chr4-184116873-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_153343.4(ENPP6):ā€‹c.838C>Gā€‹(p.Pro280Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

ENPP6
NM_153343.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.02
Variant links:
Genes affected
ENPP6 (HGNC:23409): (ectonucleotide pyrophosphatase/phosphodiesterase 6) Enables glycerophosphocholine cholinephosphodiesterase activity. Involved in choline metabolic process and lipid metabolic process. Located in extracellular region and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17523026).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ENPP6NM_153343.4 linkuse as main transcriptc.838C>G p.Pro280Ala missense_variant 5/8 ENST00000296741.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ENPP6ENST00000296741.7 linkuse as main transcriptc.838C>G p.Pro280Ala missense_variant 5/81 NM_153343.4 P1
ENPP6ENST00000512353.1 linkuse as main transcriptc.574C>G p.Pro192Ala missense_variant 6/63
ENPP6ENST00000510054.1 linkuse as main transcriptn.226C>G non_coding_transcript_exon_variant 2/33

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251412
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135884
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS 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:
0.00000205
AC:
3
AN:
1461310
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726944
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsAug 22, 2023The c.838C>G (p.P280A) alteration is located in exon 5 (coding exon 5) of the ENPP6 gene. This alteration results from a C to G substitution at nucleotide position 838, causing the proline (P) at amino acid position 280 to be replaced by an alanine (A). 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
0.063
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
16
DANN
Benign
0.87
DEOGEN2
Benign
0.044
T;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.19
FATHMM_MKL
Benign
0.48
N
LIST_S2
Benign
0.83
T;T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.18
T;T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
1.6
L;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-2.1
N;D
REVEL
Benign
0.28
Sift
Benign
0.63
T;T
Sift4G
Benign
0.19
T;.
Polyphen
0.16
B;.
Vest4
0.41
MutPred
0.56
Loss of relative solvent accessibility (P = 0.0071);.;
MVP
0.83
MPC
0.22
ClinPred
0.13
T
GERP RS
5.6
Varity_R
0.063
gMVP
0.46

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs748996220; hg19: chr4-185038026; API