1-155235725-G-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PM5

The ENST00000368373.8(GBA1):ā€‹c.1344C>Gā€‹(p.Asp448Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,296 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D448H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 30)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

GBA1
ENST00000368373.8 missense

Scores

5
8
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.855
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 2 uncertain in ENST00000368373.8
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-155235727-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 4293.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GBA1NM_000157.4 linkuse as main transcriptc.1344C>G p.Asp448Glu missense_variant 9/11 ENST00000368373.8 NP_000148.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GBA1ENST00000368373.8 linkuse as main transcriptc.1344C>G p.Asp448Glu missense_variant 9/111 NM_000157.4 ENSP00000357357 P1P04062-1

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250178
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135208
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:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461296
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726866
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000595

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Uncertain
0.10
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.93
D;D;.;.
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.23
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.94
.;D;D;D
M_CAP
Pathogenic
0.42
D
MetaRNN
Uncertain
0.72
D;D;D;D
MetaSVM
Pathogenic
0.83
D
MutationAssessor
Uncertain
2.1
M;M;.;.
MutationTaster
Benign
0.89
D;D;D;D;D
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-2.0
N;N;N;N
REVEL
Pathogenic
0.74
Sift
Benign
0.034
D;D;D;D
Sift4G
Benign
0.062
T;T;T;T
Polyphen
0.21
B;B;.;.
Vest4
0.57
MutPred
0.53
Loss of solvent accessibility (P = 0.0561);Loss of solvent accessibility (P = 0.0561);.;.;
MVP
0.95
MPC
0.72
ClinPred
0.35
T
GERP RS
1.6
Varity_R
0.56
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs78802049; hg19: chr1-155205516; API