rs141743580

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_194318.4(B3GLCT):​c.450C>A​(p.Asp150Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000193 in 1,568,228 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000097 ( 0 hom. )

Consequence

B3GLCT
NM_194318.4 missense

Scores

3
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0870
Variant links:
Genes affected
B3GLCT (HGNC:20207): (beta 3-glucosyltransferase) The protein encoded by this gene is a beta-1,3-glucosyltransferase that transfers glucose to O-linked fucosylglycans on thrombospondin type-1 repeats (TSRs) of several proteins. The encoded protein is a type II membrane protein. Defects in this gene are a cause of Peters-plus syndrome (PPS).[provided by RefSeq, Mar 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0049774945).
BP6
Variant 13-31247957-C-A is Benign according to our data. Variant chr13-31247957-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 599463.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00109 (166/152270) while in subpopulation AFR AF= 0.00373 (155/41542). AF 95% confidence interval is 0.00325. There are 1 homozygotes in gnomad4. There are 77 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
B3GLCTNM_194318.4 linkuse as main transcriptc.450C>A p.Asp150Glu missense_variant 6/15 ENST00000343307.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
B3GLCTENST00000343307.5 linkuse as main transcriptc.450C>A p.Asp150Glu missense_variant 6/151 NM_194318.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00109
AC:
166
AN:
152152
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00374
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000523
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:
0.00144
GnomAD3 exomes
AF:
0.000287
AC:
72
AN:
251008
Hom.:
0
AF XY:
0.000169
AC XY:
23
AN XY:
135722
show subpopulations
Gnomad AFR exome
AF:
0.00414
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000968
AC:
137
AN:
1415958
Hom.:
0
Cov.:
24
AF XY:
0.0000792
AC XY:
56
AN XY:
707338
show subpopulations
Gnomad4 AFR exome
AF:
0.00389
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.34e-7
Gnomad4 OTH exome
AF:
0.0000849
GnomAD4 genome
AF:
0.00109
AC:
166
AN:
152270
Hom.:
1
Cov.:
33
AF XY:
0.00103
AC XY:
77
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00373
Gnomad4 AMR
AF:
0.000523
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:
0.00142
Alfa
AF:
0.000223
Hom.:
0
Bravo
AF:
0.00115
ESP6500AA
AF:
0.00409
AC:
18
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000296
AC:
36

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingInstitute for Genomic Medicine (IGM) Clinical Laboratory, Nationwide Children's HospitalSep 05, 2017BS1, BS2, BP4; This alteration has an allele frequency that is greater than expected for the associated disease, was seen in a healthy adult where full penetrance of the disorder is expected at an early age, and is predicted to be tolerated by multiple functional prediction tools. -
Peters plus syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeAug 28, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.51
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
10
DANN
Uncertain
0.98
DEOGEN2
Benign
0.079
T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.0050
T
MetaSVM
Benign
-0.83
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
0.90
D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.7
N
REVEL
Benign
0.11
Sift
Benign
0.11
T
Sift4G
Benign
0.095
T
Polyphen
0.30
B
Vest4
0.30
MutPred
0.31
Gain of methylation at K153 (P = 0.107);
MVP
0.38
MPC
0.26
ClinPred
0.015
T
GERP RS
1.7
Varity_R
0.056
gMVP
0.52

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: rs141743580; hg19: chr13-31822094; API