19-10829241-C-A

Variant names:

• chr19-10829241-C-A
• rs754691182
• NM_001005361.3:c.2264C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001005361.3(DNM2):​c.2264C>A​(p.Thr755Asn) 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 benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T755I) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DNM2 NM_001005361.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.56
• Publications: 2 publications found

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]

MIR6793 (HGNC:50251): (microRNA 6793) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20644867).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001005361.3. 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
	DNM2	NM_001005361.3	MANE Select	c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	NP_001005361.1
	DNM2	NM_001005360.3		c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	NP_001005360.1
	DNM2	NM_001190716.2		c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	NP_001177645.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNM2	ENST00000389253.9	TSL:5 MANE Select	c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	ENSP00000373905.4
	DNM2	ENST00000355667.11	TSL:1	c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	ENSP00000347890.6
	DNM2	ENST00000585892.5	TSL:1	c.2264C>A	p.Thr755Asn	missense	Exon 19 of 21	ENSP00000468734.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Charcot-Marie-Tooth disease dominant intermediate B (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.32
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.13	D
MetaRNN	Benign	0.21	T
MetaSVM	Uncertain	0.42	D
MutationAssessor	Uncertain	2.0	M
PhyloP100		1.6
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	0.42	N
REVEL	Benign	0.28
Sift	Benign	0.11	T
Sift4G	Benign	0.12	T
Polyphen		0.84	P
Vest4		0.23
MutPred		0.28		Gain of relative solvent accessibility (P = 0.0215)
MVP		0.77
MPC		0.35
ClinPred		0.43	T
GERP RS		4.7
PromoterAI		0.075	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.16
gMVP		0.23
Mutation Taster		=87/13	polymorphism

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: rs754691182; hg19: chr19-10939917;