rs75636769

Variant summary

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

The NM_000157.4(GBA1):​c.686C>T​(p.Ala229Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,836 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A229E) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

GBA1
NM_000157.4 missense

Scores

3
4
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.38
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a strand (size 5) in uniprot entity GBA1_HUMAN there are 8 pathogenic changes around while only 0 benign (100%) in NM_000157.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GBA1NM_000157.4 linkuse as main transcriptc.686C>T p.Ala229Val missense_variant 6/11 ENST00000368373.8 NP_000148.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GBA1ENST00000368373.8 linkuse as main transcriptc.686C>T p.Ala229Val missense_variant 6/111 NM_000157.4 ENSP00000357357 P1P04062-1

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251330
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135834
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461836
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727210
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityNov 01, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.16
CADD
Benign
15
DANN
Benign
0.92
DEOGEN2
Pathogenic
0.88
D;D;.;.
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.29
N
LIST_S2
Benign
0.78
.;T;T;T
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.45
T;T;T;T
MetaSVM
Uncertain
0.42
D
MutationAssessor
Benign
2.0
M;M;.;.
MutationTaster
Benign
0.56
D;D;D;D;N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-2.2
N;N;N;N
REVEL
Uncertain
0.64
Sift
Benign
0.27
T;T;T;T
Sift4G
Benign
0.28
T;T;T;T
Polyphen
0.089
B;B;.;.
Vest4
0.49
MutPred
0.53
Gain of methylation at K233 (P = 0.0678);Gain of methylation at K233 (P = 0.0678);.;.;
MVP
0.80
MPC
0.76
ClinPred
0.053
T
GERP RS
0.17
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.23
gMVP
0.84

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: rs75636769; hg19: chr1-155208000; API