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17-7583885-C-T

Variant summary

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

The NM_004870.4(MPDU1):​c.23C>T​(p.Pro8Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P8P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

MPDU1
NM_004870.4 missense

Scores

14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.574
Variant links:
Genes affected
MPDU1 (HGNC:7207): (mannose-P-dolichol utilization defect 1) This gene encodes an endoplasmic reticulum membrane protein that is required for utilization of the mannose donor mannose-P-dolichol in the synthesis of lipid-linked oligosaccharides and glycosylphosphatidylinositols. Mutations in this gene result in congenital disorder of glycosylation type If. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2008]
MPDU1-AS1 (HGNC:40379): (MPDU1 antisense RNA 1)

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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;
BP4
Computational evidence support a benign effect (MetaRNN=0.06955114).
BP6
Variant 17-7583885-C-T is Benign according to our data. Variant chr17-7583885-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2240105.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MPDU1NM_004870.4 linkuse as main transcriptc.23C>T p.Pro8Leu missense_variant 1/7 ENST00000250124.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MPDU1ENST00000250124.11 linkuse as main transcriptc.23C>T p.Pro8Leu missense_variant 1/71 NM_004870.4 P1O75352-1
MPDU1-AS1ENST00000655859.2 linkuse as main transcriptn.181+33G>A intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152280
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000964
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251286
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135858
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461778
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727200
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152280
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74400
show subpopulations
Gnomad4 AFR
AF:
0.0000964
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000660
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 02, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
1.2
DANN
Benign
0.89
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.65
T;T;T;T;T;T;T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.070
T;T;T;T;T;T;T
MetaSVM
Benign
-0.77
T
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.26
T
Sift4G
Benign
0.24
T;T;D;T;D;T;T
Polyphen
0.0040
.;B;.;.;.;.;.
Vest4
0.066
MVP
0.39
MPC
0.36
ClinPred
0.13
T
GERP RS
-8.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.020
gMVP
0.60

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: rs769696421; hg19: chr17-7487203; API