3-179372984-G-A

Variant names:

• chr3-179372984-G-A
• rs2111534
• NM_033540.3:c.976-2236G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_033540.3(MFN1):​c.976-2236G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.52 in 151,826 control chromosomes in the GnomAD database, including 22,016 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.52 (22016 hom., cov: 31)
• Consequence: MFN1 NM_033540.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.311
• Publications: 14 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.723 is higher than 0.05.

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MFN1	NM_033540.3	MANE Select	c.976-2236G>A		intron	N/A	NP_284941.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MFN1	ENST00000471841.6	TSL:1 MANE Select	c.976-2236G>A		intron	N/A	ENSP00000420617.1
	MFN1	ENST00000263969.9	TSL:1	c.976-2236G>A		intron	N/A	ENSP00000263969.5
	MFN1	ENST00000474903.1	TSL:1	c.565-2236G>A		intron	N/A	ENSP00000419926.1

Frequencies

GnomAD3 genomes AF: 0.520 AC: 78870 AN: 151710 Hom.: 21980 Cov.: 31

Gnomad AFR AF: 0.730

Gnomad AMI AF: 0.390

Gnomad AMR AF: 0.542

Gnomad ASJ AF: 0.403

Gnomad EAS AF: 0.295

Gnomad SAS AF: 0.486

Gnomad FIN AF: 0.503

Gnomad MID AF: 0.484

Gnomad NFE AF: 0.418

Gnomad OTH AF: 0.487

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.520 AC: 78949 AN: 151826 Hom.: 22016 Cov.: 31 AF XY: 0.526 AC XY: 39001 AN XY: 74192

African (AFR) AF: 0.730 AC: 30243 AN: 41436

American (AMR) AF: 0.541 AC: 8257 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.403 AC: 1396 AN: 3468

East Asian (EAS) AF: 0.295 AC: 1524 AN: 5158

South Asian (SAS) AF: 0.484 AC: 2332 AN: 4814

European-Finnish (FIN) AF: 0.503 AC: 5282 AN: 10508

Middle Eastern (MID) AF: 0.486 AC: 142 AN: 292

European-Non Finnish (NFE) AF: 0.418 AC: 28395 AN: 67878

Other (OTH) AF: 0.485 AC: 1022 AN: 2108

Alfa AF: 0.452 Hom.: 19686

Bravo AF: 0.529

Asia WGS AF: 0.442 AC: 1535 AN: 3470

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.11
DANN	Benign	0.58
PhyloP100		-0.31
Mutation Taster		=100/0	polymorphism (auto)

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: rs2111534; hg19: chr3-179090772;