ENST00000521575.1:c.-303G>A

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The ENST00000521575.1(C17orf107):​c.-303G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000076 in 1,578,828 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000077 ( 0 hom. )

Consequence

C17orf107
ENST00000521575.1 5_prime_UTR

Scores

2
Splicing: ADA: 0.00004914
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.100

Publications

0 publications found
Variant links:
Genes affected
C17orf107 (HGNC:37238): (chromosome 17 open reading frame 107)
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]
CHRNE Gene-Disease associations (from GenCC):
  • congenital myasthenic syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: Illumina
  • congenital myasthenic syndrome 4A
    Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • congenital myasthenic syndrome 4B
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • congenital myasthenic syndrome 4C
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • postsynaptic congenital myasthenic syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 17-4899460-G-A is Benign according to our data. Variant chr17-4899460-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 254889.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHRNENM_000080.4 linkc.1032+8C>T splice_region_variant, intron_variant Intron 9 of 11 ENST00000649488.2 NP_000071.1 Q04844
C17orf107NM_001145536.2 linkc.-303G>A upstream_gene_variant ENST00000381365.4 NP_001139008.1 Q6ZR85

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CHRNEENST00000649488.2 linkc.1032+8C>T splice_region_variant, intron_variant Intron 9 of 11 NM_000080.4 ENSP00000497829.1 Q04844
C17orf107ENST00000381365.4 linkc.-303G>A upstream_gene_variant 2 NM_001145536.2 ENSP00000370770.3 Q6ZR85

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152052
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000261
AC:
5
AN:
191702
AF XY:
0.0000193
show subpopulations
Gnomad AFR exome
AF:
0.000181
Gnomad AMR exome
AF:
0.0000709
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000771
AC:
11
AN:
1426776
Hom.:
0
Cov.:
34
AF XY:
0.00000849
AC XY:
6
AN XY:
706600
show subpopulations
African (AFR)
AF:
0.0000606
AC:
2
AN:
32986
American (AMR)
AF:
0.0000767
AC:
3
AN:
39092
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25356
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38298
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81456
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49202
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5278
European-Non Finnish (NFE)
AF:
0.00000547
AC:
6
AN:
1095982
Other (OTH)
AF:
0.00
AC:
0
AN:
59126
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152052
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74276
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41360
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67992
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Congenital myasthenic syndrome 4A Benign:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
1.5
DANN
Benign
0.88
PhyloP100
-0.10
PromoterAI
-0.19
Neutral

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000049
dbscSNV1_RF
Benign
0.0020
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

Other links and lift over

dbSNP: rs755463469; hg19: chr17-4802755; API