rs773403940

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS1_Supporting

The NM_003859.3(DPM1):​c.757T>G​(p.Leu253Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000194 in 1,601,344 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L253L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

DPM1
NM_003859.3 missense

Scores

1
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.04

Publications

0 publications found
Variant links:
Genes affected
DPM1 (HGNC:3005): (dolichyl-phosphate mannosyltransferase subunit 1, catalytic) Dolichol-phosphate mannose (Dol-P-Man) serves as a donor of mannosyl residues on the lumenal side of the endoplasmic reticulum (ER). Lack of Dol-P-Man results in defective surface expression of GPI-anchored proteins. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. Human DPM1 lacks a carboxy-terminal transmembrane domain and signal sequence and is regulated by DPM2. Mutations in this gene are associated with congenital disorder of glycosylation type Ie. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2015]
ADNP-AS1 (HGNC:51227): (ADNP antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.35495025).
BS1
Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.0000207 (30/1449236) while in subpopulation AMR AF = 0.000671 (30/44686). AF 95% confidence interval is 0.000483. There are 0 homozygotes in GnomAdExome4. There are 16 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003859.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DPM1
NM_003859.3
MANE Select
c.757T>Gp.Leu253Val
missense
Exon 9 of 9NP_003850.1O60762
DPM1
NM_001317034.1
c.862T>Gp.Leu288Val
missense
Exon 10 of 10NP_001303963.1O60762
DPM1
NM_001317035.1
c.838T>Gp.Leu280Val
missense
Exon 10 of 10NP_001303964.1Q5QPK2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DPM1
ENST00000371588.10
TSL:1 MANE Select
c.757T>Gp.Leu253Val
missense
Exon 9 of 9ENSP00000360644.5O60762
DPM1
ENST00000371582.8
TSL:1
c.838T>Gp.Leu280Val
missense
Exon 10 of 10ENSP00000360638.4Q5QPK2
DPM1
ENST00000466152.5
TSL:1
n.*212T>G
non_coding_transcript_exon
Exon 9 of 9ENSP00000507119.1A0A804HIK9

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152108
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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
GnomAD2 exomes
AF:
0.000108
AC:
27
AN:
251008
AF XY:
0.000118
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000782
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000207
AC:
30
AN:
1449236
Hom.:
0
Cov.:
27
AF XY:
0.0000222
AC XY:
16
AN XY:
721992
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33194
American (AMR)
AF:
0.000671
AC:
30
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26028
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39518
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85858
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5398
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1101208
Other (OTH)
AF:
0.00
AC:
0
AN:
59938
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152108
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74316
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41412
American (AMR)
AF:
0.0000655
AC:
1
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68002
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000341
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.000107
AC:
13

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Congenital disorder of glycosylation type 1E (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.079
T
BayesDel_noAF
Uncertain
0.010
CADD
Benign
19
DANN
Benign
0.50
DEOGEN2
Benign
0.36
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.53
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.35
T
MetaSVM
Benign
-0.73
T
MutationAssessor
Benign
1.5
L
PhyloP100
3.0
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-1.0
N
REVEL
Uncertain
0.52
Sift
Benign
0.42
T
Sift4G
Benign
0.56
T
Polyphen
0.36
B
Vest4
0.63
MutPred
0.77
Loss of ubiquitination at K251 (P = 0.0962)
MVP
0.93
MPC
0.29
ClinPred
0.065
T
GERP RS
0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.060
gMVP
0.85
Mutation Taster
=44/56
disease causing

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

Other links and lift over

dbSNP: rs773403940; hg19: chr20-49551695; API