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GeneBe

12-85980130-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001351288.2(MGAT4C):c.596G>T(p.Arg199Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,613,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

MGAT4C
NM_001351288.2 missense

Scores

7
6
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17
Variant links:
Genes affected
MGAT4C (HGNC:30871): (MGAT4 family member C) Predicted to enable acetylglucosaminyltransferase activity. Predicted to be involved in protein N-linked glycosylation. Predicted to be located in Golgi membrane. [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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.785

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MGAT4CNM_001351288.2 linkuse as main transcriptc.596G>T p.Arg199Leu missense_variant 5/5 ENST00000611864.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MGAT4CENST00000611864.5 linkuse as main transcriptc.596G>T p.Arg199Leu missense_variant 5/55 NM_001351288.2 P1Q9UBM8-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152024
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
251036
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135672
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461754
Hom.:
0
Cov.:
32
AF XY:
0.00000688
AC XY:
5
AN XY:
727174
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152024
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74268
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsFeb 10, 2023The c.596G>T (p.R199L) alteration is located in exon 7 (coding exon 3) of the MGAT4C gene. This alteration results from a G to T substitution at nucleotide position 596, causing the arginine (R) at amino acid position 199 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
0.99
BayesDel_addAF
Pathogenic
0.16
D
BayesDel_noAF
Pathogenic
0.18
Cadd
Pathogenic
29
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.47
T;T;T;T;T;.
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Benign
0.019
T
MetaRNN
Pathogenic
0.78
D;D;D;D;D;D
MetaSVM
Uncertain
-0.035
T
MutationAssessor
Pathogenic
3.0
M;M;M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.74
T
Sift4G
Uncertain
0.011
D;D;D;D;D;.
Polyphen
1.0
D;D;D;D;D;.
Vest4
0.84
MVP
0.58
ClinPred
0.90
D
GERP RS
5.5
Varity_R
0.51
gMVP
0.93

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: rs770702724; hg19: chr12-86373908; COSMIC: COSV59833353; API