1-170539515-G-T

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_152281.3(GORAB):​c.367G>T​(p.Glu123*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,924 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 Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

GORAB
NM_152281.3 stop_gained

Scores

2
4

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 1.85

Publications

1 publications found
Variant links:
Genes affected
GORAB (HGNC:25676): (golgin, RAB6 interacting) This gene encodes a member of the golgin family, a group of coiled-coil proteins localized to the Golgi. The encoded protein may function in the secretory pathway. The encoded protein, which also localizes to the cytoplasm, was identified by interactions with the N-terminal kinase-like protein, and thus it may function in mitosis. Mutations in this gene have been associated with geroderma osteodysplastica. Alternatively spliced transcript variants have been described. [provided by RefSeq, Mar 2009]
GORAB Gene-Disease associations (from GenCC):
  • geroderma osteodysplastica
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 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 1-170539515-G-T is Pathogenic according to our data. Variant chr1-170539515-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 2650.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152281.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GORAB
NM_152281.3
MANE Select
c.367G>Tp.Glu123*
stop_gained
Exon 2 of 5NP_689494.3
GORAB
NM_001410894.1
c.316G>Tp.Glu106*
stop_gained
Exon 2 of 5NP_001397823.1
GORAB
NM_001146039.2
c.367G>Tp.Glu123*
stop_gained
Exon 2 of 4NP_001139511.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GORAB
ENST00000367763.8
TSL:2 MANE Select
c.367G>Tp.Glu123*
stop_gained
Exon 2 of 5ENSP00000356737.4
GORAB
ENST00000367762.2
TSL:1
c.367G>Tp.Glu123*
stop_gained
Exon 2 of 4ENSP00000356736.2
GORAB
ENST00000498166.6
TSL:1
n.*361G>T
non_coding_transcript_exon
Exon 4 of 7ENSP00000473336.2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152188
Hom.:
0
Cov.:
32
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000121
AC:
3
AN:
248940
AF XY:
0.0000148
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000269
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461736
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727174
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33464
American (AMR)
AF:
0.00
AC:
0
AN:
44702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111932
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74336
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41450
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Geroderma osteodysplastica Pathogenic:1
Dec 01, 2008
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

not provided Pathogenic:1
Jan 08, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Glu148*) in the GORAB gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GORAB are known to be pathogenic (PMID: 18997784, 19681135). This variant is present in population databases (rs119455951, gnomAD 0.003%). This premature translational stop signal has been observed in individual(s) with gerodermia osteodysplastica (PMID: 18997784). It has also been observed to segregate with disease in related individuals. This variant is also known as Glu123X. ClinVar contains an entry for this variant (Variation ID: 2650). For these reasons, this variant has been classified as Pathogenic.

GORAB-related disorder Pathogenic:1
Jan 09, 2024
PreventionGenetics, part of Exact Sciences
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

The GORAB c.442G>T variant is predicted to result in premature protein termination (p.Glu148*). In this literature, this variant is also referred to as p.Glu123X. This variant has been reported in the homozygous state in several individuals with gerodermia osteodysplasticum (Hennies et al. 2008. PubMed ID: 18997784). This variant is reported in 0.0027% of alleles in individuals of European (Non-Finnish) descent in gnomAD. Nonsense variants in GORAB are expected to be pathogenic. This variant is interpreted as pathogenic.

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
34
DANN
Uncertain
0.99
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.89
D
PhyloP100
1.9
Vest4
0.84
GERP RS
5.5
Mutation Taster
=4/196
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs119455951; hg19: chr1-170508656; API