chr2-134270500-C-T

Variant summary

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

The NM_002410.5(MGAT5):​c.356C>T​(p.Ser119Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MGAT5
NM_002410.5 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.96
Variant links:
Genes affected
MGAT5 (HGNC:7049): (alpha-1,6-mannosylglycoprotein 6-beta-N-acetylglucosaminyltransferase) The protein encoded by this gene belongs to the glycosyltransferase family. It catalyzes the addition of beta-1,6-N-acetylglucosamine to the alpha-linked mannose of biantennary N-linked oligosaccharides present on the newly synthesized glycoproteins. It is one of the most important enzymes involved in the regulation of the biosynthesis of glycoprotein oligosaccharides. Alterations of the oligosaccharides on cell surface glycoproteins cause significant changes in the adhesive or migratory behavior of a cell. Increase in the activity of this enzyme has been correlated with the progression of invasive malignancies. [provided by RefSeq, Oct 2011]

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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=0.13377151).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MGAT5NM_002410.5 linkuse as main transcriptc.356C>T p.Ser119Phe missense_variant 2/16 ENST00000281923.4 NP_002401.1 Q09328

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MGAT5ENST00000281923.4 linkuse as main transcriptc.356C>T p.Ser119Phe missense_variant 2/161 NM_002410.5 ENSP00000281923.2 Q09328
MGAT5ENST00000409645.5 linkuse as main transcriptc.356C>T p.Ser119Phe missense_variant 3/175 ENSP00000386377.1 Q09328

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251358
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135846
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461854
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756

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 08, 2024The c.356C>T (p.S119F) alteration is located in exon 1 (coding exon 1) of the MGAT5 gene. This alteration results from a C to T substitution at nucleotide position 356, causing the serine (S) at amino acid position 119 to be replaced by a phenylalanine (F). 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
0.17
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.27
T;T
Eigen
Benign
0.11
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.84
.;T
M_CAP
Benign
0.0033
T
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
0.55
N;N
MutationTaster
Benign
0.93
D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.050
N;N
REVEL
Benign
0.037
Sift
Benign
0.057
T;T
Sift4G
Uncertain
0.058
T;T
Polyphen
0.19
B;B
Vest4
0.32
MutPred
0.24
Loss of disorder (P = 0.0072);Loss of disorder (P = 0.0072);
MVP
0.043
MPC
0.32
ClinPred
0.29
T
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.078
gMVP
0.55

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1299887673; hg19: chr2-135028071; API