rs74336587

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004870.4(MPDU1):​c.302+21C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.025 in 1,612,516 control chromosomes in the GnomAD database, including 595 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 44 hom., cov: 31)
Exomes 𝑓: 0.026 ( 551 hom. )

Consequence

MPDU1
NM_004870.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.162
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 17-7586099-C-T is Benign according to our data. Variant chr17-7586099-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 259558.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0185 (2810/152262) while in subpopulation NFE AF= 0.0277 (1886/68010). AF 95% confidence interval is 0.0267. There are 44 homozygotes in gnomad4. There are 1339 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 44 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MPDU1NM_004870.4 linkuse as main transcriptc.302+21C>T intron_variant ENST00000250124.11 NP_004861.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MPDU1ENST00000250124.11 linkuse as main transcriptc.302+21C>T intron_variant 1 NM_004870.4 ENSP00000250124 P1O75352-1

Frequencies

GnomAD3 genomes
AF:
0.0185
AC:
2809
AN:
152144
Hom.:
44
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00548
Gnomad AMI
AF:
0.0526
Gnomad AMR
AF:
0.0157
Gnomad ASJ
AF:
0.0161
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0213
Gnomad FIN
AF:
0.0193
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0277
Gnomad OTH
AF:
0.0196
GnomAD3 exomes
AF:
0.0223
AC:
5587
AN:
250732
Hom.:
76
AF XY:
0.0228
AC XY:
3087
AN XY:
135538
show subpopulations
Gnomad AFR exome
AF:
0.00469
Gnomad AMR exome
AF:
0.0197
Gnomad ASJ exome
AF:
0.0139
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0248
Gnomad FIN exome
AF:
0.0203
Gnomad NFE exome
AF:
0.0295
Gnomad OTH exome
AF:
0.0247
GnomAD4 exome
AF:
0.0257
AC:
37540
AN:
1460254
Hom.:
551
Cov.:
32
AF XY:
0.0259
AC XY:
18833
AN XY:
726452
show subpopulations
Gnomad4 AFR exome
AF:
0.00428
Gnomad4 AMR exome
AF:
0.0192
Gnomad4 ASJ exome
AF:
0.0129
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0263
Gnomad4 FIN exome
AF:
0.0219
Gnomad4 NFE exome
AF:
0.0282
Gnomad4 OTH exome
AF:
0.0225
GnomAD4 genome
AF:
0.0185
AC:
2810
AN:
152262
Hom.:
44
Cov.:
31
AF XY:
0.0180
AC XY:
1339
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.00546
Gnomad4 AMR
AF:
0.0158
Gnomad4 ASJ
AF:
0.0161
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0215
Gnomad4 FIN
AF:
0.0193
Gnomad4 NFE
AF:
0.0277
Gnomad4 OTH
AF:
0.0194
Alfa
AF:
0.0243
Hom.:
19
Bravo
AF:
0.0178
Asia WGS
AF:
0.00779
AC:
27
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 17, 2019- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
2.8
DANN
Benign
0.39
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs74336587; hg19: chr17-7489417; API