Genetic Variant ENO2:p.Phe178Leu (chr12-6918029-T-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001975.3(ENO2):c.534T>G(p.Phe178Leu) 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 1,461,892 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ENO2
NM_001975.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.190

Publications

0 publications found

Variant links:

Genes affected

ENO2 (HGNC:3353): (enolase 2) This gene encodes one of the three enolase isoenzymes found in mammals. This isoenzyme, a homodimer, is found in mature neurons and cells of neuronal origin. A switch from alpha enolase to gamma enolase occurs in neural tissue during development in rats and primates. [provided by RefSeq, Jul 2008]

ENO2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.92

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENO2	NM_001975.3 link	c.534T>G	p.Phe178Leu	missense_variant	Exon 7 of 12	ENST00000229277.6	NP_001966.1	P09104-1Q6FHV6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENO2	ENST00000229277.6 link	c.534T>G	p.Phe178Leu	missense_variant	Exon 7 of 12	1	NM_001975.3	ENSP00000229277.1		P09104-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1112010

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 03, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.534T>G (p.F178L) alteration is located in exon 7 (coding exon 6) of the ENO2 gene. This alteration results from a T to G substitution at nucleotide position 534, causing the phenylalanine (F) at amino acid position 178 to be replaced by a leucine (L). 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

Pathogenic

0.98

BayesDel_addAF

Benign

-0.027

BayesDel_noAF

Benign

-0.28

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.54

D;D;.;D

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.50

FATHMM_MKL

Uncertain

0.84

LIST_S2

Pathogenic

0.98

.;D;D;.

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.92

D;D;D;D

MetaSVM

Benign

-0.58

MutationAssessor

Pathogenic

3.6

H;H;.;H

PhyloP100

0.19

PrimateAI

Pathogenic

0.86

PROVEAN

Pathogenic

-5.4

D;D;D;D

REVEL

Uncertain

0.33

Sift

Uncertain

0.0040

D;D;D;D

Sift4G

Uncertain

0.0030

D;D;D;D

Polyphen

0.64

P;P;.;P

Vest4

0.82

MutPred

0.81

Gain of phosphorylation at S177 (P = 0.1758);Gain of phosphorylation at S177 (P = 0.1758);.;Gain of phosphorylation at S177 (P = 0.1758);

MVP

0.60

MPC

1.4

ClinPred

1.0

GERP RS

-5.3

Varity_R

0.95

gMVP

0.89

Mutation Taster

=39/61

disease causing

(source)

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

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12-6918029-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over