5-180792256-G-A
Position:
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_002406.4(MGAT1):c.716C>T(p.Ser239Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,724 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: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
MGAT1
NM_002406.4 missense
NM_002406.4 missense
Scores
13
5
1
Clinical Significance
Conservation
PhyloP100: 9.07
Genes affected
MGAT1 (HGNC:7044): (alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase) There are believed to be over 100 different glycosyltransferases involved in the synthesis of protein-bound and lipid-bound oligosaccharides. UDP-N-acetylglucosamine:alpha-3-D-mannoside beta-1,2-N-acetylglucosaminyltransferase I is a medial-Golgi enzyme essential for the synthesis of hybrid and complex N-glycans. The protein, encoded by a single exon, shows typical features of a type II transmembrane protein. The protein is believed to be essential for normal embryogenesis. Several variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.965
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes
GnomAD3 genomes
Cov.:
33
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1460724Hom.: 0 Cov.: 36 AF XY: 0.00 AC XY: 0AN XY: 726690
GnomAD4 exome
AF:
AC:
1
AN:
1460724
Hom.:
Cov.:
36
AF XY:
AC XY:
0
AN XY:
726690
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome
GnomAD4 genome
Cov.:
33
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 submitter | clinical testing | Ambry Genetics | Feb 12, 2024 | The c.716C>T (p.S239L) alteration is located in exon 3 (coding exon 1) of the MGAT1 gene. This alteration results from a C to T substitution at nucleotide position 716, causing the serine (S) at amino acid position 239 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Pathogenic
DEOGEN2
Pathogenic
D;D;D;D;D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;.;.;D;.
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
M;M;M;M;M
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D
Polyphen
D;D;D;D;D
Vest4
MutPred
Loss of disorder (P = 0.0679);Loss of disorder (P = 0.0679);Loss of disorder (P = 0.0679);Loss of disorder (P = 0.0679);Loss of disorder (P = 0.0679);
MVP
MPC
1.8
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.