Genetic Variant NM_004408.4:c.-17C>A (chr9-128203454-C-A) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_004408.4(DNM1):c.-17C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000945 in 1,461,992 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0050 ( 10 hom., cov: 31)

Exomes 𝑓: 0.00048 ( 6 hom. )

Consequence

DNM1
NM_004408.4 5_prime_UTR

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.706

Variant links:

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 links:

CIZ1 (HGNC:16744): (CDKN1A interacting zinc finger protein 1) The protein encoded by this gene is a zinc finger DNA binding protein that interacts with CIP1, part of a complex with cyclin E. The encoded protein may regulate the cellular localization of CIP1. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

CIZ1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 9-128203454-C-A is Benign according to our data. Variant chr9-128203454-C-A is described in ClinVar as [Benign]. Clinvar id is 384406.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00498 (755/151586) while in subpopulation AFR AF= 0.0174 (720/41494). AF 95% confidence interval is 0.0163. There are 10 homozygotes in gnomad4. There are 348 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 10 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNM1	NM_004408.4 link	c.-17C>A		5_prime_UTR_variant	Exon 1 of 22	ENST00000372923.8	NP_004399.2	Q05193-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNM1	ENST00000372923 link	c.-17C>A		5_prime_UTR_variant	Exon 1 of 22	1	NM_004408.4	ENSP00000362014.4		Q05193-1
DNM1	ENST00000634267.2 link	c.-17C>A		upstream_gene_variant		5		ENSP00000489096.1		A0A0U1RQP1

Frequencies

GnomAD3 genomes

AF:

0.00498

AC:

755

AN:

151478

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0174

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00184

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00336

GnomAD3 exomes

AF:

0.000546

AC:

AN:

91504

Hom.:

AF XY:

0.000417

AC XY:

AN XY:

52706

show subpopulations

Gnomad AFR exome

AF:

0.0192

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000118

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000276

Gnomad OTH exome

AF:

0.000416

GnomAD4 exome

AF:

0.000478

AC:

626

AN:

1310406

Hom.:

Cov.:

AF XY:

0.000435

AC XY:

281

AN XY:

645962

show subpopulations

Gnomad4 AFR exome

AF:

0.0199

Gnomad4 AMR exome

AF:

0.000845

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000833

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000386

Gnomad4 OTH exome

AF:

0.00116

GnomAD4 genome

AF:

0.00498

AC:

755

AN:

151586

Hom.:

Cov.:

AF XY:

0.00470

AC XY:

348

AN XY:

74062

show subpopulations

Gnomad4 AFR

AF:

0.0174

Gnomad4 AMR

AF:

0.00177

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00333

Alfa

AF:

0.00465

Hom.:

Bravo

AF:

0.00592

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Mar 29, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

DANN

Benign

0.91

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over