9-128218658-G-C

Variant names:

• chr9-128218658-G-C
• rs2229917
• NM_004408.4:c.312G>C
• DNM1 p.Glu104Asp

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_004408.4(DNM1):​c.312G>C​(p.Glu104Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E104E) has been classified as Benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: DNM1 NM_004408.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.62
• Publications: 9 publications found

Genes affected

DNM1 (HGNC:2972): (dynamin 1) This gene encodes a member of the dynamin subfamily of GTP-binding proteins. The encoded protein possesses unique mechanochemical properties used to tubulate and sever membranes, and is involved in clathrin-mediated endocytosis and other vesicular trafficking processes. Actin and other cytoskeletal proteins act as binding partners for the encoded protein, which can also self-assemble leading to stimulation of GTPase activity. More than sixty highly conserved copies of the 3' region of this gene are found elsewhere in the genome, particularly on chromosomes Y and 15. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

DNM1 Gene-Disease associations (from GenCC):

• genetic developmental and epileptic encephalopathy

  Inheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: ClinGen
• developmental and epileptic encephalopathy, 31A

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• developmental and epileptic encephalopathy, 31B

  Inheritance: AR, AD Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Lennox-Gastaut syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• undetermined early-onset epileptic encephalopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.848

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004408.4. 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
	DNM1	NM_004408.4	MANE Select	c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	NP_004399.2	Q05193-1
	DNM1	NM_001374269.1		c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	NP_001361198.1	A0A994J7J4
	DNM1	NM_001288739.2		c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	NP_001275668.1	Q05193-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNM1	ENST00000372923.8	TSL:1 MANE Select	c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	ENSP00000362014.4	Q05193-1
	DNM1	ENST00000486160.3	TSL:1	c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	ENSP00000420045.1	Q05193-2
	DNM1	ENST00000634267.2	TSL:5	c.312G>C	p.Glu104Asp	missense	Exon 3 of 22	ENSP00000489096.1	A0A0U1RQP1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 536

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.86	D
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.30
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Pathogenic	0.42	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Pathogenic	0.92	D
MutationAssessor	Uncertain	2.2	M
PhyloP100		2.6
PrimateAI	Pathogenic	0.81	D
PROVEAN	Uncertain	-2.8	D
REVEL	Pathogenic	0.83
Sift	Uncertain	0.0060	D
Sift4G	Uncertain	0.037	D
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.66
gMVP		0.93
Mutation Taster		=12/88	disease causing

Splicing

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: rs2229917;

hg19: chr9-130980937;