chr14-24214577-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_138476.4(MDP1):ā€‹c.232A>Gā€‹(p.Asn78Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,890 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 Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

MDP1
NM_138476.4 missense

Scores

10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.67
Variant links:
Genes affected
MDP1 (HGNC:28781): (magnesium dependent phosphatase 1) Predicted to enable acid phosphatase activity. Predicted to be involved in fructosamine metabolic process and peptidyl-tyrosine dephosphorylation. [provided by Alliance of Genome Resources, Apr 2022]
NEDD8-MDP1 (HGNC:39551): (NEDD8-MDP1 readthrough) This locus represents naturally occurring read-through transcription between the neighboring NEDD8 (neural precursor cell expressed, developmentally down-regulated 8) and MDP1 (magnesium-dependent phosphatase 1) genes on chromosome 14. One of the read-through transcripts on this locus encodes a fusion protein that shares sequence identity with the products of each individual gene. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.40547907).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MDP1NM_138476.4 linkuse as main transcriptc.232A>G p.Asn78Asp missense_variant 4/6 ENST00000288087.12 NP_612485.2 Q86V88-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MDP1ENST00000288087.12 linkuse as main transcriptc.232A>G p.Asn78Asp missense_variant 4/61 NM_138476.4 ENSP00000288087.7 Q86V88-1
NEDD8-MDP1ENST00000534348.5 linkuse as main transcriptc.283A>G p.Asn95Asp missense_variant 5/75 ENSP00000431482.1 E9PL57

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251482
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135914
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461890
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727244
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 31, 2024The c.232A>G (p.N78D) alteration is located in exon 4 (coding exon 4) of the MDP1 gene. This alteration results from a A to G substitution at nucleotide position 232, causing the asparagine (N) at amino acid position 78 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.072
D
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.060
T;.;.
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Benign
0.71
D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.41
T;T;T
MetaSVM
Uncertain
0.58
D
MutationAssessor
Benign
1.9
L;L;.
PROVEAN
Uncertain
-2.6
D;D;D
REVEL
Uncertain
0.35
Sift
Uncertain
0.012
D;D;D
Sift4G
Uncertain
0.012
D;D;D
Polyphen
0.43
B;P;.
Vest4
0.33
MutPred
0.45
Gain of catalytic residue at I74 (P = 0.021);Gain of catalytic residue at I74 (P = 0.021);.;
MVP
0.87
MPC
0.25
ClinPred
0.84
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.48
gMVP
0.20

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: rs1244186776; hg19: chr14-24683783; API