NM_001354604.2:c.704C>G

Variant names:

• chr3-69941273-C-G
• rs876657700
• NM_001354604.2:c.704C>G

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001354604.2(MITF):​c.704C>G​(p.Ser235*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MITF NM_001354604.2 stop_gained
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 7.91
• Publications: 1 publications found

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

ACMG classification

Our verdict: Pathogenic. The variant received 18 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 3-69941273-C-G is Pathogenic according to our data. Variant chr3-69941273-C-G is described in ClinVar as Pathogenic. ClinVar VariationId is 228364.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001354604.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MITF	NM_001354604.2	MANE Select	c.704C>G	p.Ser235*	stop_gained	Exon 5 of 10	NP_001341533.1	O75030-1
	MITF	NM_000248.4	MANE Plus Clinical	c.383C>G	p.Ser128*	stop_gained	Exon 4 of 9	NP_000239.1	O75030-9
	MITF	NM_001354605.2		c.701C>G	p.Ser234*	stop_gained	Exon 5 of 10	NP_001341534.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MITF	ENST00000352241.9	TSL:1 MANE Select	c.704C>G	p.Ser235*	stop_gained	Exon 5 of 10	ENSP00000295600.8	O75030-1
	MITF	ENST00000394351.9	TSL:1 MANE Plus Clinical	c.383C>G	p.Ser128*	stop_gained	Exon 4 of 9	ENSP00000377880.3	O75030-9
	MITF	ENST00000314557.10	TSL:1	c.383C>G	p.Ser128*	stop_gained	Exon 4 of 9	ENSP00000324246.6	O75030-10

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
1	-	-	not provided (1)
1	-	-	Rare genetic deafness (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.60
CADD	Pathogenic	39
DANN	Uncertain	1.0
Eigen	Pathogenic	1.2
Eigen_PC	Pathogenic	1.1
FATHMM_MKL	Uncertain	0.95	D
PhyloP100		7.9
Vest4		0.97
GERP RS		5.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=0/200	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs876657700; hg19: chr3-69990424;