Genetic Variant MVD:p.Ala352Val (chr16-88653367-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002461.3(MVD):c.1055C>T(p.Ala352Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000207 in 1,447,354 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A352G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MVD
NM_002461.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.06

Publications

0 publications found

Variant links:

Genes affected

MVD (HGNC:7529): (mevalonate diphosphate decarboxylase) The enzyme mevalonate pyrophosphate decarboxylase catalyzes the conversion of mevalonate pyrophosphate into isopentenyl pyrophosphate in one of the early steps in cholesterol biosynthesis. It decarboxylates and dehydrates its substrate while hydrolyzing ATP. [provided by RefSeq, Jul 2008]

MVD Gene-Disease associations (from GenCC):

porokeratosis 7, multiple types
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
disseminated superficial actinic porokeratosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

MVD links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.076503545).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MVD	NM_002461.3 link	c.1055C>T	p.Ala352Val	missense_variant	Exon 9 of 10	ENST00000301012.8	NP_002452.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MVD	ENST00000301012.8 link	c.1055C>T	p.Ala352Val	missense_variant	Exon 9 of 10	1	NM_002461.3	ENSP00000301012.3	P53602
MVD	ENST00000565149.5 link	n.1614C>T		non_coding_transcript_exon_variant	Exon 5 of 6	1
MVD	ENST00000561895.1 link	n.336C>T		non_coding_transcript_exon_variant	Exon 2 of 3	2
MVD	ENST00000562981.1 link	n.218C>T		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000207

AC:

AN:

1447354

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

720296

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32238

American (AMR)

AF:

0.00

AC:

AN:

39750

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25568

East Asian (EAS)

AF:

0.00

AC:

AN:

39474

South Asian (SAS)

AF:

0.00

AC:

AN:

84292

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52156

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5720

European-Non Finnish (NFE)

AF:

0.00000271

AC:

AN:

1108360

Other (OTH)

AF:

0.00

AC:

AN:

59796

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.69

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.16

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.72

M_CAP

Benign

0.0098

MetaRNN

Benign

0.077

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

PhyloP100

1.1

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.2

REVEL

Benign

0.043

Sift

Benign

0.28

Sift4G

Benign

0.28

Polyphen

0.014

Vest4

0.22

MutPred

0.33

Loss of helix (P = 0.0626);

MVP

0.088

MPC

0.054

ClinPred

0.072

GERP RS

1.8

RBP_binding_hub_radar

1.0

RBP_regulation_power_radar

2.7

Varity_R

0.058

gMVP

0.35

Mutation Taster

=91/9

polymorphism

(source)

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

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16-88653367-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over