NM_021996.6:c.697G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_021996.6(GBGT1):​c.697G>A​(p.Ala233Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000665 in 1,609,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

GBGT1
NM_021996.6 missense

Scores

16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.65

Publications

1 publications found
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 was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.02122888).
BP6
Variant 9-133153924-C-T is Benign according to our data. Variant chr9-133153924-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2371758.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021996.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GBGT1
NM_021996.6
MANE Select
c.697G>Ap.Ala233Thr
missense
Exon 7 of 7NP_068836.2
GBGT1
NM_001282632.2
c.646G>Ap.Ala216Thr
missense
Exon 6 of 6NP_001269561.1Q8N5D6-3
GBGT1
NM_001288572.2
c.556G>Ap.Ala186Thr
missense
Exon 7 of 7NP_001275501.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GBGT1
ENST00000372040.9
TSL:1 MANE Select
c.697G>Ap.Ala233Thr
missense
Exon 7 of 7ENSP00000361110.3Q8N5D6-1
GBGT1
ENST00000470431.5
TSL:1
c.*1250G>A
3_prime_UTR
Exon 6 of 6ENSP00000495017.1J7PW20
ENSG00000285245
ENST00000647146.1
c.396+1254G>A
intron
N/AENSP00000493691.1A0A2R8Y471

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152230
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000999
AC:
25
AN:
250224
AF XY:
0.0000961
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000927
Gnomad NFE exome
AF:
0.000124
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000611
AC:
89
AN:
1456920
Hom.:
0
Cov.:
32
AF XY:
0.0000525
AC XY:
38
AN XY:
723758
show subpopulations
African (AFR)
AF:
0.000269
AC:
9
AN:
33400
American (AMR)
AF:
0.00
AC:
0
AN:
44616
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26012
East Asian (EAS)
AF:
0.0000253
AC:
1
AN:
39532
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86140
European-Finnish (FIN)
AF:
0.0000941
AC:
5
AN:
53146
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000632
AC:
70
AN:
1108172
Other (OTH)
AF:
0.0000499
AC:
3
AN:
60150
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
6
12
19
25
31
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
AF:
0.000118
AC:
18
AN:
152348
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74498
show subpopulations
African (AFR)
AF:
0.000337
AC:
14
AN:
41582
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000695
Hom.:
0
Bravo
AF:
0.000132
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.000164
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.0020
DANN
Benign
0.88
DEOGEN2
Benign
0.022
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.036
N
LIST_S2
Benign
0.080
T
M_CAP
Benign
0.0078
T
MetaRNN
Benign
0.021
T
MetaSVM
Benign
-0.92
T
PhyloP100
-2.7
PROVEAN
Benign
-0.94
N
REVEL
Benign
0.014
Sift
Benign
0.35
T
Sift4G
Benign
0.60
T
Polyphen
0.0070
B
Vest4
0.031
MVP
0.10
MPC
0.091
ClinPred
0.023
T
GERP RS
-6.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.019
gMVP
0.31
Mutation Taster
=97/3
polymorphism

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: rs199834711; hg19: chr9-136029311; API