chr17-76902584-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001199172.2(MGAT5B):​c.359G>A​(p.Arg120Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000175 in 1,601,634 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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: 0.000017 ( 0 hom. )

Consequence

MGAT5B
NM_001199172.2 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.48
Variant links:
Genes affected
MGAT5B (HGNC:24140): (alpha-1,6-mannosylglycoprotein 6-beta-N-acetylglucosaminyltransferase B) Enables alpha-1,6-mannosylglycoprotein 6-beta-N-acetylglucosaminyltransferase activity and manganese ion binding activity. Involved in protein O-linked glycosylation via serine. Predicted to be located in Golgi membrane. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23216379).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MGAT5BNM_001199172.2 linkuse as main transcriptc.359G>A p.Arg120Gln missense_variant 4/18 ENST00000569840.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MGAT5BENST00000569840.7 linkuse as main transcriptc.359G>A p.Arg120Gln missense_variant 4/185 NM_001199172.2 A1Q3V5L5-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152160
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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
GnomAD4 exome
AF:
0.0000166
AC:
24
AN:
1449474
Hom.:
0
Cov.:
32
AF XY:
0.0000181
AC XY:
13
AN XY:
719842
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000229
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:
0.0000208
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152160
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000248
AC:
3

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 GeneticsMar 01, 2024The c.392G>A (p.R131Q) alteration is located in exon 3 (coding exon 3) of the MGAT5B gene. This alteration results from a G to A substitution at nucleotide position 392, causing the arginine (R) at amino acid position 131 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
0.11
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.17
.;T;.
Eigen
Benign
0.015
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.6
L;L;.
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
-1.3
N;.;N
REVEL
Benign
0.074
Sift
Uncertain
0.029
D;.;D
Sift4G
Uncertain
0.045
D;D;D
Polyphen
0.18
B;.;B
Vest4
0.30
MVP
0.55
MPC
0.50
ClinPred
0.32
T
GERP RS
3.2
Varity_R
0.14
gMVP
0.62

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: rs142179833; hg19: chr17-74898666; COSMIC: COSV56928771; API