17-82956753-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001009905.3(B3GNTL1):​c.902G>A​(p.Arg301Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000196 in 1,584,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

B3GNTL1
NM_001009905.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0490
Variant links:
Genes affected
B3GNTL1 (HGNC:21727): (UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase like 1) Predicted to enable glycosyltransferase activity. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0173496).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
B3GNTL1NM_001009905.3 linkuse as main transcriptc.902G>A p.Arg301Gln missense_variant 11/13 ENST00000320865.4 NP_001009905.2 Q67FW5A0A024R8X6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
B3GNTL1ENST00000320865.4 linkuse as main transcriptc.902G>A p.Arg301Gln missense_variant 11/131 NM_001009905.3 ENSP00000319979.4 Q67FW5

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152184
Hom.:
0
Cov.:
33
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:
0.000578
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:
0.0000845
AC:
17
AN:
201174
Hom.:
0
AF XY:
0.0000928
AC XY:
10
AN XY:
107726
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000878
Gnomad SAS exome
AF:
0.000119
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000114
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000188
AC:
27
AN:
1432370
Hom.:
0
Cov.:
31
AF XY:
0.0000169
AC XY:
12
AN XY:
709748
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000237
Gnomad4 SAS exome
AF:
0.0000979
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000820
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152184
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000578
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000322
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000665
AC:
8

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 11, 2023The c.947G>A (p.R316Q) alteration is located in exon 11 (coding exon 11) of the B3GNTL1 gene. This alteration results from a G to A substitution at nucleotide position 947, causing the arginine (R) at amino acid position 316 to be replaced by a glutamine (Q). 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
0.071
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.031
T;T
Eigen
Benign
-0.99
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.015
N
LIST_S2
Uncertain
0.88
D;D
M_CAP
Benign
0.0037
T
MetaRNN
Benign
0.017
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
.;M
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.4
.;N
REVEL
Benign
0.013
Sift
Benign
0.12
.;T
Sift4G
Benign
0.17
T;T
Polyphen
0.17
.;B
Vest4
0.24
MVP
0.40
MPC
0.12
ClinPred
0.049
T
GERP RS
-0.50
Varity_R
0.046
gMVP
0.19

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: rs761635140; hg19: chr17-80914629; API