chr12-32679392-A-G

Variant names:

• chr12-32679392-A-G
• rs1592548168
• NM_001278464.2:c.29A>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP2

The NM_012062.5(DNM1L):​c.29A>G​(p.Lys10Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,522 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: DNM1L NM_012062.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.73
• Publications: 0 publications found

Genes affected

DNM1L (HGNC:2973): (dynamin 1 like) This gene encodes a member of the dynamin superfamily of GTPases. The encoded protein mediates mitochondrial and peroxisomal division, and is involved in developmentally regulated apoptosis and programmed necrosis. Dysfunction of this gene is implicated in several neurological disorders, including Alzheimer's disease. Mutations in this gene are associated with the autosomal dominant disorder, encephalopathy, lethal, due to defective mitochondrial and peroxisomal fission (EMPF). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jun 2013]

DNM1L Gene-Disease associations (from GenCC):

• encephalopathy due to mitochondrial and peroxisomal fission defect

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• optic atrophy 5

  Inheritance: AD Classification: STRONG Submitted by: G2P
• encephalopathy, lethal, due to defective mitochondrial peroxisomal fission 1

  Inheritance: AR, AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Orphanet
• autosomal dominant optic atrophy, classic form

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Leigh syndrome

  Inheritance: AR, AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the DNM1L gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 31 curated pathogenic missense variants (we use a threshold of 10). The gene has 9 curated benign missense variants. Gene score misZ: 3.8282 (above the threshold of 3.09). Trascript score misZ: 5.3198 (above the threshold of 3.09). GenCC associations: The gene is linked to encephalopathy, lethal, due to defective mitochondrial peroxisomal fission 1, optic atrophy 5, autosomal dominant optic atrophy, classic form, Leigh syndrome, encephalopathy due to mitochondrial and peroxisomal fission defect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012062.5. 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
	DNM1L	NM_001278464.2	MANE Plus Clinical	c.29A>G	p.Lys10Arg	missense	Exon 1 of 21	NP_001265393.1	O00429-6
	DNM1L	NM_012062.5	MANE Select	c.29A>G	p.Lys10Arg	missense	Exon 1 of 20	NP_036192.2	O00429-1
	DNM1L	NM_001278465.2		c.29A>G	p.Lys10Arg	missense	Exon 1 of 20	NP_001265394.1	O00429-8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNM1L	ENST00000553257.6	TSL:2 MANE Plus Clinical	c.29A>G	p.Lys10Arg	missense	Exon 1 of 21	ENSP00000449089.1	O00429-6
	DNM1L	ENST00000549701.6	TSL:1 MANE Select	c.29A>G	p.Lys10Arg	missense	Exon 1 of 20	ENSP00000450399.1	O00429-1
	DNM1L	ENST00000381000.8	TSL:1	c.29A>G	p.Lys10Arg	missense	Exon 1 of 20	ENSP00000370388.4	O00429-8

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461522 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727096

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53278

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111836

Other (OTH) AF: 0.0000166 AC: 1 AN: 60372

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000283 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.51	D
Eigen	Benign	-0.11
Eigen_PC	Benign	0.031
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.95	D
M_CAP	Pathogenic	0.38	D
MetaRNN	Uncertain	0.51	D
MetaSVM	Uncertain	0.17	D
MutationAssessor	Benign	1.5	L
PhyloP100		8.7
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-2.1	N
REVEL	Uncertain	0.38
Sift	Benign	0.094	T
Sift4G	Benign	0.15	T
Polyphen		0.12	B
Vest4		0.68
MutPred		0.41		Gain of catalytic residue at I5 (P = 7e-04)
MVP		0.92
MPC		0.93
ClinPred		0.95	D
GERP RS		3.5
PromoterAI		-0.037	Neutral
Varity_R		0.34
gMVP		0.74
Mutation Taster		=44/56	disease causing

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

Other links and lift over

dbSNP: rs1592548168; hg19: chr12-32832326;