chr14-24214109-G-A

Variant summary

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

The NM_138476.4(MDP1):​c.446C>T​(p.Thr149Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,390 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 (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MDP1
NM_138476.4 missense

Scores

1
4
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.13
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]

Genome browser will be placed here

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=0.33683085).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MDP1NM_138476.4 linkuse as main transcriptc.446C>T p.Thr149Ile missense_variant 6/6 ENST00000288087.12 NP_612485.2 Q86V88-1
NEDD8-MDP1NM_001199823.3 linkuse as main transcriptc.497C>T p.Thr166Ile missense_variant 7/7 NP_001186752.1
MDP1NM_001199821.2 linkuse as main transcriptc.306C>T p.Asn102Asn synonymous_variant 5/5 NP_001186750.1 Q86V88-3
MDP1NM_001199822.2 linkuse as main transcriptc.*80C>T 3_prime_UTR_variant 6/6 NP_001186751.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MDP1ENST00000288087.12 linkuse as main transcriptc.446C>T p.Thr149Ile missense_variant 6/61 NM_138476.4 ENSP00000288087.7 Q86V88-1
NEDD8-MDP1ENST00000534348.5 linkuse as main transcriptc.497C>T p.Thr166Ile missense_variant 7/75 ENSP00000431482.1 E9PL57

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461390
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726980
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:
8.99e-7
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 GeneticsApr 27, 2022The c.446C>T (p.T149I) alteration is located in exon 6 (coding exon 6) of the MDP1 gene. This alteration results from a C to T substitution at nucleotide position 446, causing the threonine (T) at amino acid position 149 to be replaced by an isoleucine (I). 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
0.11
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
-0.020
CADD
Benign
17
DANN
Benign
0.92
DEOGEN2
Benign
0.031
T;.
Eigen
Benign
-0.17
Eigen_PC
Benign
-0.059
FATHMM_MKL
Benign
0.57
D
M_CAP
Pathogenic
0.55
D
MetaRNN
Benign
0.34
T;T
MetaSVM
Uncertain
0.39
D
PROVEAN
Benign
-0.19
N;N
REVEL
Uncertain
0.34
Sift
Benign
0.47
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.19
B;.
Vest4
0.12
MutPred
0.35
Gain of catalytic residue at L154 (P = 0.001);.;
MVP
0.82
MPC
0.15
ClinPred
0.85
D
GERP RS
3.4
Varity_R
0.11
gMVP
0.10

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-24683315; API