17-2033508-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001383.6(DPH1):​c.65G>A​(p.Arg22Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000514 in 1,613,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

DPH1
NM_001383.6 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.03
Variant links:
Genes affected
DPH1 (HGNC:3003): (diphthamide biosynthesis 1) The protein encoded by this gene is an enzyme involved in the biosynthesis of diphthamide, a modified histidine found only in elongation factor-2 (EEF2). Diphthamide residues in EEF2 are targeted for ADP-ribosylation by diphtheria toxin and Pseudomonas exotoxin A. Defects in this gene have been associated with both ovarian cancer and autosomal recessive intellectual disability with short stature, craniofacial, and ectodermal anomalies. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08514327).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DPH1NM_001383.6 linkuse as main transcriptc.65G>A p.Arg22Gln missense_variant 2/13 ENST00000263083.12 NP_001374.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DPH1ENST00000263083.12 linkuse as main transcriptc.65G>A p.Arg22Gln missense_variant 2/131 NM_001383.6 ENSP00000263083 P1Q9BZG8-4

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000442
AC:
11
AN:
249024
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135314
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000620
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000486
AC:
71
AN:
1461686
Hom.:
0
Cov.:
32
AF XY:
0.0000536
AC XY:
39
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000585
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152312
Hom.:
0
Cov.:
32
AF XY:
0.0000940
AC XY:
7
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000115
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000245
AC:
2
ExAC
AF:
0.0000331
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 02, 2023The c.80G>A (p.R27Q) alteration is located in exon 2 (coding exon 2) of the DPH1 gene. This alteration results from a G to A substitution at nucleotide position 80, causing the arginine (R) at amino acid position 27 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Developmental delay with short stature, dysmorphic facial features, and sparse hair 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityAug 25, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.37
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.85
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.085
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
0.63
D;D
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.80
N
REVEL
Benign
0.037
Sift
Benign
0.11
T
Sift4G
Benign
0.30
T
Polyphen
0.10
B
Vest4
0.21
MVP
0.53
MPC
0.14
ClinPred
0.12
T
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.024
gMVP
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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.

Other links and lift over

dbSNP: rs200134501; hg19: chr17-1936802; API