chr9-128222504-G-A

Position:

• chr9-128222504-G-A

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2 PM5 PP2 PP3_Strong PP5_Moderate

The NM_004408.4(DNM1):​c.1036G>A​(p.Gly346Ser) variant causes a missense 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. 12/20 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G346D) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNM1 NM_004408.4 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 10.0

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 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr9-128222505-G-A is described in Lovd as [Likely_pathogenic].
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DNM1. . Gene score misZ 5.1795 (greater than the threshold 3.09). Trascript score misZ 5.021 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy, 31, undetermined early-onset epileptic encephalopathy, developmental and epileptic encephalopathy 31B, developmental and epileptic encephalopathy, Lennox-Gastaut syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.947
• PP5: Variant 9-128222504-G-A is Pathogenic according to our data. Variant chr9-128222504-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 520433.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNM1	NM_004408.4	c.1036G>A	p.Gly346Ser	missense_variant	8/22	ENST00000372923.8	NP_004399.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNM1	ENST00000372923.8	c.1036G>A	p.Gly346Ser	missense_variant	8/22	1	NM_004408.4	ENSP00000362014.4
DNM1	ENST00000634267.2	c.1036G>A	p.Gly346Ser	missense_variant	8/22	5		ENSP00000489096.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Developmental and epileptic encephalopathy, 31A Pathogenic:1

Pathogenic, criteria provided, single submitter

research

Center For Human Genetics And Laboratory Diagnostics, Dr. Klein, Dr. Rost And Colleagues

Mar 07, 2018

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.90	D;.;.;.;.;.;T;.;.
Eigen	Pathogenic	0.96
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D;.;.;D;D;D;D;D;D
M_CAP	Pathogenic	0.42	D
MetaRNN	Pathogenic	0.95	D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	0.97	D
MutationAssessor	Pathogenic	3.7	H;H;H;H;.;H;.;H;.
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-5.2	D;D;D;D;.;D;.;.;.
REVEL	Pathogenic	0.83
Sift	Uncertain	0.0010	D;D;D;D;.;D;.;.;.
Sift4G	Uncertain	0.012	D;D;D;D;D;D;D;D;D
Polyphen		1.0	D;.;D;.;.;D;.;D;.
Vest4		0.84
MutPred		0.85		Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);Gain of phosphorylation at G346 (P = 0.0207);
MVP		0.92
MPC		2.4
ClinPred		1.0	D
GERP RS		5.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7
Varity_R		0.96
gMVP		0.94

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs1554774575; hg19: chr9-130984783;