rs28928906

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM2PP3_ModeratePP5_Very_Strong

The NM_002435.3(MPI):​c.884G>A​(p.Arg295His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,614,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MPI
NM_002435.3 missense

Scores

17
1
1

Clinical Significance

Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 9.88
Variant links:
Genes affected
MPI (HGNC:7216): (mannose phosphate isomerase) Phosphomannose isomerase catalyzes the interconversion of fructose-6-phosphate and mannose-6-phosphate and plays a critical role in maintaining the supply of D-mannose derivatives, which are required for most glycosylation reactions. Mutations in the MPI gene were found in patients with carbohydrate-deficient glycoprotein syndrome, type Ib. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.936
PP5
Variant 15-74897050-G-A is Pathogenic according to our data. Variant chr15-74897050-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 14349.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MPINM_002435.3 linkuse as main transcriptc.884G>A p.Arg295His missense_variant 7/8 ENST00000352410.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MPIENST00000352410.9 linkuse as main transcriptc.884G>A p.Arg295His missense_variant 7/81 NM_002435.3 P1P34949-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152118
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251450
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135900
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000246
AC:
36
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.0000248
AC XY:
18
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152118
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74310
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000537
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

MPI-congenital disorder of glycosylation Pathogenic:3
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 08, 2021- -
Likely pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 05, 2024- -
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 01, 2002- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.94
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.61
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.93
D;D;.;D;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
1.0
D;D;D;D;D
M_CAP
Pathogenic
0.42
D
MetaRNN
Pathogenic
0.94
D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.5
.;H;.;.;.
MutationTaster
Benign
1.0
A;A;A;A;A
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-4.8
D;D;D;D;D
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
D;D;D;D;T
Sift4G
Uncertain
0.0030
D;D;D;D;D
Polyphen
1.0
.;D;.;.;D
Vest4
0.99, 0.99, 0.98, 0.92
MVP
0.98
MPC
0.84
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.89
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs28928906; hg19: chr15-75189391; API