rs3212364

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002386.4(MC1R):​c.318G>A​(p.Leu106Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.00198 in 1,611,086 control chromosomes in the GnomAD database, including 63 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. L106L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.011 ( 30 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 33 hom. )

Consequence

MC1R
NM_002386.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 4.04

Publications

9 publications found
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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant 16-89919576-G-A is Benign according to our data. Variant chr16-89919576-G-A is described in ClinVar as Benign. ClinVar VariationId is 321425.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0106 (1617/152340) while in subpopulation AFR AF = 0.0369 (1534/41582). AF 95% confidence interval is 0.0354. There are 30 homozygotes in GnomAd4. There are 784 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 1617 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MC1RNM_002386.4 linkc.318G>A p.Leu106Leu synonymous_variant Exon 1 of 1 ENST00000555147.2 NP_002377.4 Q01726Q1JUL4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MC1RENST00000555147.2 linkc.318G>A p.Leu106Leu synonymous_variant Exon 1 of 1 6 NM_002386.4 ENSP00000451605.1 Q01726
ENSG00000198211ENST00000556922.1 linkc.318G>A p.Leu106Leu synonymous_variant Exon 1 of 5 2 ENSP00000451560.1 A0A0B4J269
MC1RENST00000555427.1 linkc.318G>A p.Leu106Leu synonymous_variant Exon 3 of 4 5 ENSP00000451760.1 G3V4F0
MC1RENST00000639847.1 linkc.318G>A p.Leu106Leu synonymous_variant Exon 3 of 3 5 ENSP00000492011.1 Q01726

Frequencies

GnomAD3 genomes
AF:
0.0106
AC:
1616
AN:
152222
Hom.:
30
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0370
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00386
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00669
GnomAD2 exomes
AF:
0.00274
AC:
675
AN:
246732
AF XY:
0.00201
show subpopulations
Gnomad AFR exome
AF:
0.0403
Gnomad AMR exome
AF:
0.00107
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000891
Gnomad OTH exome
AF:
0.000829
GnomAD4 exome
AF:
0.00108
AC:
1573
AN:
1458746
Hom.:
33
Cov.:
33
AF XY:
0.000909
AC XY:
660
AN XY:
725788
show subpopulations
African (AFR)
AF:
0.0398
AC:
1332
AN:
33480
American (AMR)
AF:
0.00145
AC:
65
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50634
Middle Eastern (MID)
AF:
0.00173
AC:
10
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111740
Other (OTH)
AF:
0.00242
AC:
146
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
105
211
316
422
527
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
42
84
126
168
210
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0106
AC:
1617
AN:
152340
Hom.:
30
Cov.:
33
AF XY:
0.0105
AC XY:
784
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.0369
AC:
1534
AN:
41582
American (AMR)
AF:
0.00385
AC:
59
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
68024
Other (OTH)
AF:
0.00662
AC:
14
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
73
146
219
292
365
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00588
Hom.:
13
Bravo
AF:
0.0124
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Melanoma, cutaneous malignant, susceptibility to, 5 Benign:2
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Dec 15, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
2.4
DANN
Benign
0.61
PhyloP100
4.0
PromoterAI
-0.0048
Neutral
Mutation Taster
=34/66
disease causing

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

Other links and lift over

dbSNP: rs3212364; hg19: chr16-89985984; API