rs111541487

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_152490.5(B3GALNT2):​c.1487G>A​(p.Arg496Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000458 in 1,614,102 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict 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. R496G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000041 ( 3 hom. )

Consequence

B3GALNT2
NM_152490.5 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.406

Publications

1 publications found
Variant links:
Genes affected
B3GALNT2 (HGNC:28596): (beta-1,3-N-acetylgalactosaminyltransferase 2) This gene encodes a member of the glycosyltransferase 31 family. The encoded protein synthesizes GalNAc:beta-1,3GlcNAc, a novel carbohydrate structure, on N- and O-glycans. Alternatively spliced transcript variants that encode different isoforms have been described. [provided by RefSeq, Mar 2013]
TBCE (HGNC:11582): (tubulin folding cofactor E) Cofactor E is one of four proteins (cofactors A, D, E, and C) involved in the pathway leading to correctly folded beta-tubulin from folding intermediates. Cofactors A and D are believed to play a role in capturing and stabilizing beta-tubulin intermediates in a quasi-native confirmation. Cofactor E binds to the cofactor D/beta-tubulin complex; interaction with cofactor C then causes the release of beta-tubulin polypeptides that are committed to the native state. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]
TBCE Gene-Disease associations (from GenCC):
  • hypoparathyroidism-retardation-dysmorphism syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Orphanet, G2P
  • early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • encephalopathy, progressive, with amyotrophy and optic atrophy
    Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: PanelApp Australia, ClinGen, G2P, Ambry Genetics
  • autosomal recessive Kenny-Caffey syndrome
    Inheritance: AR Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.014823884).
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152490.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
B3GALNT2
NM_152490.5
MANE Select
c.1487G>Ap.Arg496Gln
missense
Exon 12 of 12NP_689703.1Q8NCR0-1
TBCE
NM_003193.5
MANE Select
c.*1460C>T
3_prime_UTR
Exon 17 of 17NP_003184.1Q15813-1
TBCE
NM_001287801.2
c.*1460C>T
3_prime_UTR
Exon 18 of 18NP_001274730.1Q15813-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
B3GALNT2
ENST00000366600.8
TSL:1 MANE Select
c.1487G>Ap.Arg496Gln
missense
Exon 12 of 12ENSP00000355559.3Q8NCR0-1
TBCE
ENST00000642610.2
MANE Select
c.*1460C>T
3_prime_UTR
Exon 17 of 17ENSP00000494796.1Q15813-1
B3GALNT2
ENST00000954792.1
c.1607G>Ap.Arg536Gln
missense
Exon 13 of 13ENSP00000624851.1

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000265
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251404
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000410
AC:
60
AN:
1461862
Hom.:
3
Cov.:
30
AF XY:
0.0000399
AC XY:
29
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00102
AC:
34
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111992
Other (OTH)
AF:
0.000315
AC:
19
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
4
8
13
17
21
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:
0.0000920
AC:
14
AN:
152240
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.000313
AC:
13
AN:
41556
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.00
Hom.:
0
Bravo
AF:
0.0000567
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 11 (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
4.4
DANN
Benign
0.81
DEOGEN2
Benign
0.016
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.085
N
M_CAP
Benign
0.0074
T
MetaRNN
Benign
0.015
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.9
N
PhyloP100
0.41
PrimateAI
Benign
0.17
T
PROVEAN
Benign
0.020
N
REVEL
Benign
0.035
Sift
Benign
1.0
T
Sift4G
Benign
0.69
T
Polyphen
0.0
B
Vest4
0.031
MutPred
0.32
Loss of MoRF binding (P = 0.004)
MVP
0.23
MPC
0.28
ClinPred
0.036
T
GERP RS
-1.3
Varity_R
0.017
gMVP
0.45
Mutation Taster
=93/7
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: rs111541487; hg19: chr1-235613537; COSMIC: COSV64003600; COSMIC: COSV64003600; API