chr9-137555618-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_138778.5(DPH7):​c.980C>T​(p.Ser327Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000782 in 1,610,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000082 ( 0 hom. )

Consequence

DPH7
NM_138778.5 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.44
Variant links:
Genes affected
DPH7 (HGNC:25199): (diphthamide biosynthesis 7) Diphthamide is a post-translationally modified histidine residue present in elongation factor 2, and is the target of diphtheria toxin. This gene encodes a protein that contains a WD-40 domain, and is thought to be involved in diphthamide biosynthesis. A similar protein in yeast functions as a methylesterase, converting methylated diphthine to diphthine, which can then undergo amidation to produce diphthamide. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.831

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DPH7NM_138778.5 linkuse as main transcriptc.980C>T p.Ser327Phe missense_variant 9/9 ENST00000277540.7 NP_620133.1 Q9BTV6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DPH7ENST00000277540.7 linkuse as main transcriptc.980C>T p.Ser327Phe missense_variant 9/91 NM_138778.5 ENSP00000277540.2 Q9BTV6
DPH7ENST00000467243.5 linkuse as main transcriptn.597C>T non_coding_transcript_exon_variant 2/21
DPH7ENST00000479650.5 linkuse as main transcriptn.1083C>T non_coding_transcript_exon_variant 7/75

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000202
AC:
5
AN:
248052
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134240
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000449
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000823
AC:
120
AN:
1458410
Hom.:
0
Cov.:
31
AF XY:
0.0000759
AC XY:
55
AN XY:
725084
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000102
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152182
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000389
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 09, 2022The c.980C>T (p.S327F) alteration is located in exon 9 (coding exon 9) of the DPH7 gene. This alteration results from a C to T substitution at nucleotide position 980, causing the serine (S) at amino acid position 327 to be replaced by a phenylalanine (F). 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
0.24
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.27
T
Eigen
Uncertain
0.30
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.63
T
M_CAP
Benign
0.045
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.9
M
PrimateAI
Benign
0.42
T
PROVEAN
Pathogenic
-4.6
D
REVEL
Benign
0.25
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.71
MVP
0.67
MPC
0.56
ClinPred
0.97
D
GERP RS
3.5
Varity_R
0.34
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs747419748; hg19: chr9-140450070; API