Genetic Variant DNMBP:c.2261-21460G>A (chr10-99930606-C-T) – ACMG Classification: Pathogenic (10 pts)

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PM2

The NM_001318326.2(DNMBP):c.158G>A(p.Trp53*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000569 in 702,846 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 (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000054 ( 0 hom. )

Consequence

DNMBP
NM_001318326.2 stop_gained

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.692

Publications

0 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001318326.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DNMBP	NM_015221.4	MANE Select	c.2261-21460G>A		intron	N/A	NP_056036.1	Q6XZF7-1
DNMBP	NM_001318326.2		c.158G>A	p.Trp53*	stop_gained	Exon 1 of 14	NP_001305255.1	A0A1B0GTX1
DNMBP	NM_001441287.1		c.2261-21460G>A		intron	N/A	NP_001428216.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DNMBP	ENST00000324109.9	TSL:1 MANE Select	c.2261-21460G>A		intron	N/A	ENSP00000315659.4	Q6XZF7-1
DNMBP	ENST00000636706.1	TSL:2	c.158G>A	p.Trp53*	stop_gained	Exon 1 of 14	ENSP00000489875.1	A0A1B0GTX1
DNMBP	ENST00000856964.1		c.2261-21460G>A		intron	N/A	ENSP00000527023.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

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

GnomAD2 exomes

AF:

0.0000149

AC:

AN:

134496

AF XY:

0.0000137

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000379

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000545

AC:

AN:

550676

Hom.:

Cov.:

AF XY:

0.00000671

AC XY:

AN XY:

298114

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

15804

American (AMR)

AF:

0.00

AC:

AN:

34712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20022

East Asian (EAS)

AF:

0.00

AC:

AN:

32104

South Asian (SAS)

AF:

0.00

AC:

AN:

62766

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4076

European-Non Finnish (NFE)

AF:

0.00000946

AC:

AN:

316970

Other (OTH)

AF:

0.00

AC:

AN:

30608

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74340

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41432

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

DNMBP-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.16

(source)

DANN

Benign

0.74

FATHMM_MKL

Benign

0.032

PhyloP100

-0.69

GERP RS

-3.5

PromoterAI

-0.047

Neutral

(source)

Mutation Taster

=299/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over