9-133153735-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_021996.6(GBGT1):​c.886C>T​(p.Arg296Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000583 in 1,613,482 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. R296Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00029 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

GBGT1
NM_021996.6 missense

Scores

3
4
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.43
Variant links:
Genes affected
GBGT1 (HGNC:20460): (globoside alpha-1,3-N-acetylgalactosaminyltransferase 1 (FORS blood group)) This gene encodes a glycosyltransferase that plays a role in the synthesis of Forssman glycolipid (FG), a member of the globoseries glycolipid family. Glycolipids such as FG form attachment sites for the binding of pathogens to cells; expression of this protein may determine host tropism to microorganisms. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0790354).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GBGT1NM_021996.6 linkuse as main transcriptc.886C>T p.Arg296Trp missense_variant 7/7 ENST00000372040.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GBGT1ENST00000372040.9 linkuse as main transcriptc.886C>T p.Arg296Trp missense_variant 7/71 NM_021996.6 P1Q8N5D6-1

Frequencies

GnomAD3 genomes
AF:
0.000289
AC:
44
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00104
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000838
AC:
21
AN:
250580
Hom.:
0
AF XY:
0.0000665
AC XY:
9
AN XY:
135416
show subpopulations
Gnomad AFR exome
AF:
0.000923
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000342
AC:
50
AN:
1461164
Hom.:
0
Cov.:
31
AF XY:
0.0000330
AC XY:
24
AN XY:
726840
show subpopulations
Gnomad4 AFR exome
AF:
0.000926
Gnomad4 AMR exome
AF:
0.0000448
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:
0.0000135
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.000289
AC:
44
AN:
152318
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.00103
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000290
Hom.:
0
Bravo
AF:
0.000295
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.38
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.10
T;.
Eigen
Benign
0.15
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.080
D
MetaRNN
Benign
0.079
T;T
MetaSVM
Benign
-0.74
T
MutationTaster
Benign
0.73
D;D;D;D
PROVEAN
Uncertain
-2.5
D;D
REVEL
Benign
0.25
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
0.84
P;.
Vest4
0.23
MVP
0.46
MPC
0.40
ClinPred
0.20
T
GERP RS
4.5
Varity_R
0.40
gMVP
0.54

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: rs141041392; hg19: chr9-136029122; API