chr18-677842-G-T

Variant summary

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

The NM_017512.7(ENOSF1):​c.949C>A​(p.Leu317Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,732 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: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ENOSF1
NM_017512.7 missense

Scores

3
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.74
Variant links:
Genes affected
ENOSF1 (HGNC:30365): (enolase superfamily member 1) This gene can encode a mitochondrial enzyme that is thought to convert L-fuconate to 2-keto-3-deoxy-L-fuconate. This locus was originally identified as the source of antisense RNAs of the adjacent thymidylate synthase gene. Splice variants at this locus may contain an alternate 3' exon that is complementary to the 3'UTR and terminal intron of the thymidylate synthase (TS) RNA and may downregulate TS expression. [provided by RefSeq, Aug 2017]

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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=0.37318367).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ENOSF1NM_017512.7 linkuse as main transcriptc.949C>A p.Leu317Ile missense_variant 13/16 ENST00000647584.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ENOSF1ENST00000647584.2 linkuse as main transcriptc.949C>A p.Leu317Ile missense_variant 13/16 NM_017512.7 P1Q7L5Y1-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251272
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135810
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461732
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727164
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsDec 27, 2023The c.970C>A (p.L324I) alteration is located in exon 12 (coding exon 12) of the ENOSF1 gene. This alteration results from a C to A substitution at nucleotide position 970, causing the leucine (L) at amino acid position 324 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
0.20
BayesDel_addAF
Benign
-0.015
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.11
.;.;T;.;T
Eigen
Uncertain
0.63
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.37
T;T;T;T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
1.8
.;.;L;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-1.5
.;N;N;.;.
REVEL
Benign
0.22
Sift
Benign
0.16
.;T;T;.;.
Sift4G
Benign
0.13
.;T;T;.;T
Polyphen
0.66, 0.27
.;P;B;.;.
Vest4
0.56, 0.59, 0.54
MutPred
0.36
.;.;Gain of catalytic residue at L322 (P = 0.0553);.;.;
MVP
0.21
MPC
0.10
ClinPred
0.72
D
GERP RS
6.0
Varity_R
0.55

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs1322126981; hg19: chr18-677842; COSMIC: COSV51890372; COSMIC: COSV51890372; API