Genetic Variant NM_001930.4:c.460_461delAG (chr19-12679833-CCT-C) – ACMG Classification: Pathogenic (11 pts)

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_001930.4(DHPS):c.460_461delAG(p.Arg154GlyfsTer11) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000824 in 1,614,066 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

DHPS
NM_001930.4 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:1

Conservation

PhyloP100: 0.212

Publications

0 publications found

Variant links:

Genes affected

DHPS (HGNC:2869): (deoxyhypusine synthase) This gene encodes a protein that is required for the formation of hypusine, a unique amino acid formed by the posttranslational modification of only one protein, eukaryotic translation initiation factor 5A. The encoded protein catalyzes the first step in hypusine formation by transferring the butylamine moiety of spermidine to a specific lysine residue of the eukaryotic translation initiation factor 5A precursor, forming an intermediate deoxyhypusine residue. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2011]

DHPS Gene-Disease associations (from GenCC):

neurodevelopmental disorder with seizures and speech and walking impairment
Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, G2P, Labcorp Genetics (formerly Invitae)

DHPS links:

ENSG00000285589 (HGNC:):

ENSG00000285589 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 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;

PP5

Variant 19-12679833-CCT-C is Pathogenic according to our data. Variant chr19-12679833-CCT-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1702982.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001930.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DHPS	NM_001930.4	MANE Select	c.460_461delAG	p.Arg154GlyfsTer11	frameshift	Exon 3 of 9	NP_001921.1	P49366-1
DHPS	NM_001369691.1		c.460_461delAG	p.Arg154GlyfsTer11	frameshift	Exon 3 of 9	NP_001356620.1
DHPS	NM_001206974.2		c.334_335delAG	p.Arg112GlyfsTer11	frameshift	Exon 3 of 9	NP_001193903.1	P49366-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DHPS	ENST00000210060.12	TSL:1 MANE Select	c.460_461delAG	p.Arg154GlyfsTer11	frameshift	Exon 3 of 9	ENSP00000210060.6	P49366-1
DHPS	ENST00000351660.9	TSL:1	c.460_461delAG	p.Arg154GlyfsTer11	frameshift	Exon 3 of 8	ENSP00000221303.5	P49366-2
DHPS	ENST00000601537.5	TSL:1	n.460_461delAG		non_coding_transcript_exon	Exon 3 of 8	ENSP00000472122.1	Q5J8M5

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000559

AC:

AN:

250552

AF XY:

0.0000812

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000531

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000828

AC:

121

AN:

1461864

Hom.:

AF XY:

0.0000976

AC XY:

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.000162

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.0000374

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000845

AC:

AN:

1112006

Other (OTH)

AF:

0.0000828

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

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:

0.0000788

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74366

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41438

American (AMR)

AF:

0.000131

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.000207

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.0000831

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000237

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Neurodevelopmental disorder with seizures and speech and walking impairment (2)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.21

Mutation Taster

=7/193

disease causing (fs/PTC)

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over