rs202166652

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_198177.3(MITF):​c.53A>G​(p.Tyr18Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000214 in 1,613,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

MITF
NM_198177.3 missense

Scores

16

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 0.830

Publications

3 publications found
Variant links:
Genes affected
MITF (HGNC:7105): (melanocyte inducing transcription factor) The protein encoded by this gene is a transcription factor that contains both basic helix-loop-helix and leucine zipper structural features. The encoded protein regulates melanocyte development and is responsible for pigment cell-specific transcription of the melanogenesis enzyme genes. Heterozygous mutations in the this gene cause auditory-pigmentary syndromes, such as Waardenburg syndrome type 2 and Tietz syndrome. [provided by RefSeq, Aug 2017]
MITF Gene-Disease associations (from GenCC):
  • Tietz syndrome
    Inheritance: AD Classification: DEFINITIVE, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet
  • Waardenburg syndrome type 2
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Waardenburg syndrome type 2A
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • melanoma, cutaneous malignant, susceptibility to, 8
    Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • coloboma, osteopetrosis, microphthalmia, macrocephaly, albinism, and deafness
    Inheritance: AR Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • renal cell carcinoma
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • Waardenburg syndrome
    Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics
  • Waardenburg-Shah syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.046447217).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000125 (19/152194) while in subpopulation NFE AF = 0.000191 (13/68032). AF 95% confidence interval is 0.000112. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198177.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MITF
NM_001354604.2
MANE Select
c.105-12791A>G
intron
N/ANP_001341533.1O75030-1
MITF
NM_198177.3
c.53A>Gp.Tyr18Cys
missense
Exon 1 of 10NP_937820.1O75030-8
MITF
NM_001354605.2
c.105-12794A>G
intron
N/ANP_001341534.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MITF
ENST00000352241.9
TSL:1 MANE Select
c.105-12791A>G
intron
N/AENSP00000295600.8O75030-1
MITF
ENST00000314589.11
TSL:2
c.53A>Gp.Tyr18Cys
missense
Exon 1 of 10ENSP00000324443.5O75030-8
MITF
ENST00000693549.1
c.53A>Gp.Tyr18Cys
missense
Exon 1 of 10ENSP00000509358.1A0A8I5KRZ6

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
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:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000104
AC:
26
AN:
248948
AF XY:
0.0000963
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000278
Gnomad NFE exome
AF:
0.000159
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000224
AC:
327
AN:
1461506
Hom.:
0
Cov.:
31
AF XY:
0.000227
AC XY:
165
AN XY:
727010
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33464
American (AMR)
AF:
0.0000224
AC:
1
AN:
44692
Ashkenazi Jewish (ASJ)
AF:
0.0000765
AC:
2
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86202
European-Finnish (FIN)
AF:
0.000243
AC:
13
AN:
53392
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000272
AC:
302
AN:
1111798
Other (OTH)
AF:
0.000149
AC:
9
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
17
35
52
70
87
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152194
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000163
Hom.:
0
Bravo
AF:
0.000166
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.000272
AC:
1
ESP6500EA
AF:
0.000122
AC:
1
ExAC
AF:
0.0000994
AC:
12
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
MITF-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
15
DANN
Benign
0.91
DEOGEN2
Benign
0.22
T
Eigen
Benign
-0.66
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.40
N
LIST_S2
Benign
0.56
T
M_CAP
Benign
0.0098
T
MetaRNN
Benign
0.046
T
MetaSVM
Benign
-1.0
T
PhyloP100
0.83
PROVEAN
Benign
-0.010
N
REVEL
Benign
0.040
Sift
Benign
0.18
T
Sift4G
Benign
0.18
T
Polyphen
0.0
B
Vest4
0.26
MVP
0.12
ClinPred
0.030
T
GERP RS
0.34
PromoterAI
-0.010
Neutral
Mutation Taster
=92/8
polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs202166652; hg19: chr3-69915494; API