chr16-89919591-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_002386.4(MC1R):​c.333G>A​(p.Ala111=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,609,764 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00019 ( 2 hom. )

Consequence

MC1R
NM_002386.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.35
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 Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 16-89919591-G-A is Benign according to our data. Variant chr16-89919591-G-A is described in ClinVar as [Benign]. Clinvar id is 413855.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr16-89919591-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-2.35 with no splicing effect.
BS2
High AC in GnomAd4 at 43 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MC1RNM_002386.4 linkuse as main transcriptc.333G>A p.Ala111= synonymous_variant 1/1 ENST00000555147.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MC1RENST00000555147.2 linkuse as main transcriptc.333G>A p.Ala111= synonymous_variant 1/1 NM_002386.4 P1
MC1RENST00000555427.1 linkuse as main transcriptc.333G>A p.Ala111= synonymous_variant 3/45
MC1RENST00000639847.1 linkuse as main transcriptc.333G>A p.Ala111= synonymous_variant 3/35 P1

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152138
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00190
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000801
AC:
197
AN:
245818
Hom.:
3
AF XY:
0.000590
AC XY:
79
AN XY:
133858
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00528
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000445
Gnomad OTH exome
AF:
0.000332
GnomAD4 exome
AF:
0.000194
AC:
283
AN:
1457508
Hom.:
2
Cov.:
33
AF XY:
0.000172
AC XY:
125
AN XY:
725244
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00454
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000209
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000513
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000282
AC:
43
AN:
152256
Hom.:
0
Cov.:
33
AF XY:
0.000296
AC XY:
22
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00189
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000313
Hom.:
0
Bravo
AF:
0.000620
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Melanoma, cutaneous malignant, susceptibility to, 5 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 06, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.11
DANN
Benign
0.64

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: rs368745976; hg19: chr16-89985999; API