protein, a seven pass transmembrane G protein coupled receptor, controls melanogenesis. Two types of melanin exist: red pheomelanin and black eumelanin. Gene mutations that lead to a loss in function are associated with increased pheomelanin production, which leads to lighter skin and hair color. Eumelanin is photoprotective but pheomelanin may contribute to UV-induced skin damage by generating free radicals upon UV radiation. Binding of MSH to its receptor activates the receptor and stimulates eumelanin synthesis. This receptor is a major determining factor in sun sensitivity and is a genetic risk factor for melanoma and non-melanoma skin cancer. Over 30 variant alleles have been identified which correlate with skin and hair color, providing evidence that this gene is an important component in determining normal human pigment variation. [provided by RefSeq, Jul 2008]

MC1R links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MC1R	NM_002386.4 linkuse as main transcript	c.399C>G	p.Cys133Trp	missense_variant	1/1	ENST00000555147.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
MC1R	ENST00000555147.2 linkuse as main transcript	c.399C>G	p.Cys133Trp	missense_variant	1/1		NM_002386.4	P1
MC1R	ENST00000555427.1 linkuse as main transcript	c.399C>G	p.Cys133Trp	missense_variant	3/4	5
MC1R	ENST00000639847.1 linkuse as main transcript	c.399C>G	p.Cys133Trp	missense_variant	3/3	5		P1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152236

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1454272

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

723770

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74368

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.063

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.45

.;T;T;.

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Benign

0.75

LIST_S2

Uncertain

0.92

D;.;D;D

M_CAP

Benign

0.036

MetaRNN

Uncertain

0.66

D;D;D;D

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.3

.;M;M;.

MutationTaster

Benign

1.0

D;D

PROVEAN

Pathogenic

-7.3

D;.;D;N

REVEL

Uncertain

0.33

Sift

Pathogenic

0.0

D;.;D;D

Sift4G

Uncertain

0.055

T;.;T;D

Polyphen

1.0

.;D;D;.

Vest4

0.44

MutPred

0.75

Loss of stability (P = 0.0652);Loss of stability (P = 0.0652);Loss of stability (P = 0.0652);Loss of stability (P = 0.0652);

MVP

0.81

MPC

0.13

ClinPred

0.99

GERP RS

4.8

Varity_R

0.78

gMVP

0.39

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over