chr2-134254497-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BS2

The NM_002410.5(MGAT5):ā€‹c.94T>Cā€‹(p.Phe32Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

MGAT5
NM_002410.5 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MGAT5NM_002410.5 linkuse as main transcriptc.94T>C p.Phe32Leu missense_variant 1/16 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.94T>C p.Phe32Leu missense_variant 1/161 NM_002410.5 ENSP00000281923.2 Q09328

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461854
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsSep 20, 2023The c.94T>C (p.F32L) alteration is located in exon 1 (coding exon 1) of the MGAT5 gene. This alteration results from a T to C substitution at nucleotide position 94, causing the phenylalanine (F) at amino acid position 32 to be replaced by a leucine (L). 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
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.34
T;T
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.92
.;D
M_CAP
Benign
0.0073
T
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Benign
-0.48
T
MutationAssessor
Benign
1.4
L;L
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.51
Sift
Benign
0.055
T;T
Sift4G
Benign
0.096
T;T
Polyphen
0.97
D;D
Vest4
0.69
MutPred
0.66
Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);
MVP
0.25
MPC
0.71
ClinPred
0.90
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.72

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-135012068; API