19-10718325-A-G

Position:

• chr19-10718325-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001005361.3(DNM2):​c.83A>G​(p.His28Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H28L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DNM2 NM_001005361.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.91

Genes affected

DNM2 (HGNC:2974): (dynamin 2) Dynamins represent one of the subfamilies of GTP-binding proteins. These proteins share considerable sequence similarity over the N-terminal portion of the molecule, which contains the GTPase domain. Dynamins are associated with microtubules. They have been implicated in cell processes such as endocytosis and cell motility, and in alterations of the membrane that accompany certain activities such as bone resorption by osteoclasts. Dynamins bind many proteins that bind actin and other cytoskeletal proteins. Dynamins can also self-assemble, a process that stimulates GTPase activity. Five alternatively spliced transcripts encoding different proteins have been described. Additional alternatively spliced transcripts may exist, but their full-length nature has not been determined. [provided by RefSeq, Jun 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DNM2. . Gene score misZ 3.4829 (greater than the threshold 3.09). Trascript score misZ 4.8575 (greater than threshold 3.09). GenCC has associacion of gene with fetal akinesia-cerebral and retinal hemorrhage syndrome, Charcot-Marie-Tooth disease dominant intermediate B, hereditary spastic paraplegia, Charcot-Marie-Tooth disease, autosomal dominant centronuclear myopathy, autosomal dominant Charcot-Marie-Tooth disease type 2M.
• BP4: Computational evidence support a benign effect (MetaRNN=0.23573771).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DNM2	NM_001005361.3	c.83A>G	p.His28Arg	missense_variant	1/21	ENST00000389253.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNM2	ENST00000389253.9	c.83A>G	p.His28Arg	missense_variant	1/21	5	NM_001005361.3	A1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1361950 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 674130

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.081	D
BayesDel_noAF	Benign	-0.12
CADD	Uncertain	25
DANN	Benign	0.96
DEOGEN2	Uncertain	0.43	.;.;.;T;.
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.058
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.92	D;D;D;D;D
M_CAP	Pathogenic	0.96	D
MetaRNN	Benign	0.24	T;T;T;T;T
MetaSVM	Uncertain	0.067	D
MutationAssessor	Benign	-0.55	N;N;N;N;N
MutationTaster	Benign	0.97	D;D;D;D;D;D
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	-0.43	.;N;N;N;N
REVEL	Uncertain	0.33
Sift	Benign	0.47	.;T;T;T;T
Sift4G	Benign	0.21	T;T;T;T;T
Polyphen		0.13, 0.017	.;B;.;B;.
Vest4		0.16
MutPred		0.27		Gain of solvent accessibility (P = 0.0837);Gain of solvent accessibility (P = 0.0837);Gain of solvent accessibility (P = 0.0837);Gain of solvent accessibility (P = 0.0837);Gain of solvent accessibility (P = 0.0837);
MVP		0.77
MPC		1.3
ClinPred		0.77	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.31
gMVP		0.31

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

Publications

LitVar

Other links and lift over

dbSNP: rs774962668; hg19: chr19-10829001;