2-118843203-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001426.4(EN1):​c.914G>A​(p.Arg305Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,399,264 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: 31)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

EN1
NM_001426.4 missense

Scores

15
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.78
Variant links:
Genes affected
EN1 (HGNC:3342): (engrailed homeobox 1) Homeobox-containing genes are thought to have a role in controlling development. In Drosophila, the 'engrailed' (en) gene plays an important role during development in segmentation, where it is required for the formation of posterior compartments. Different mutations in the mouse homologs, En1 and En2, produced different developmental defects that frequently are lethal. The human engrailed homologs 1 and 2 encode homeodomain-containing proteins and have been implicated in the control of pattern formation during development of the central nervous system. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.922

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EN1NM_001426.4 linkuse as main transcriptc.914G>A p.Arg305Gln missense_variant 2/2 ENST00000295206.7 NP_001417.3 Q05925

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EN1ENST00000295206.7 linkuse as main transcriptc.914G>A p.Arg305Gln missense_variant 2/22 NM_001426.4 ENSP00000295206.5 Q05925
EN1ENST00000546667.1 linkuse as main transcriptn.*32G>A downstream_gene_variant 5

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
7.15e-7
AC:
1
AN:
1399264
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
693444
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:
9.30e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

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 GeneticsSep 01, 2021The c.914G>A (p.R305Q) alteration is located in exon 2 (coding exon 2) of the EN1 gene. This alteration results from a G to A substitution at nucleotide position 914, causing the arginine (R) at amino acid position 305 to be replaced by a glutamine (Q). 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
1.0
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.31
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.95
D
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.88
D
MetaRNN
Pathogenic
0.92
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.6
M
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-3.9
D
REVEL
Pathogenic
0.93
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.80
MutPred
0.59
Loss of MoRF binding (P = 0.0387);
MVP
0.97
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.81
gMVP
0.87

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: chr2-119600779; COSMIC: COSV54631805; COSMIC: COSV54631805; API