3-179377356-A-G

Variant names:

• chr3-179377356-A-G
• rs200837854
• NM_033540.3:c.1237A>G
• MFN1 p.Met413Val

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_033540.3(MFN1):​c.1237A>G​(p.Met413Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,608,020 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M413I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: MFN1 NM_033540.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.76
• Publications: 0 publications found

Genes affected

MFN1 (HGNC:18262): (mitofusin 1) The protein encoded by this gene is a mediator of mitochondrial fusion. This protein and mitofusin 2 are homologs of the Drosophila protein fuzzy onion (Fzo). They are mitochondrial membrane proteins that interact with each other to facilitate mitochondrial targeting. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033540.3. 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
	MFN1	NM_033540.3	MANE Select	c.1237A>G	p.Met413Val	missense	Exon 12 of 18	NP_284941.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MFN1	ENST00000471841.6	TSL:1 MANE Select	c.1237A>G	p.Met413Val	missense	Exon 12 of 18	ENSP00000420617.1	Q8IWA4-1
	MFN1	ENST00000263969.9	TSL:1	c.1237A>G	p.Met413Val	missense	Exon 11 of 17	ENSP00000263969.5	Q8IWA4-1
	MFN1	ENST00000474903.1	TSL:1	c.826A>G	p.Met276Val	missense	Exon 8 of 12	ENSP00000419926.1	H7C5H5

Frequencies

GnomAD3 genomes AF: 0.0000328 AC: 5 AN: 152246 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000482

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: 0.000282

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000320 AC: 8 AN: 249794 AF XY: 0.0000296

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000877

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000925

Gnomad NFE exome AF: 0.00000883

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000893 AC: 13 AN: 1455656 Hom.: 0 Cov.: 30 AF XY: 0.00000967 AC XY: 7 AN XY: 723916

African (AFR) AF: 0.00 AC: 0 AN: 33310

American (AMR) AF: 0.000113 AC: 5 AN: 44362

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26056

East Asian (EAS) AF: 0.00 AC: 0 AN: 39544

South Asian (SAS) AF: 0.0000118 AC: 1 AN: 84782

European-Finnish (FIN) AF: 0.0000563 AC: 3 AN: 53304

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4616

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1109576

Other (OTH) AF: 0.0000166 AC: 1 AN: 60106

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152364 Hom.: 0 Cov.: 32 AF XY: 0.0000671 AC XY: 5 AN XY: 74506

African (AFR) AF: 0.0000481 AC: 2 AN: 41586

American (AMR) AF: 0.00 AC: 0 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.000282 AC: 3 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000151

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Pathogenic	0.23
CADD	Benign	21
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.63	D
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.83	T
M_CAP	Uncertain	0.099	D
MetaRNN	Uncertain	0.63	D
MetaSVM	Uncertain	0.60	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		5.8
PrimateAI	Uncertain	0.53	T
PROVEAN	Uncertain	-2.5	D
REVEL	Pathogenic	0.76
Sift	Uncertain	0.017	D
Sift4G	Uncertain	0.015	D
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.34
gMVP		0.67
Mutation Taster		=33/67	disease causing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs200837854; hg19: chr3-179095144;