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rs201429598

Variant summary

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

The NM_002386.4(MC1R):ā€‹c.399C>Gā€‹(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: š‘“ 0.0000066 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

MC1R
NM_002386.4 missense

Scores

2
8
6

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]

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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
MC1RNM_002386.4 linkuse as main transcriptc.399C>G p.Cys133Trp missense_variant 1/1 ENST00000555147.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MC1RENST00000555147.2 linkuse as main transcriptc.399C>G p.Cys133Trp missense_variant 1/1 NM_002386.4 P1
MC1RENST00000555427.1 linkuse as main transcriptc.399C>G p.Cys133Trp missense_variant 3/45
MC1RENST00000639847.1 linkuse as main transcriptc.399C>G p.Cys133Trp missense_variant 3/35 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
33
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:
3
AN:
1454272
Hom.:
0
Cov.:
33
AF XY:
0.00000276
AC XY:
2
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:
1
AN:
152236
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
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
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
23
DANN
Uncertain
0.99
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Benign
0.75
D
LIST_S2
Uncertain
0.92
D;.;D;D
M_CAP
Benign
0.036
D
MetaRNN
Uncertain
0.66
D;D;D;D
MetaSVM
Benign
-0.75
T
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
D
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.

Other links and lift over

dbSNP: rs201429598; hg19: chr16-89986065; API