10-99955546-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015221.4(DNMBP):c.1928G>A(p.Arg643His) variant causes a missense change. The variant allele was found at a frequency of 0.0000357 in 1,598,388 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R643C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

DNMBP
NM_015221.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02

Variant links:

Genes affected

DNMBP (HGNC:30373): (dynamin binding protein) This gene encodes a protein belonging to the guanine nucleotide exchange factor family, and which regulates the configuration of cell junctions. It contains multiple binding sites for dynamin and thus links dynamin to actin regulatory proteins. Polymorphisms in this gene have been linked to Alzheimer's disease in some populations, though there are conflicting reports of such linkages in other populations. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

DNMBP links:

DNMBP-AS1 (HGNC:20431): (DNMBP antisense RNA 1)

DNMBP-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06461653).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNMBP	NM_015221.4 link	c.1928G>A	p.Arg643His	missense_variant	Exon 4 of 17	ENST00000324109.9	NP_056036.1	Q6XZF7-1
DNMBP	XM_011539559.3 link	c.1928G>A	p.Arg643His	missense_variant	Exon 5 of 18		XP_011537861.1	Q6XZF7-1
DNMBP	XM_047424910.1 link	c.1928G>A	p.Arg643His	missense_variant	Exon 5 of 18		XP_047280866.1
DNMBP-AS1	NR_024130.3 link	n.177-128C>T		intron_variant	Intron 2 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNMBP	ENST00000324109.9 link	c.1928G>A	p.Arg643His	missense_variant	Exon 4 of 17	1	NM_015221.4	ENSP00000315659.4	Q6XZF7-1
DNMBP-AS1	ENST00000434409.2 link	n.173-128C>T		intron_variant	Intron 2 of 4	2
DNMBP-AS1	ENST00000661150.1 link	n.177-1243C>T		intron_variant	Intron 2 of 2
DNMBP-AS1	ENST00000661385.1 link	n.223-936C>T		intron_variant	Intron 2 of 3

Frequencies

GnomAD3 genomes

AF:

0.0000855

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000965

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000159

AC:

AN:

238770

Hom.:

AF XY:

0.000163

AC XY:

AN XY:

129154

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000314

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00145

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000352

GnomAD4 exome

AF:

0.0000304

AC:

AN:

1446160

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

718136

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000263

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000657

Gnomad4 SAS exome

AF:

0.0000119

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000272

Gnomad4 OTH exome

AF:

0.0000504

GnomAD4 genome

AF:

0.0000854

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000967

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000121

ExAC

AF:

0.000115

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1928G>A (p.R643H) alteration is located in exon 4 (coding exon 3) of the DNMBP gene. This alteration results from a G to A substitution at nucleotide position 1928, causing the arginine (R) at amino acid position 643 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.68

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.25

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.17

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.048

MetaRNN

Benign

0.065

MetaSVM

Benign

-0.79

MutationAssessor

Uncertain

2.9

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-2.2

REVEL

Benign

0.23

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.32

MutPred

0.16

Loss of methylation at R643 (P = 0.0469);

MVP

0.87

MPC

0.70

ClinPred

0.34

GERP RS

6.0

Varity_R

0.23

gMVP

0.55

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

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