19-12676072-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001930.4(DHPS):c.959G>A(p.Arg320Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

DHPS
NM_001930.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.55

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 links:

ENSG00000285589 (HGNC:):

ENSG00000285589 links:

WDR83 (HGNC:32672): (WD repeat domain 83) This gene encodes a member of the WD-40 protein family. The protein is proposed to function as a molecular scaffold for various multimeric protein complexes. The protein associates with several components of the extracellular signal-regulated kinase (ERK) pathway, and promotes ERK activity in response to serum or other signals. The protein also interacts with egl nine homolog 3 (EGLN3, also known as PHD3) and regulates expression of hypoxia-inducible factor 1, and has been purified as part of the spliceosome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

WDR83 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DHPS	NM_001930.4 link	c.959G>A	p.Arg320Gln	missense_variant	Exon 8 of 9	ENST00000210060.12	NP_001921.1	P49366-1A0A024R7D0
WDR83	NM_001099737.3 link	c.*400C>T		downstream_gene_variant		ENST00000418543.8	NP_001093207.1	Q9BRX9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DHPS	ENST00000210060.12 link	c.959G>A	p.Arg320Gln	missense_variant	Exon 8 of 9	1	NM_001930.4	ENSP00000210060.6	P49366-1
ENSG00000285589	ENST00000648033.1 link	n.*504G>A		non_coding_transcript_exon_variant	Exon 8 of 14			ENSP00000498000.1	A0A3B3IU31
ENSG00000285589	ENST00000648033.1 link	n.*504G>A		3_prime_UTR_variant	Exon 8 of 14			ENSP00000498000.1	A0A3B3IU31
WDR83	ENST00000418543.8 link	c.*400C>T		downstream_gene_variant		1	NM_001099737.3	ENSP00000402653.3	Q9BRX9

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

251016

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135710

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461764

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727186

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.959G>A (p.R320Q) alteration is located in exon 8 (coding exon 8) of the DHPS gene. This alteration results from a G to A substitution at nucleotide position 959, causing the arginine (R) at amino acid position 320 to be replaced by a glutamine (Q). 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

Benign

0.12

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.24

T;T;.;.;.

Eigen

Benign

0.18

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.94

D;D;D;D;D

M_CAP

Benign

0.026

MetaRNN

Uncertain

0.61

D;D;D;D;D

MetaSVM

Benign

-0.75

MutationAssessor

Pathogenic

3.1

M;.;.;.;.

PrimateAI

Uncertain

0.57

PROVEAN

Uncertain

-3.2

D;.;D;.;.

REVEL

Benign

0.18

Sift

Benign

0.073

T;.;T;.;.

Sift4G

Benign

0.096

T;T;T;T;T

Polyphen

0.93

P;.;P;.;.

Vest4

0.47

MutPred

0.48

Gain of glycosylation at S315 (P = 0.0887);.;.;.;.;

MVP

0.44

MPC

0.20

ClinPred

0.95

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.4

Varity_R

0.58

gMVP

0.58

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