rs139171143

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_000080.4(CHRNE):​c.1402G>T​(p.Val468Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V468M) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CHRNE
NM_000080.4 missense

Scores

19

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.492
Variant links:
Genes affected
CHRNE (HGNC:1966): (cholinergic receptor nicotinic epsilon subunit) Acetylcholine receptors at mature mammalian neuromuscular junctions are pentameric protein complexes composed of four subunits in the ratio of two alpha subunits to one beta, one epsilon, and one delta subunit. The acetylcholine receptor changes subunit composition shortly after birth when the epsilon subunit replaces the gamma subunit seen in embryonic receptors. Mutations in the epsilon subunit are associated with congenital myasthenic syndrome. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12414622).
BP6
Variant 17-4898816-C-A is Benign according to our data. Variant chr17-4898816-C-A is described in ClinVar as [Benign]. Clinvar id is 2201526.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHRNENM_000080.4 linkuse as main transcriptc.1402G>T p.Val468Leu missense_variant 12/12 ENST00000649488.2
CHRNEXM_017024115.2 linkuse as main transcriptc.1366G>T p.Val456Leu missense_variant 13/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHRNEENST00000649488.2 linkuse as main transcriptc.1402G>T p.Val468Leu missense_variant 12/12 NM_000080.4 P1
CHRNEENST00000649830.1 linkuse as main transcriptc.*38G>T 3_prime_UTR_variant 11/11
CHRNEENST00000572438.1 linkuse as main transcriptn.1088G>T non_coding_transcript_exon_variant 7/75
CHRNEENST00000652550.1 linkuse as main transcriptn.1128G>T non_coding_transcript_exon_variant 4/4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1451196
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
720804
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital myasthenic syndrome 4A Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeOct 20, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
14
DANN
Benign
0.94
DEOGEN2
Benign
0.12
T;T
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.71
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.57
.;T
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.12
T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
-1.0
N;N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
0.040
N;.
REVEL
Benign
0.20
Sift
Benign
0.44
T;.
Sift4G
Benign
0.78
T;.
Polyphen
0.0060
B;B
Vest4
0.026
MutPred
0.52
Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);
MVP
0.74
MPC
0.17
ClinPred
0.11
T
GERP RS
0.89
Varity_R
0.084
gMVP
0.51

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: rs139171143; hg19: chr17-4802111; API