Genetic Variant GBA3:p.Tyr99Phe (chr4-22747305-A-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The ENST00000508166.5(GBA3):c.296A>T(p.Tyr99Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000314 in 1,604,220 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00032 ( 1 hom. )

Consequence

GBA3
ENST00000508166.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.44

Publications

0 publications found

Variant links:

Genes affected

GBA3 (HGNC:19069): (glucosylceramidase beta 3 (gene/pseudogene)) The protein encoded by this gene is a cytosolic enzyme that can hydrolyze several types of glycosides. The enzyme has its highest activity at neutral pH and is predominantly expressed in human liver, kidney, intestine, and spleen. This gene is a polymorphic pseudogene, with the most common allele being the functional allele that encodes the full-length protein. Some individuals contain a single nucleotide polymorphism that results in a premature stop codon in the coding region, and therefore this allele is pseudogenic due to the failure to produce a functional full-length protein. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Apr 2022]

GBA3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18655312).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000508166.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	HGVSc	Effect	Exon Rank
GBA3	NR_102355.2	n.375A>T	non_coding_transcript_exon	Exon 3 of 5
GBA3	NR_102357.2	n.297A>T	non_coding_transcript_exon	Exon 3 of 5
GBA3	NR_102356.2	n.365+11097A>T	intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
GBA3	ENST00000508166.5	TSL:1	c.296A>T	p.Tyr99Phe	missense	Exon 3 of 5	ENSP00000427458.1
GBA3	ENST00000503442.1	TSL:1	c.286+11097A>T		intron	N/A	ENSP00000422220.1
GBA3	ENST00000511446.2	TSL:2	c.-218A>T		5_prime_UTR	Exon 3 of 5	ENSP00000423754.1

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000265

AC:

AN:

245056

AF XY:

0.000248

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:

0.000715

Gnomad NFE exome

AF:

0.000430

Gnomad OTH exome

AF:

0.000338

GnomAD4 exome

AF:

0.000319

AC:

463

AN:

1452014

Hom.:

Cov.:

AF XY:

0.000302

AC XY:

218

AN XY:

720840

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33178

American (AMR)

AF:

0.00

AC:

AN:

44084

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25690

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39494

South Asian (SAS)

AF:

0.00

AC:

AN:

85264

European-Finnish (FIN)

AF:

0.000740

AC:

AN:

52728

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5706

European-Non Finnish (NFE)

AF:

0.000369

AC:

408

AN:

1105894

Other (OTH)

AF:

0.000250

AC:

AN:

59976

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

123

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.000269

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74356

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41450

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000941

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000441

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000157

Hom.:

Bravo

AF:

0.000189

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000123

AC:

ExAC

AF:

0.000273

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.15

CADD

Benign

(source)

DANN

Uncertain

0.98

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

MetaRNN

Benign

0.19

PhyloP100

7.4

PrimateAI

Uncertain

0.58

Vest4

0.51

MVP

0.53

GERP RS

5.6

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over