15-74893329-A-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_002435.3(MPI):​c.670+9A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,613,710 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000082 ( 0 hom. )

Consequence

MPI
NM_002435.3 intron

Scores

11

Clinical Significance

Likely benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: -1.68
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.123479456).
BP6
Variant 15-74893329-A-T is Benign according to our data. Variant chr15-74893329-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 794911.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MPINM_002435.3 linkc.670+9A>T intron_variant Intron 5 of 7 ENST00000352410.9 NP_002426.1 P34949-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MPIENST00000352410.9 linkc.670+9A>T intron_variant Intron 5 of 7 1 NM_002435.3 ENSP00000318318.6 P34949-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152014
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
249742
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135140
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000821
AC:
120
AN:
1461696
Hom.:
0
Cov.:
40
AF XY:
0.0000866
AC XY:
63
AN XY:
727144
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:
0.000103
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152014
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74256
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

MPI-congenital disorder of glycosylation Uncertain:1Benign:1
Feb 13, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jul 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
4.1
DANN
Benign
0.83
FATHMM_MKL
Benign
0.070
N
LIST_S2
Benign
0.25
T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.12
T
PROVEAN
Benign
-1.9
N
Sift
Benign
0.15
T
Sift4G
Benign
0.17
T
Vest4
0.13
MVP
0.96
GERP RS
-0.38
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs7495739; hg19: chr15-75185670; API