rs782277000

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP2BP4

The NM_138706.5(B3GNT6):​c.455G>A​(p.Arg152His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000114 in 1,574,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. R152C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

B3GNT6
NM_138706.5 missense

Scores

1
5
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.50

Publications

0 publications found
Variant links:
Genes affected
B3GNT6 (HGNC:24141): (UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 6) The protein encoded by this gene is a beta-1,3-N-acetylglucosaminyltransferase that adds an N-acetylglucosamine moiety to N-acetylgalactosamine-modified serine or threonine. The encoded enzyme is responsible for creating the core 3 structure of O-glycans, which are important components of mucin-type glycoproteins. [provided by RefSeq, Dec 2016]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Trascript score misZ: -2.0224 (below the threshold of 3.09).
BP4
Computational evidence support a benign effect (MetaRNN=0.42116448).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
B3GNT6NM_138706.5 linkc.455G>A p.Arg152His missense_variant Exon 2 of 2 ENST00000622824.1 NP_619651.3 Q6ZMB0-1A8K9Q8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
B3GNT6ENST00000622824.1 linkc.455G>A p.Arg152His missense_variant Exon 2 of 2 1 NM_138706.5 ENSP00000484640.1 Q6ZMB0-1
B3GNT6ENST00000528622.5 linkc.*91G>A downstream_gene_variant 3 ENSP00000435628.1 E9PJ79

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000164
AC:
3
AN:
182632
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.000224
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000704
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000351
AC:
5
AN:
1422524
Hom.:
0
Cov.:
30
AF XY:
0.00000142
AC XY:
1
AN XY:
706590
show subpopulations
African (AFR)
AF:
0.0000939
AC:
3
AN:
31954
American (AMR)
AF:
0.00
AC:
0
AN:
41578
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25480
East Asian (EAS)
AF:
0.0000264
AC:
1
AN:
37872
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83482
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
36318
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5436
European-Non Finnish (NFE)
AF:
9.08e-7
AC:
1
AN:
1101234
Other (OTH)
AF:
0.00
AC:
0
AN:
59170
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.535
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000854
AC:
13
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74322
show subpopulations
African (AFR)
AF:
0.000314
AC:
13
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67998
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000264
AC:
3

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Nov 09, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.455G>A (p.R152H) alteration is located in exon 2 (coding exon 1) of the B3GNT6 gene. This alteration results from a G to A substitution at nucleotide position 455, causing the arginine (R) at amino acid position 152 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.32
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.086
T
Eigen
Uncertain
0.33
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.036
D
MetaRNN
Benign
0.42
T
MetaSVM
Benign
-0.78
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
3.5
PrimateAI
Pathogenic
0.92
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.49
MutPred
0.65
Loss of MoRF binding (P = 0.03);
MVP
0.26
ClinPred
0.85
D
GERP RS
1.3
Varity_R
0.083
gMVP
0.59
Mutation Taster
=90/10
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: rs782277000; hg19: chr11-76751050; API