chr6-131808037-T-G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_006208.3(ENPP1):ā€‹c.2T>Gā€‹(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000432 in 694,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā˜…).

Frequency

Genomes: not found (cov: 16)
Exomes š‘“: 0.0000043 ( 0 hom. )

Consequence

ENPP1
NM_006208.3 start_lost

Scores

6
4
6

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.458
Variant links:
Genes affected
ENPP1 (HGNC:3356): (ectonucleotide pyrophosphatase/phosphodiesterase 1) This gene is a member of the ecto-nucleotide pyrophosphatase/phosphodiesterase (ENPP) family. The encoded protein is a type II transmembrane glycoprotein comprising two identical disulfide-bonded subunits. This protein has broad specificity and cleaves a variety of substrates, including phosphodiester bonds of nucleotides and nucleotide sugars and pyrophosphate bonds of nucleotides and nucleotide sugars. This protein may function to hydrolyze nucleoside 5' triphosphates to their corresponding monophosphates and may also hydrolyze diadenosine polyphosphates. Mutations in this gene have been associated with 'idiopathic' infantile arterial calcification, ossification of the posterior longitudinal ligament of the spine (OPLL), and insulin resistance. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 6-131808037-T-G is Pathogenic according to our data. Variant chr6-131808037-T-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3593042.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ENPP1NM_006208.3 linkc.2T>G p.Met1? start_lost 1/25 ENST00000647893.1 NP_006199.2 P22413

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ENPP1ENST00000647893.1 linkc.2T>G p.Met1? start_lost 1/25 NM_006208.3 ENSP00000498074.1 P22413
ENPP1ENST00000486853.1 linkn.22T>G non_coding_transcript_exon_variant 1/42
ENPP1ENST00000513998.5 linkn.2T>G non_coding_transcript_exon_variant 1/255 ENSP00000422424.1 E9PE72

Frequencies

GnomAD3 genomes
Cov.:
16
GnomAD4 exome
AF:
0.00000432
AC:
3
AN:
694028
Hom.:
0
Cov.:
21
AF XY:
0.00
AC XY:
0
AN XY:
322080
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:
0.00000473
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
16

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Type 2 diabetes mellitus;C2750078:Hypophosphatemic rickets, autosomal recessive, 2;C3809781:Hypopigmentation-punctate palmoplantar keratoderma syndrome;C4054476:Inherited obesity;C4551985:Arterial calcification, generalized, of infancy, 1 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 23, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.20
CADD
Benign
23
DANN
Benign
0.92
DEOGEN2
Benign
0.27
T;T
Eigen
Uncertain
0.23
Eigen_PC
Benign
0.15
FATHMM_MKL
Benign
0.63
D
LIST_S2
Uncertain
0.90
.;D
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Uncertain
-0.19
T
PROVEAN
Benign
-0.47
N;.
REVEL
Uncertain
0.49
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0
D;.
Polyphen
0.93
P;P
Vest4
0.64
MutPred
0.99
Gain of MoRF binding (P = 0.0224);Gain of MoRF binding (P = 0.0224);
MVP
0.89
ClinPred
0.61
D
GERP RS
4.5
Varity_R
0.95
gMVP
0.28

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: chr6-132129177; API