rs121908302

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PM5PP2PP3_ModeratePP5

The NM_000157.4(GBA1):​c.160G>T​(p.Val54Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,826 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 (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V54M) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GBA1
NM_000157.4 missense

Scores

11
7
1

Clinical Significance

Pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 6.45

Publications

6 publications found
Variant links:
Genes affected
GBA1 (HGNC:4177): (glucosylceramidase beta 1) This gene encodes a lysosomal membrane protein that cleaves the beta-glucosidic linkage of glycosylceramide, an intermediate in glycolipid metabolism. Mutations in this gene cause Gaucher disease, a lysosomal storage disease characterized by an accumulation of glucocerebrosides. A related pseudogene is approximately 12 kb downstream of this gene on chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2010]
GBA1 Gene-Disease associations (from GenCC):
  • Parkinson disease
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Gaucher disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health, ClinGen
  • Gaucher disease perinatal lethal
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Laboratory for Molecular Medicine, Genomics England PanelApp
  • late-onset Parkinson disease
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Gaucher disease type I
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • Gaucher disease type II
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
  • Gaucher disease type III
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet
  • Gaucher disease-ophthalmoplegia-cardiovascular calcification syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-155240033-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 3383384.Status of the report is criteria_provided_single_submitter, 1 stars.
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 94 curated pathogenic missense variants (we use a threshold of 10). The gene has 3 curated benign missense variants. Gene score misZ: 1.1739 (below the threshold of 3.09). Trascript score misZ: 2.2879 (below the threshold of 3.09). GenCC associations: The gene is linked to late-onset Parkinson disease, Gaucher disease perinatal lethal, Gaucher disease, Gaucher disease type I, Gaucher disease-ophthalmoplegia-cardiovascular calcification syndrome, Gaucher disease type II, Parkinson disease, Gaucher disease type III.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.917
PP5
Variant 1-155240033-C-A is Pathogenic according to our data. Variant chr1-155240033-C-A is described in ClinVar as Pathogenic. ClinVar VariationId is 4313.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GBA1NM_000157.4 linkc.160G>T p.Val54Leu missense_variant Exon 3 of 11 ENST00000368373.8 NP_000148.2 P04062-1A0A068F658

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GBA1ENST00000368373.8 linkc.160G>T p.Val54Leu missense_variant Exon 3 of 11 1 NM_000157.4 ENSP00000357357.3 P04062-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461826
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53358
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112006
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
31
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Gaucher disease type I Pathogenic:2
Jan 01, 1996
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Sep 11, 2018
Foundation for Research in Genetics and Endocrinology, FRIGE's Institute of Human Genetics
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

The variant NM_000157.4: c.160G>T(p.V54L) in exon-3 of GBA gene has been seen in compound heterozygous status with another known variant NM_000157.4: c.1448T>C(p.L444P) in exon-10 of GBA gene. Both the variants are known pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.86
D;D;.
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
.;D;D
M_CAP
Pathogenic
0.86
D
MetaRNN
Pathogenic
0.92
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.2
M;M;M
PhyloP100
6.4
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-2.6
D;D;D
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0080
D;D;D
Sift4G
Uncertain
0.014
D;D;D
Polyphen
0.98
D;D;.
Vest4
0.92
MutPred
0.71
Loss of glycosylation at S51 (P = 0.3457);Loss of glycosylation at S51 (P = 0.3457);Loss of glycosylation at S51 (P = 0.3457);
MVP
0.97
MPC
0.18
ClinPred
0.98
D
GERP RS
3.5
Varity_R
0.73
gMVP
0.84
Mutation Taster
=1/99
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: rs121908302; hg19: chr1-155209824; API