rs144732839

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PS1_ModeratePM2PM5PP3_ModeratePP5_Moderate

The NM_017807.4(OSGEP):​c.839G>T​(p.Arg280Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,752 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 Likely pathogenic (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R280C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

OSGEP
NM_017807.4 missense

Scores

8
8
3

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.42
Variant links:
Genes affected
OSGEP (HGNC:18028): (O-sialoglycoprotein endopeptidase) Predicted to enable N(6)-L-threonylcarbamoyladenine synthase activity and metal ion binding activity. Involved in tRNA threonylcarbamoyladenosine modification. Located in cytoplasm; nuclear speck; and plasma membrane. Part of EKC/KEOPS complex. Implicated in Galloway-Mowat syndrome 3. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PS1
Transcript NM_017807.4 (OSGEP) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr14-20447646-G-A is described in Lovd as [Likely_pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.846
PP5
Variant 14-20447645-C-A is Pathogenic according to our data. Variant chr14-20447645-C-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1236170.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr14-20447645-C-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OSGEPNM_017807.4 linkuse as main transcriptc.839G>T p.Arg280Leu missense_variant 9/11 ENST00000206542.9 NP_060277.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OSGEPENST00000206542.9 linkuse as main transcriptc.839G>T p.Arg280Leu missense_variant 9/111 NM_017807.4 ENSP00000206542 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251284
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135822
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:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461752
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727184
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:
0.0000749
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Galloway-Mowat syndrome 3 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingSuma Genomics, Suma Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Uncertain
0.13
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.85
D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-6.7
D
REVEL
Uncertain
0.46
Sift
Uncertain
0.0010
D
Sift4G
Benign
0.063
T
Polyphen
0.99
D
Vest4
0.82
MutPred
0.68
Loss of MoRF binding (P = 0.1131);
MVP
0.82
MPC
0.95
ClinPred
1.0
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.81
gMVP
0.80

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.

Other links and lift over

dbSNP: rs144732839; hg19: chr14-20915804; API